ATSAM4C16 - Microcontroller Microchip - Free user manual and instructions

USER MANUAL ATSAM4C16 Microchip

Blue printed circuit board with various electronic components and connectors (no visible text or symbols)

Introduction

The ATSAM4C-EK is an evaluation kit for the 32-bit ARM® Cortex®-M4 SAM4C microcontroller from Atmel® Corporation.

The ATSAM4C-EK can be used with the following SAM4C series microcontrollers:

SAM4C16C
SAM4C8C

This document describes the kit contents and architecture, and provides guidelines on how to use the kit.

Contents

- Board

• One SAM4C Evaluation Kit Board (EK)

Power Supply

• One universal input AC/DC power supply with US, Europe and UK plug adapters
• One 3V Lithium Battery type CR1225

Cables

• One serial RS232 cable
• One micro A/B-type USB cable

- Welcome letter

Reference documents

• Atmel SAM4C Series Datasheet

(http://www.atmel.com/images/atmel_11102_smartenergy_sam4c16-c8_datasheet.pdf)

Table of Contents

Introduction....1

Contents 2

Reference documents....2

Table of Contents 3

1. Evaluation Kit Specifications .... 4

1.1 Electrostatic Warning 4
1.2 Battery....4
1.3 Recovery Procedure 4

2. Power Up 5

2.1 Power up the Board 5

2.2 Sample Code and Technical Support 5

3. Evaluation Kit Hardware 6

3.1 Overview....6

3.2 Equipment List 7

3.3 Function Blocks....9

3.4 Embedded Memories 12

3.5 Communication Interfaces 14

3.6 Debug Interfaces....15

3.7 Extend Interfaces 16

3.8 LCD Display 18

3.9 Analog I/O. 21

3.10 CryptoAuthentication (optional)....22

3.11 LEDs and Buttons....23

3.12 Miscellaneous I/O 24

3.13 Metrology Core Serial Interface 24

3.14 PIO Usage 25

3.15 Connectors 28

4. Evaluation Kit Firmware Demonstration 35

4.1 ATSAM4C-EK Default Application 35

4.2 Measuring the Backup mode current consumption on VDDBU ..... 35

5. ATSAM4C-EK Design Files 37

5.1 ATSAM4C-EK Schematics 37

5.2 ATSAM4C-EK Layout 45

6. Revision History 53

1. Evaluation Kit Specifications

Table 1-1. Evaluation Kit Specifications

Characteristic Specifications
PCB 6 layers, 140 mm x 100 mm
PCB Material Standard FR4 in 1.6 mm thickness
Clock Speed	Crystal 8 MHzPiezoelectric Ceramic Resonator 8.192 MHz32.768 kHz external clock
Ports	RS232RS485USB
Memory	TWI EEPROMSerial Data Flash
Board Supply Voltage	5V DC from main connector power supply5V DC from USB3V Battery for Backup and RTC
ROHS Compliant
CE and FCC Part 15 status Compliant

1.1 Electrostatic Warning

Warning: ESD-Sensitive Electronic Equipment!

The evaluation kit is shipped in a protective anti-static package. The board system must not be subjected to high electrostatic discharge.

We strongly recommend using a grounding strap or similar ESD protective device when handling the board in hostile ESD environments (offices with synthetic carpet, for example). Avoid touching the component pins or any other metallic element on the board.

1.2 Battery

The ATSAM4C-EK ships with a 3V coin battery. This battery is not required for the board to start up as long as Jumper JP8 is closed.

The coin battery is provided for user convenience in case the user would like to exercise the date and time backup function of the SAM4C devices when the board is switched off.

1.3 Recovery Procedure

The demo software is stored in internal Flash memory. If the content of the internal Flash has been erased, it can be reprogrammed recovered to the state as it was when shipped by Atmel using Atmel SAM-BA ^® In-system Programmer available on the Atmel website (www.atmel.com/tools/atmelsam-bain-systemprogrammer.aspx). The binary file of the demo software is available on the Atmel website in the ATSAM4C-EK Evaluation Kit Section (http://www.atmel.com/tools/SAM4C-EK.aspx).

2. Power Up

2.1 Power up the Board

Unpack the board taking care to avoid electrostatic discharge. Unpack the power supply, select the right power plug adapter corresponding to that of your country, and insert it in the power supply.

Connect the power supply DC connector to the board and plug the power supply to an AC power plug. The board LCD should light up and display a graphic demo program.

2.2 Sample Code and Technical Support

After boot up, designers can run sample code or their own application, on the development kit. Users can download sample code and get technical support from the Atmel website. The ATSAM4C-EK is supported by the Atmel Software Framework (ASF) (http://www.atmel.com/tools/AVRSOFTWAREFRAMEWORK.aspx).

3. Evaluation Kit Hardware

3.1 Overview

This section introduces the Atmel SAM4C Evaluation Kit design. It introduces system-level concepts, such as power distribution, memory, and interface assignments.

The Atmel SAM4C16C and SAM4C8C microcontrollers are system-on-chip solutions for smart energy applications, built around two high-performance 32-bit ARM Cortex-M4 RISC processors. These devices operate at a maximum speed of 120MHz and feature up to 1 Mbyte of embedded Flash, 152 Kbytes of SRAM and on-chip cache for each core.

The dual ARM Cortex-M4 architecture allows for integration of application layer, communications layers and security functions in a single device, with the ability to extend program and data memory via a 16-bit external bus interface. The peripheral set includes an advanced cryptographic engine, two anti-tamper pins with time-stamping function, floating point unit (FPU), five USARTs, two UARTs, two TWIs, up to seven SPIs, as well as a PWM timer, two 3-channel general-purpose 16-bit timers, temperature compensable low-power RTC running on backup area down to 0.5 A , and a 50× 6 segmented LCD controller.

The SAM4C series is a scalable platform providing, alongside Atmel's industry leading SAM4 standard microcontrollers, unprecedented cost structure, performance and flexibility to smart meter designers worldwide.

Figure 3-1. ATSAM4C-EK Board Architecture

graph TD
    A["3V3 LDO"] -->|3V3| B["SAM4C16C LQFP100"]
    C["4-Wire RS232"] -->|SHDN| B
    D["RS485"] -->|USART2| B
    E["2-Wire RS232"] -->|UART1| B
    F["XPRO Extension"] -->|SPI, TWI, UART, ADC...| B
    G["RZ600 Wireless"] -->|SPI 0| B
    H["AT24C EEPROM"] --> I["TWI"]
    J["AT30TS75 Temperature Sensor"] --> I
    K["ATSHA204 Crypto Authentication (Optional)"] --> I
    I --> L["VDDBU"]
    M["ATD"] --> N["LCD"]
    O["ACM"] --> P["SCROLL UP, SCROLL DOWN"]
    Q["Tamper 0, Tamper 2"] --> R["Serial Debug"]
    S["USB"] --> T["UART TO USB"]
    U["USB"] --> V["JTAG"]
    W["USB"] --> X["FWUP, Reset"]
    Y["USB"] --> Z["ACM Cortex™-M4"]

3.2 Equipment List

3.2.1 Features List

The CM board components are listed as follows:

• CPU SAM4C with its embedded resources
- 8 MHz and 32.768 kHz Quartz Crystal, SMB connector for external source
- Main regulator 5V/3.3V with red LED indicator
• 1 Lithium Coin Cell Battery

- Main board with:

• 1 custom segmented LCD
• 1 shared interface RS232 / RS485
• 1 Serial data Flash SPI
• 1 Two-Wire Serial EEPROM
• 1 Two-Wire Temperature Sensor
• 1 Two-Wire CryptoAuthentication™ Memory (optional)

- Debug solution:

• 2 peripheral Input/Output extension connectors HE10 (PIO A, B)
• 1 peripheral Input/Output extension connector HE10 (PIO Sense)
• 1 JTAG/ICE interface
• 1 UART/USB bridge Device Communication interface

Analog

• 1 Analog 3V reference
• 1 Potentiometer connected on ADC input

- Buttons

• 4 system push buttons: Reset, Force Wake-Up, Tamper 0, Tamper 2
• 2 user push buttons: Scroll Up and Scroll Down

• LEDs

• 1 amber LED
• 1 blue LED
• 1 green LED

3.2.2 Interface Connection

The ATSAM4C-EK board includes hardware interfaces such as:

1 RS232/RS485 (USART0 RX, TX, RTS, CTS) connected to:
• 9-way male D-type RS232 connector
- 3-pin connector

• 1 JTAG/SWD 20-pin IDC connector

• 1 USB 5-pin type Micro AB connector (bridge UART)

3 PIOs connected to HE10 connectors

Figure 3-2. Annotated ATSAM4C-EK Board Layout

RS232 Interface Power Supply Zigbee Interface System Buttons ATMEL Custom LCD XPRO Interface PIO Extension PIO Extension RS485 Interface Debug Interface + Power Supply JTAG Interface ATMEL SAM4C16 User Buttons Battery Coin Cell PIO Metering Extension

3.3 Function Blocks

3.3.1 Processor

The ATSAM4C-EK board is equipped with a SAM4C16 device in an LQFP100 package.

Figure 3-3. SAM4C Processor

3.3.2 Clock Distribution

The ATSAM4C-EK board includes two clock systems (see Table 3-1 and Figure 3-4).

Table 3-1. Components Clock System

Qty Description Component Assignment
1 Crystal for Internal Clock 8 MHz Y2
1 Crystal for RTC Clock 32.768 kHz Y1

Figure 3-4. Clock System

(4) RTC_32 Do Not Populate R3 0R_DNP C1 18pF Y1 32.768 kHz C19 18pF R4 0R XIN32 R5 0R XOUT32

C20 18pF R6 0R XOUT Y2 8MHz C24 18pF 4 3 R9 0R XIN

3.3.3 Reset and Wake-Up Circuitry

The reset sources for the EK board are:

Power on reset
- Push button reset (refer to Section 3.11.2 "Push Buttons")
• JTAG reset from an in-circuit emulator

3.3.4 Power Supplies

The ATSAM4C-EK board evaluation and development platform embeds all the necessary power rails required for the SAM4C processor and peripherals.

The ATSAM4C-EK board can be supplied by either a 5V DC block through input J2 (see Figure 3-5) or a USB connection via J6 (refer to "DBGU/USB Bridge Schematic" on page 16).

A manual power supply selection switch (SW1) is provided to power on/off the main power line.

Figure 3-5. Power Supply Schematic

J2 DC Power Jack 1 2 USB5V D2 NSR0320MW2T1G D3 NSR0320MW2T1G U1 ZEN056V130A24LS 1 3 2 C29 100nF C30 33μF/16V SW1 SW-SLIDE-3 TP4TP4 5V C31C31 33μF/16V

3.3.5 Power Rails

The SAM4C supports 1.6V–3.6V single supply mode (VDDIN). An internal regulator input is connected to the source and its output feeds VDDCORE (VDDOUT connected to VDDCORE).

When the 3.3V supply is present, the Power LED D5 is lit. Test points TP2 to TP5 are used to perform testing.

Table 3-2. Power Supply Voltage Ranges

Power Supply Ranges Comments
VDDIO 1.6V–3.6V		Flash Memory Charge Pumps Supply for Erase and Program Operations, and Read operationInput Output buffers Supply
VDDBU 1.6V–3.6V		Backup Area power supply. VDDBU is automatically disconnected when VDDIO is present (>1.9V)
VDDIN 1.6V–3.6V 1.6V min.		if LCD and ADC not used, 2.5V otherwise
VDDLCD 2.5V–3.6V		LCD Voltage Regulator OutputExternal LCD power supply input (LCD regulator not used)VDDIO/VDDIN need to be supplied when the LCD Controller is used
VDDOUT 1.2V Output 120 mA Output Current
VDDPLL	1.08V–1.32V	-
VDDCORE	1.08V–1.32V	-

Figure 3-6. Power Rails Schematic

FORCE ON U2 ST8015A PGOOD GND EN ADJ VIN VOUT VD0 NC C36 10F R18 47X 0.1% C37 10F C38 1μF R19R19 13KΩ C44 1μF 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V

VDDOUT JP5JP6 JP7JP7 L2 50μH TPETPS VDDPLL C32 2.2μF/DCP C33 2.2Hz 100mF C34 22uF down to SMMC

Note: Test points and jumpers are provided for easy access to each of the regulated power lines and measure the current on each line.

3.3.6 Battery Backup

The VDDBU pin is powered from the 3.3V rail or from a backup battery BT1 via a dual Schottky diode D4. Test points TP8 and jumper JP8/JP10 are used to perform voltage and current measurements.

Figure 3-7. Backup Battery Schematic

VDDBU TP8 C40 2.2µF JP8 3 D4 BAT54C VDDIN 1 2 VBATT JP10 C42 100nF BT1 VDDBU

3.4 Embedded Memories

I2C for data storage in EEPROM (Atmel AT24C1024B)
• SPI Serial Flash AT45 or AT25F

3.4.1 TWI EEPROM

The AT24C1024B provides 1,048,576 bits of serial electrically erasable and programmable read-only memory (EEPROM) organized as 131,072 words of 8 bits each.

Device slave address byte: 0x50.

Figure 3-8. TWI EEPROM Schematic

VDDMAIN R41 4.7K R42 4.7K SCL A0 SDA A1 VCC A3 GND WIP AT24C1024B 6 5 8 4 U4 Do Not Populate VDDMAIN R39 OR/DNP R40 OR/DNP R45 OR R46 OR SCL SDA VCC GND C62 100nF ADDR: 0X50

3.4.2 SPI Serial Flash

The ATSAM4C-EK embeds one serial Flash device AT25DFxx or AT45DBxx connected through the SPI. (The AT25DF321A is mounted by default.)

Figure 3-9. SPI Serial Flash Schematic

PA7 R100 33R SPI0 MOSIC 5 PA6 R101 33R SPI0 MISOC 2 PA8 R102 33R SPI0 SPCKC 6 PA5 R103 0R SPI0 NPCSC 1 VDDIN R105 470K U10 VCC 8 SI SO /WP 3 SCK /HOLD 7 /CS GND 4 AT25DF321A-SH-B C80 100nF Do Not Populate SPI0 MOSIC 1 SPI0 SPCKC 2 SPI0 NPCSC 3 SPI0 /RESET VCC 6 /CS /WP 5 VDDIN AT45DB321D DNP SPI0 MISOC U13 and U10 PCB footprints differ by 90 degrees and are stacked.

3.4.3 Compatible Devices

Table 3-3. Compatible Devices

Adesto AT45DB Series Devices Adesto AT25DF	Series Devices
AT45DB64D2-CNU AT25DF641A-SH
AT45DB321D-MWU AT25DF321A-SH
AT45DB131D-SS AT25DF161-SH
AT45DB081D-SS AT25DF081-SSH
AT45DB041D-SS AT25DF021-SH
AT45DB021D-SS –
AT45DB011D-SS –

3.5 Communication Interfaces

3.5.1 Serial Port USART2 RS232

The USART2 is buffered with one RS-232 Transceiver ADM3312E (Analog Devices) and is connected to a DB9 connector. A classic implementation RS232 transceiver selection should include double source capability. The USART2 connector with RTS/CTS handshake signal support is connected to the RS232 transceiver.

Features:

• One RS232 transceiver connected to RXD2, TXD2, RTS2, and CTS2
• One DB9 male connector
• Required resistors and capacitors

Figure 3-10. USART2 RS232 Schematic

USART2 MN3 ADM3312EARU VCC C1+ 6 C50 100nF C47 4.7μF C48 100nF C49 100nF 1 21 V- V- C1- C2+ 20 2 C51 100nF GND C2- C3+ 4 24 SD EN C3- 22 CS3 100nF VDDMAIN R25 47K/DNP R26 0Ω TXD2 PA10 PAB 232 PAS 10Ω RTS2 PA14 P31 0Ω RTS2 PA15 P33 0Ω CTS2 VDDMAIN T1IN T1OUT T1N T2IN T2OUT T2N T3IN T3OUT T3N T3OUT 0Ω/34.47K VDDMAIN To Not Populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To not populate To notPopulation

3.5.2 Serial Port USART2 RS485

The USART2 is buffered with an Analog Devices ADM3485 RS-485/RS-422 transceiver and is connected to a 3-point jumper.

Features:

• One RS485 transceiver connected to RXD2, TXD2 and RTS2, CTS2
One 3-point connector
• Required resistors and capacitors

Figure 3-11. USART2 RS485 Schematic

RS 485 MN4 ADM3485ARZ VDDMAIN R23 10K R27 OR 1 PO VCC 8 FE GND 5 DE 6 DI A B 7 VDDMAIN C54 100nF JP14 JP16 R37 120R JP17 3.3K/DNP R39 VGDMAIN R24 3.3K/DNP Do Not Populate J4 1 2 3 FGND Do Not Populate PA9_485 PA9_232 JP15

3.5.3 Serial Port UART1 RS232

The UART1 is buffered with an Analog Devices ADM3312E RS-232 transceiver and is connected to the HE10 PIO port C. A classic implementation RS232 transceiver selection should include double source capability.

Features:

One RS232 transceiver connected to RXD (PC1) and TXD (PC0) only
• One HE10 male connector (PIO port C)
• Required resistors and capacitors

Figure 3-12. Serial Port Schematic

UART1 VDDMAIN C55 4.7µF C56 100nF C57 100nF MN5 ADM3312EARU VCC C1+ 6 C58 100nF V+ 20 2 C1- C2+ C59 100nF V- C2- C3+ 4 24 C61 100nF Do Not Populate VDDMAIN R43 47K/DNP R44 0P TXD1) PC0 R47 0P (RXD1) PC1 R46 0P H49 49K VDDMAIN R51 47K T1IN T1OUT 18 R1OUT R1IN 15 T2IN T2OUT 17 R2OUT R2IN 14 T3IN T3OUT 16 R3OUT R3IN 13 (TS232_TXD) 1 (RS232_RXD) 2 J5 HE10

3.6 Debug Interfaces

3.6.1 JTAG/ICE

The ATSAM4C-EK includes a JTAG interface port to provide debug level access to the system-on-chip. The JTAG port is a 20-pin, dual-row, 0.1-inch male connector. This port provides the required interface for in-circuit emulators such as the ARM Multi-ICE® and Atmel SAM-ICE™.

Features:

• One HE10 20-pin male connector
- Required resistors

Figure 3-13. JTAG/ICE Interface Schematic

VDDIN J11 2 4 6 8 10 12 14 16 18 20 1 3 5 7 9 11 13 15 17 19 R134 100K Ω R135 100K Ω R136 100KΩ R137 100KΩ R138 100KΩ PB0 (TDI) PB2 (TMS) PB3 (TCK) NRST (NRST) R146 OR/DNP Do Not Populate JP24 (TDO) {3,4} PB1 PB1 JP24 2 3 R149 100K Ω R148 33Ω PB27 TMP2 BP6 3 1 2 3 4

3.6.2 UART/USB Bridge Interface

The UART is connected to an interface USB through an FTDI FT232R (TTL to USB converter) device. RX and TX DBGU only are connected to the USB connector Micro AB.

Figure 3-14. DBGU/USB Bridge Schematic

USB Micro AB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200

3.7 Extend Interfaces

The SAMAC-EK embeds two connectors to interface Atmel IEEE 802.15.4-compliant wireless transceivers for ZigBee®-based applications.

Features:

• Atmel RZ600 module
  • Atmel REB233-XPRO module

3.7.1 RZ600 Interface

- The RZ600 interface connects with Atmel modules used for ZigBee communication platforms that are equipped with a 10-pin HE10 male connector.

Figure 3-15. RZ600 Interface Schematic

(ZB_RSTN) PA17 R66 0R 1 (ZB_IRQ1) PA12 R68 0R 3 (SPI0_NPCS0) PA5 R70 0R 5 (SPI0_MISO) PA6 R72 33R 7 9 J7 2 R67 0R PA11 4 R69 0R PA18 (ZB_IRQ0) 6 R71 33R PA7 (ZB_SLPTR) 8 R73 33R PA8 (SPI0_MOSI) 10 L4 220Ω at 100MHz JP18 VDDMAIN R70 to R73 should be close to SAM4C. C73 C74 C75 18pF 2.2nF 2.2μF

ZigBee

Table 3-4. RZ600 HE10 Pin Functions

Function	Pin		Pin	Function
Reset	1		2	IRQ0
Interrupt Request	3		4	SLP_TR
SPI Chip Select	5		6	SPI MOSI
SPI MISO	7		8	SPI CLK
Power Ground	9		10	Power Supply

3.7.2 REB233-XPRO Interface

The XPRO interface connects with new Atmel modules used for XPRO platforms that are equipped with a 20-pin HE14 male connector.

Figure 3-16. XPRO Interface Schematic

(ID_DATA) (ADC_0) (ADC_2) (PWM_0/RST_ZB) (PWM_2/IRQ) (TWI_SDA) (UART_RX) (SPI_SS_0) (SPI_MISO) PB23 R74 0R 1 J8 PA12 R75 0R 3 2 PA5 R77 0R 5 4 R76 0R PA4 (ADC_1) PB18 R79 0R 7 6 R78 0R PB13 (ADC_3) PA22 R81 0R 9 8 R80 0R PC7 (PWM_1) PA24 R83 0R 11 10 R82 0R PB15 (PWM_3/SLP_TR/SPI_SS_1) PB16 R85 0R 13 12 R84 0R PA25 (TWI_SCL) PB22 R87 0R 15 14 R86 0R PB17 (UART_TX) PB20 R89 0R 17 16 R88 0R PB19 (SPI_MOSI) 19 18 R90 0R PB21 (SPI_SCK) R84, R83 Should be close to SAM4C. XPRO Do Not Populate HE14 100-mil right angled male DNP VDDMAIN JP19 L5 220Ω at 100MHz C76 C77 C78 18pF 2.2nF 2.2μF XPRO

Table 3-5. XPRO HE10 Pin Functions

Function Pin Pin Function
Module Identity 1 2 Ground
ADC Input 3 4 ADC Input
ADC Input 5 6 ADC Input
ZigBit^TM Reset 7 8 PWM Output
IRQ Interrupt from ZigBit to Host Processor	9		10	SLP_TR wake-up signal to ZigBit
Two-Wire Data Line	11		12	Two-Wire Clock Line
UART RX Line	13		14	UART TX Line
SPI Chip Select	15		16	SPI MOSI
SPI MISO	17		18	SPI Clock
Power Ground	19		20	Power Supply

3.8 LCD Display

The ATSAM4C-EK board is equipped with one LCD segment interfaced with the SAM4C device through the LCD controller. Note that only certain segments (highlighted in blue in Figure 3-17 on page 18) are usable without using U11 and U12 analog switches or unpopulated 0 ohm resistors.

Features:

LCD segment YMCC42364AAANDCL (Anshan Yes Optoelectronics Display Co., Ltd.)

Figure 3-17. LCD Display Schematic

VDDMAIN C81 10µF C82 100µF R104 4.7K JP20 C2 R106R106 PA13 100R U9 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COM32 COM33 COM34 COM35 COM36 COM37 COM38 COM39 COM40 COM41 COM42 COM43 COM44 COM45 COM46 COM47 COM48 COM49 COM50 COM51 COM52 COM53 COM54 COM55 COM56 COM57 COM58 COM59 COM60 COM61 COM62 COM63 COM64 COM65 COM66 COM67 COM68 COM69 COM70 COM71 COM72 COM73 COM74 COM75 COM76 COM77 COM78 COM79 COM80 COM81 COM82 COM83 COM84 COM85 COM86 COM87 COM88 COM89 COM90 COM91 COM92 COM93 COM94 COM95 COM96 COM97 COM98 COM99 COM100 SEG_11 SEG_10 SEG_9 SEG_8 SEG_7 SEG_6 SEG_5 SEG_4 SEG_3 SEG_2 SEG_1 SEG_0 SEG_F39 SEG_30 SEG_21 SEG_12 SEG_02 SEG_93 SEG_84 SEG_75 SEG_66 SEG_57 SEG_48 SEG_39 SEG_30 SEG_21 SEG_12 SEG_03 SEG_94 SEG_85 SEG_76 SEG_67 SEG_58 SEG_49 SEG_300 SEG_211 SEG_122 SEG_033 SEG_95 SEG_86 SEG_77 SEG_68 SEG_59 SEG_4000A/AAANDCLAMMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMOS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/CMCS/ LED+ LED- -1.8.8:8.8 AM PM 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Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion Onion OniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOniOHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN OHN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPN CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NPP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFP CNTC NFO PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBN PBJP BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB BPTB

Figure 3-18. LCD Layout

COM3 COM2 COM1 SEMO SEC0 16 G0 G2 G3 G4 B4 B1 B0 D0 D1 D2 D3 B9 AM PM C V B13 B0 B2 B3 B4 B5 B6 ERROR G5 错误 G6 A0 A1 A2 A3 A4 A5 A6 B7 B8 G7 ARM Cortex™ -M4 SEC39 SEC12 a f g h i b j k e L m n c d 44 17

Table 3-6. LCD pinout vs Segment

Pin COM0 COM1 COM2 COM3 Pin COM0 COM1 COM2 COM3
1	-	-	-	C	O	M	3		2
2--COM2-24		A5-g	A5-j	A5-L A5-m
3	-	COM1	-	-	25	A4-h	A4-i	A4-k	A4-n
4	COM0	-	-	-	26	B6	A4-f	A5-e	A5-d
5	G1	G0	G2	G3	27	A4-a	A4-b	A4-c	B11
6	G4	G5	G6	G7	28	A4-g	A4-j	A4-L	A4-m
7	E0	E2	E4	E6	29	A3-h	A3-i	A3-k	A3-n
8	E1	E3	E5	E7	30	B4	A3-f	A3-e	A3-d
9	D3-a	D3-b	D3-c	B9	31	A3-a	A3-b	A3-c	B10
10	D3-f	D3-g	D3-e	D3-d	32	A3-g	A3-j	A3-L	A3-m
11	D2-a	D2-b	D2-c	D2-p	33	A2-h	A2-i	A2-k	A2-n
12	D2-f	D2-g	D2-e	D2-d	34	B3	A2-f	A2-e	A2-d
13	D1-a	D1-b	D1-c	D1-p	35	A2-a	A2-b	A2-c	B1
14	D1-f	D1-g	D1-e	D1-d	36	A2-g	A2-j	A2-L	A2-m
15	D0-a	D0-b	D0-c	D0-p	37	A1-h	A1-i	A1-k	A1-n
16	D0-f	D0-g	D0-e	D0-d	38	B2	A1-f	A1-e	A1-d
17	A6-h	A6-i	A6-k	A6-n	39	A1-a	A1-b	A1-c	B8
18	B14	A6-f	A6-e	A6-d	40	A1-g	A1-j	A1-L	A1-m
19	A6-a	A6-b	A6-c	B13	41	A0-h	A0-i	A0-k	A0-n
20	A6-g	A6-j	A6-L	A6-m	42	B0	A0-f	A0-e	A0-d
21	A5-h	A5-i	A5-k	A5-n	43	A0-a	A0-b	A0-c	B7
22	B5	A5-f	A5-e	A5-d	44	A0-g	A0-j	A0-L	A0-m

The SAM4C features a LM4040 precision micropower curvature-corrected bandgap shunt voltage reference with a several fixed reverse breakdown voltages. The device voltage reference on the board is 3.0V.

Figure 3-19. Analog Reference Schematic

VDDIN L1 56μH TP2 C22 2.2μF R8 2.2Ω C23 100nF C25 22μF 5V R7 RC0603JR-073K3L D1 LM4040AIM3X-3.0/NOPB C26 10μF C27 10nF +3V3 JP5 +3V VDDREF TP3 C28 100nF ADVREF

3.9.2 Analog Input

One potentiometer VR1 multi-turn 10K Ω is connected to the jumper JP4. If JP4 is closed, this analog reference is available on analog input PA4.

Figure 3-20. Analog Input Schematic

VDDIN 3 VR1 10K 2 (Analog input) JP4 PA4 C21 10nF

3.9.3 Temperature Sensor

The Atmel AT30TS75 temperature sensor converts temperatures from -40^ to +125^ to a digital word and provides a typical accuracy of ±0.5^ over the operating temperature range of 0^ to +85^ . The device is factory calibrated and requires no external components to help provide a cost effective solution. To reduce current consumption and save power, the AT30TS75 features a shutdown mode that turns off all internal circuitry except for the internal power-on reset and serial interface circuits. In addition, the device features a power saving one-shot mode that allows the device to make a temperature measurement and update the temperature register and then return to shutdown mode.

Device slave address byte: 0x48.

Figure 3-21. Temperature Sensor Schematic

VDDMAIN VDDMAIN R53 4.7K/DNP Do Not Popolare R55 0R U6 7 6 5 4 A0 VCC A1 ALERT A2 SCL GND SDA AT30TS75 ADDR:0X48 8 3 2 1 C65 100nF R54 10K PA26 PA25 (SCL) PA24 (SDA)

3.10 CryptoAuthentication (optional)

The Atmel ATSHA204 is a member of the Atmel CryptoAuthentication family of high-security hardware authentication devices.

It has a flexible command set that allows use for many applications, such as Anti-counterfeiting, Protection for Firmware or Media, Session Key Exchange, Secure Data Storage or User Password Checking.

Device slave address byte: 0xC9.

Figure 3-22. CryptoAuthentication Schematic

Do Not Populate (SCL) PA25 (SDA) PA24 VDDMAIN C63 100nF U5 6 5 8 4 SCL NC1 SDA NC2 VCC NC3 GND NC4 ATSHA204-SH ADDR: 0XC9 DNP 1 2 3 7

3.11 LEDs and Buttons

The ATSAM4C-EK is equipped with two user push buttons and three LEDs.

3.11.1 Discrete LEDs

Indicators on the main board include three discrete LEDs:

• 1 blue LED connected to a PIO
• 1 amber LED connected to a PWM output
• 1 green LED connected to a PWM output

Figure 3-23. Debug Discrete LED Schematic

VDDIN D8 D9 Q10 BLUE AMBER GREEN R125 R126 R127 4700 4700 4700 LED PWM PD8 PWM PD7 PC8

3.11.2 Push Buttons

The EK board is equipped with four system push buttons and two user push buttons. The push buttons consist of momentary push button switches mounted directly to the board. When any switch is depressed it will cause a low (zero) to appear at the associated input pin.

• System push buttons:
• NRST (Reset, perform system reset)
• FWPU (Force Wake-Up)
- TMP0 (Tamper)
- TMP2 (Tamper)

- User push buttons:

It is possible to select the pull-up level for Tamper TMP0 pin. By selecting PB1 instead of VDDBU, it allows to end user a dynamic tampering synchronized with RTCOUT pin. It allows a diminution of the power consumption when the button is pressed (divided by the Duty Cycle applied on RTCOUT Output signal).

It is possible to use the TMP2 Push Button as another Tamper input. By using this feature, the end user must use JTAG in 2-wire mode (SWIO and SWD) due to the loss of the TDO pin. In this case TMP2 is pull-up at RTCOUT Level (PB1 pin) and can be managed dynamically synchronized with the RTCOUT pin.

3.12 Miscellaneous I/O

This board is equipped with additional I/O connectors which allow the measurements of specific points are allow the connection of an additional extension board.

Figure 3-25. PIO A and PIO B Extension I/O Connectors Schematic

5V JP21 VDDMAIN 3 1 J10 1 2 4 PA0 5 6 PA16 PA1 7 8 PA17 PA18 PA19 PA20 PA21 PA22 PA23 PA24 PA25 PA26 PA27 PA28 PA29 PA30 PA31 VDDMAIN VDDMAIN VDDMAIN H128 to H130 should be close to SAM4C. 5V JP22 VDDMAIN 3 1 J9 1 2 3 4 PB0 5 6 PB18 PB19 PB20 PB318 PB319 PB320 PB321 PB322 PB323 PB324 PB325 PB326 PB327 PB328 PB329 PB330 PB331 VDDMAIN

3.13 Metrology Core Serial Interface

This board includes an additional connector which allows connecting to an external board through the SPI 1 port.

Figure 3-26. Connector Schematic

VDDMAIN JP23 J12J12 1 2 3 4 R141 QR PC0PC0 PC3 R139 27R R140 27R PC1 (RXD1) 5 6 R142 QR PC6 (RXD1) 7 8 9 10 11 12 R145 27B PA29 (MCLK) 13 14 PIOsense

3.14 PIO Usage

3.14.1 PIO Port A Pin Assignments

Table 3-8. PIO Port A Pin Assignments

I/O Line	Peripheral			Extra Function	System Function Reset State UsingA	B
PA0 RTS3	PCK2 A10 COM0	WKUP5				LCD Com
PA1 CTS3	NCS1 A9 COM1	-LCD Com
PA2 SCK3	NCS2 A8 COM2	-LCD Com
PA3 RXD3	NCS3 A7 COM3	WKUP6	LCD Com
PA4 TXD3	-	A6 COM4/AD1	-Analog input
PA5 SPI0	NPCS0	-A5 COM5/AD2 - SerFlash / NPCS
PA6 SPI0	MISO	-A4 SEG0	-ZigBee
PA7 SPI0	MOSI	-A3 SEG1	-ZigBee
PA8 SPI0	SPCK	-A2 SEG2	-ZigBee
PA9 RXD2	-	A1 SEG3	WKUP2		RS232/485
PA10	TXD2	-	A0/NBS0	SEG4	-	RS232/485
PA11	RXD1	-	A23	SEG5	WKUP9	ZigBee / IRQ0
PA12	TXD1	-	A22-NCLE	SEG6/AD0	-	ZigBee/IRQ1/IRTC
PA13	SCK2	TIOA0	A21-NALE	SEG7	-	Backlight On/off
PA14	RTS2	TIOB0	A20	SEG8	WKUP3	RS232/485
PA15	CTS2 TIOA4	A19 SEG9	-RS232/485
PA16	SCK1 TIOB4	A18 SEG10	-MuxLCD
PA17	RTS1	TCLK4	A17	SEG11	WKUP7	ZigBee / RST
PA18	CTS1	TIOA5	A16	SEG12	-	ZigBee / SLPTR
PA19	RTS0	TCLK5	A15	SEG13	WKUP4	PB ScrUp
PA20	CTS0 TIOB5	A14 SEG14	-PB ScrDwn
PA21	SPI0_NPCS1	-	A13	SEG15	-	ZigBee / NPCS
PA22	SPI0_NPCS2	-	A12	SEG16	-	ZigBit / IRQ
PA23	SPI0_NPCS3	-	A11	SEG17	-	-
PA24	TWD0	-	A10	SEG18	WKUP1	TWI / ZigBit
PA25	TWCK0	-	A9	SEG19	-	TWI / ZigBit
PA26	CTS4 -	A8 SEG20	--
PA27	-	-	NCS0	SEG21	-	-
PA28	-	-	NRD	SEG22	-	-
PA29	PCK1	-	NWAIT	SEG23	-	MCLK (ATSense)
PA30	PCK1	-	A15	-	XOUT	XOUT
PA31	PCK0	-	A14	-	XIN	XIN

3.14.2 PIO Port B Pin Assignments

Table 3-9. PIO Port B Pin Assignments

I/O Line	Peripheral			Extra Function	System Function Reset State UsingA	B
PB0 TWD1 -- - TDI						-
PB1 TWCK1 -- - RTCOUT0 TDO/TRACESWO -
PB2	-	-	-	-	TMS/SWDIO	-
PB3	-	-	-	-	TCK/SWCLK	-
PB4 URXD0 TCLK0 A17 - WKUP8					PIO, I, PU, ST	DBGU
PB5 UTXD0 - A16 --					DBGU
PB6 -- D0 SEG24 -					-
PB7	TIOA1	-	D1	SEG25	-	-
PB8	TIOB1	-	D2	SEG26	-	-
PB9	TCLK1	-	D3	SEG27	-	-
PB10	TIOA2	-	D4	SEG28	-	-
PB11	TIOB2	-	D5	SEG29	-	-
PB12	TCLK2	-	D6	SEG30	-	-
PB13	PCK0	-	D7	SEG31/AD3	-	-
PB14	-	-	NWR0-NWE	SEG32	-	-
PB15	-	-	NWR1-NBS1	SEG33	-	ZigBit / SLPTR
PB16	RXD0	-	D8	SEG34	WKUP10	ZigBit / RXD
PB17	TXD0	-	D9	SEG35	-	ZigBit / TXD
PB18	SCK0	PCK2	D10	SEG36	-	ZigBit / RST
PB19	RXD4	-	D11	SEG37	-	ZigBit / MOSI
PB20	TXD4	-	D12	SEG38	-	ZigBit / MISO
PB21	SCK4	NANDOE	D13	SEG39	WKUP11	ZigBit / SPCK
PB22	RTS4	NANDWE	D14	SEG40	-	ZigBit / NPCS
PB23	ADTRG	-	D15	SEG41/AD4	-	-
PB24	TIOA3	-	A7	SEG42	-	-
PB25	TIOB3	-	A6	SEG43	-	-
PB26	TCLK3	-	A5	SEG44	WKUP13	-
PB27	-	-	A4	SEG45	WKUP14	-
PB28	-	-	A3	SEG46	WKUP15	-
PB29	-	-	A2	SEG47	-	-
PB30	-	-	A1	SEG48	-	-
PB31	-	-	A0-NBS0	SEG49/AD5	-	-

3.14.3 PIO Port C Pin Assignments

Table 3-10. PIO Port C Pin Assignments

I/O Line	Peripheral			Extra Function	System Function Reset	Set State UsingA	B
PC0 UTXD1	PWM0 - - - - -
PC1 URXD1	PWM1 WKUP12 - - - -
PC2 SPI1_	NPCS0 PWM2 - - - -
PC3 SPI1_	MISO PWM3 - - - -
PC4 SPI1_	MOSI - - - -
PC5 SPI1_	SPCK - - - -
PC6 PWM0	SPI1_NPCS1	- - - - LED Green
PC7 PWM1	SPI1_NPCS2	- - - - LED Amber
PC8 PWM2	SPI1_NPCS3	- - - - LED Blue
PC9 PWM3	- - - - ERASE	- Jumper Erase

3.15 Connectors

3.15.1 Power Supply Connector

The ATSAM4C-EK is equipped with an ACDC wall adapter that can be connected to a J2 connector (described below). The maximum input voltage that can be applied on this connector must be lower than 6V.

Figure 3-27. Power Supply Connector

Close-up of a black electronic component with three labeled parts (1, 2, 3), no visible text or symbols beyond labels.

Table 3-11. Power Supply Connector Pinout

Pin Signal Name Description
1 +5V Wall Adapter Main Voltage
2 NC Floating Point
3 GND Ground

3.15.2 JTAG/ICE Connector

Figure 3-28. JTAG/ICE Connector

2 4 6 8 10 12 14 16 18 20 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1 3 5 7 9 11 13 15 17 19

Table 3-12. JTAG/ICE Connector Pinout

Pin Signal	Name Description
4, 6, 8, 10, 12, 14, 16, 18, 20	GND Common ground
1 VTref 3	3V power	This is the target reference voltage. It is used to check if the target has power, to create the logic-level reference for the input comparators, and to control the output logic levels to the target. It is normally fed from VDD on the target board and must not have a series resistor.
2 Vsupply	3.3V power	This pin is not connected in SAM-ICE. It is reserved for compatibility with other equipment. Connect to VDD or leave open in target system.
3 nTRST	TARGET RESET	JTAG Reset (active-low output signal that resets the target). Output from SAM-ICE to the Reset signal on the target JTAG port. Typically connected to nTRST on the target CPU. This pin is normally pulled HIGH on the target to avoid unintentional resets when there is no connection.
5 TDI TEST DATA INPUT		JTAG data input of target CPU (serial data output line, sampled on the rising edge of the TCK signal). It is recommended that this pin is pulled to a defined state on the target board. Typically connected to TDI on target CPU.
7 TMS TEST MODE SELECT		JTAG mode set input of target CPU. This pin should be pulled up on the target. Typically connected to TMS on target CPU. Output signal that sequences the target's JTAG state machine, sampled on the rising edge of the TCK signal.
9 TCK TEST CLOCK		JTAG clock signal to target CPU (output timing signal, for synchronizing test logic and control register access). It is recommended that this pin is pulled to a defined state on the target board. Typically connected to TCK on target CPU.
11 RTCK		Input Return test clock signal from the target.Some targets must synchronize the JTAG inputs to internal clocks. To assist in meeting this requirement, a returned and retimed TCK can be used to dynamically control the TCK rate. SAM-ICE supports adaptive clocking which waits for TCK changes to be echoed correctly before making further changes. Connect to RTCK if available, otherwise to GND
13	TDO JTAG TEST DATA OUTPUT	JTAG data output from target CPU (serial data input from the target). Typically connected to TDO on target CPU.
15	nSRST RESET	Active-low reset signal. Target CPU reset signal
17	RFU	This pin is not connected in SAM-ICE
19	RFU	This pin is not connected in SAM-ICE

3.15.3 RS232 Connector

Figure 3-29. RS232 Connector

1 2 3 4 5 6 7 8 9

Table 3-13. RS232 Connector Pinout

Pin Signal Name Description
1, 4, 6, 9 NC	Not Connected
2 RXD RS232 Serial Data Output Signal
3 TXD RS232 Serial Data Input Signal
5 GND Common Ground
7 RTS Request To Send - Not Used
8 CTS Clear To Send - Not Used

3.15.4 UART/USB Micro AB

Figure 3-30. Micro AB USB Connector

1 2 3 4 5 6-7 8-9 MICRO AB

Table 3-14. Micro AB USB Connector Pinout

Pin Signal Name Description
1 VBUS	5V Power
2 DM Data Minus
3 DP Data Plus
4 ID On	The Go Identification
5 GND	Common Ground
6, 7, 8, 9 Shield Mechanical Pins

3.15.5 RZ600 IEEE 802.15.4 Wireless Transceiver Socket J12

Figure 3-31. Socket J12

2 4 6 8 10 ● ● ● ● ● ● ● ● ● ● 1 3 5 7 9

Table 3-15. Socket Pinout

Function Signal	Name Pin	Pin Signal Name Function
Reset /RST 1 2	IRQ0 Interrupt Request
Interrupt Request IRQ1 3 4 SLP_TR				SLP_TR
SPI Chip Select	/CS		5	6	MOSI	SPI MOSI
SPI MISO	MISO		7	8	SCLK	SPI CLK
Power Supply	GND		9	10	VCC	VCC

3.15.6 I/O Expansion Port

Figure 3-32. Expansion Port J9 & J10

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39

Table 3-16. Expansion Port J9 Pinout

Function Signal	Name Pin	Pin Signal Name Function
3.3V or 5V – 1 2 –	3.3V or 5V
Ground GND 3 4	GND	Ground
-	PB0	5		6	PB16	-
-	PB1	7		8	PB17	-
-	PB2	9		10	PB18	-
-	PB3	11		12	PB19	-
-	PB4	13		14	PB20	-
-	PB5	15		16	PB21	-
-	PB6	17		18	PB22	-
-	PB7	19		20	PB23	-
-	PB8	21		22	PB24	-
-	PB9	23		24	PB25	-
-	PB10	25		26	PB26	-
-	PB11	27		28	PB27	-
-	PB12	29		30	PB28	-
-	PB13	31		32	PB29	-
-	PB14	33		34	PB30	-
-	PB15	35		36	PB31	-
Ground	GND	37		38	GND	Ground
Power Supply	VDDMAIN	39		40	VDDMAIN	Power Supply

Table 3-17. Expansion Port J10 Pinout

Function	Signal Name	Pin		Pin	Signal Name	Function
3.3V or 5V – 1 2 –	3.3V or 5V
Ground GND 3 4	GND	Ground
-	PA0	5		6	PA16	-
-	PA1	7		8	PA17	-
- PA2 9 10 PA18 -
-	P	A			3	1
- PA4 13	14 PA20 -
- PA5 15	16 PA21 -
- PA6 17	18 PA22 -
- PA7 19	20 PA23 -
- PA8 21	22 PA24 -
- PA9 23	24 PA25 -
-	PA10	25		26 PA26 -
-	PA11	27		28 PA27 -
-	PA12	29		30 PA28 -
-	PA13	31		32 PA29 -
-	PA14	33		34 PA30 -
-	PA15	35		36 PA31 -
Ground	GND	37		38	GND	Ground
Power Supply	VDDMAIN	39		40	VDDMAIN	Power Supply

Figure 3-33. Expansion Port J12

2 4 6 8 10 12 14 ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1 3 5 7 9 11 13

Table 3-18. Expansion Port J12 Pinout

PIO	Power	Pin		Pin	Power	PIO
-	3.3V	1		2	3.3V	-
PC2	-	3		4	-	PC0
PC3	-	5		6	-	PC1
PC4	-	7		8	-	PC6
PC5	-	9		10	-	PC7
PC8	-	11		12	-	PA29
-	GND	13		14	GND	-

4. Evaluation Kit Firmware Demonstration

4.1 ATSAM4C-EK Default Application

The ATSAM4C-EK is delivered with a preprogrammed default application in SAM4C Flash memory. This application implements SAM4C embedded peripherals and external (on-board) peripherals as detailed in the table below.

Table 4-1.

SAM4C Embedded Peripheral Connected to External (on-board) Peripheral
Real-Time Clock (RTC) —
Anti-Tamper BP3 Push Button
Two-wire Interface Temperature Sensor AT30TS75
Segmented LCD Custom Atmel Display
SAM4C Core 1 —
10-bit ADC Internal ADC channel connected to Battery Backup Power Rail (VDDBU)

After the first power-up without the backup battery, the time (hour and minute) of the RTC can be configured. The Hour and Minute settings are entered using the following push buttons:

BP4 (SCROLL-UP)—sets the Hour (24H mode entries must be made)
BP5 (SCROLL-DOWN)—sets the Minute
BP6 (TMP2)—saves the Hour and Minute settings

Once the time settings have been saved, BP4 (SCROLL-UP) can be used to toggle the Hour display between 12H or 24H mode.

Note: RTC time configuration can be skipped by pressing BP6.

Once the Hour and Minute have been configured, the main application on core 0 runs in an infinite loop, repeating the following steps:

• Every second, the time is displayed with colon (:) icon blinking
• Every fifteen (15) seconds, the VDDBU pin voltage is measured and displayed ^(1)
• Every thirty (30) seconds, the temperature (using the AT30TS75) is measured and displayed in °C and in °F.

Note: 1. On the ATSAM4C-EK, the voltage measured is the VDDIO voltage minus the forward voltage of the diode in the BAT54C (D4).

At startup, the main application configures the core 1 subsystem to run a CoreMark algorithm from the core 1 SRAM memories (SRAM1 and SRAM2). Once the CoreMark is finished, the result of the CoreMark (number of CoreMark/MHz) is passed to the main application using the inter-processor communication embedded in the SAM4C. Once the result is retrieved by the main application, the result of the CoreMark is displayed and the CoreMark algorithm running on core 1 is restarted. An ammeter connected either on JP12 (VDDIN) or on JP6 (VDDCORE) can measure the active current consumption of both cores.

4.2 Measuring the Backup mode current consumption on VDDBU

The SAM4C has an ultra-low-power mode RTC and Supply controller allowing less than 1 A (typical) on VDDBU, with the following functions/peripherals configuration:

• 32.768 kHz Crystal Oscillator enabled
• POR backup on VDDBU disabled
- RTC running
• RTT enabled on 1 Hz mode
• Force wake-up (FWUP) enabled
• Anti-tamper Input (TMP0) enabled

To measure the current consumption on VDDBU when in backup mode, JP9 (Shutdown control) must be opened and an ammeter connected on JP8 (VDDBU) as described in the following procedure:

1. Power off the board using SW1
2. Insert the 3V lithium battery provided in the battery holder
3. Place an ammeter (with sufficient capacity to measure current lower than 1μA) on JP8
4. Power on the board using SW1
5. (optional) Set the RTC as described above
6. Press the push button BP5 (SCROLL-DOWN) to place the board in low-power mode

Before shutdown, the following messages are displayed on the LCD:

"ENTERING BACKUP MODE"

"PRESS FWUP BP1 TO WAKE UP"

"USE BP3 TO GENERATE TAMPER EVENTS"

Blinking "BYE"

At this point, the current consumption on the ammeter should be less than 1 A @ 25^ @ 3V.

Once in backup mode, the Anti-tamper pin 0 (TMP0) is enabled. BP3 (TMP0) push button can be used to generate tamper events before waking up the board. Tamper events are registered without waking up the board. Up to 15 tamper events can be registered. To wake up the board, press BP1 (FWUP). Upon start-up, the number of tamper events and time-stamping of the tamper events are displayed on the LCD.

5. ATSAM4C-EK Design Files

5.1 ATSAM4C-EK Schematics

This section contains the schematics for the SAM4C Evaluation Kit (Rev. C).

• Main page with Block Diagram
• Information regarding the design
SAM4C Microcontroller and its crystals, decoupling capacitors and analog inputs
• Power Supplies Distribution
RS232, RS485 and DBGU Interfaces, TWI Memories, and Temperature Sensor
- Custom Glass LCD and ZigBee, XPRO interfaces
- User Buttons, I/O expansion headers and JTAG Interfaces

Figure 5-1. ATSAM4C-EK Schematic (Page 1 of 7)

graph TD
    A["5 V DC Input 1.3mm/Jack"] --> B["POWER SUPPLY LED"]
    B --> C["ATMEL Cortex M4 SAM4C16CA-AU LQFP100"]
    C --> D["ZIGBEE INTERFACE"]
    C --> E["XPRO INTERFACE"]
    C --> F["FLASH ON SPI"]
    C --> G["LCM Segment LCD"]
    C --> H["LEDS 3 LEDs"]
    C --> I["User_PB 6 PushButtons"]
    C --> J["JTAG 20PINS"]
    C --> K["INTERFACE PIOA,B,C"]
    C --> L["Sheet 6"]
    C --> M["Sheet 7"]
    N["5 V DC Input 1.3mm/Jack"] --> O["POWER SUPPLY LED"]
    P["5 V DC Input 1.3mm/Jack"] --> Q["POWER SUPPLY LED"]
    R["5 V DC Input 1.3mm/Jack"] --> S["POWER SUPPLY LED"]
    T["5 V DC Input 1.3mm/Jack"] --> U["POWER SUPPLY LED"]
    V["5 V DC Input 1.3mm/Jack"] --> W["POWER SUPPLY LED"]
    X["5 V DC Input 1.3mm/Jack"] --> Y["POWER SUPPLY LED"]
    Z["5 V DC Input 1.3mm/Jack"] --> AA["POWER SUPPLY LED"]
    AB["5 V DC Input 1.3mm/Jack"] --> AC["POWER SUPPLY LED"]
    AD["5 V DC Input 1.3mm/Jack"] --> AE["POWER SUPPLY LED"]
    AF["5 V DC Input 1.3mm/Jack"] --> AG["POWER SUPPLY LED"]
    AH["5 V DC Input 1.3mm/Jack"] --> AI["POWER SUPPLY LED"]
    AJ["5 V DC Input 1.3mm/Jack"] --> AK["POWER SUPPLY LED"]
    AL["5 V DC Input 1.3mm/Jack"] --> AM["POWER SUPPLY LED"]
    AN["5 V DC Input 1.3mm/Jack"] --> AO["POWER SUPPLY LED"]
    AP["5 V DC Input 1.3mm/Jack"] --> AQ["POWER SUPPLY LED"]
    AR["5 V DC Input 1.3mm/Jack"] --> AS["POWER SUPPLY LED"]
    AT["5 V DC Input 1.3mm/Jack"] --> AU["POWER SUPPLY LED"]
    AV["5 V DC Input 1.3mm/Jack"] --> AW["POWER SUPPLY LED"]
    AX["5 V DC Input 1.3mm/Jack"] --> AY["POWER SUPPLY LED"]
    AZ["5 V DC Input 1.3mm/Jack"] --> BA["POWER SUPPLY LED"]
    BB["5 V DC Input 1.3mm/Jack"] --> BC["POWER SUPPLY LED"]
    BD["5 V DC Input 1.3mm/Jack"] --> BE["POWER SUPPLY LED"]
    BF["5 V DC Input 1.3mm/Jack"] --> BG["POWER SUPPLY LED"]
    BH["5 V DC Input 1.3mm/Jack"] --> BH1["POWER SUPPLY LED"]
    BI["5 V DC Input 1.3mm/Jack"] --> BJ["POWER SUPPLY LED"]
    BK["5 V DC Input 1.3mm/Jack"] --> BL["POWER SUPPLY LED"]
    BM["5 V DC Input 1.3mm/Jack"] --> BN["POWER SUPPLY LED"]
    BO["5 V DC Input 1.3mm/Jack"] --> BP["POWER SUPPLY LED"]
    BQ["5 V DC Input 1.3mm/Jack"] --> BR["POWER SUPPLY LED"]
    BS["5 V DC Input 1.3mm/Jack"] --> BS["POWER SUPPLY LED"]
    BT["5 V DC Input 1.3mm/Jack"] --> BT1["POWER SUPPLY LED"]
    BU["5 V DC Input 1.3mm/Jack"] --> BV["POWER SUPPLY LED"]
    BW["5 V DC Input 1.3mm/Jack"] --> BX["POWER SUPPLY LED"]
    BY["5 V DC Input 1.3mm/Jack"] --> BY1["POWER SUPPLY LED"]
    CA["5 V DC Input 1.3mm/Jack"] --> CB["POWER SUPPLY LED"]
    CC["5 V DC Input 1.3mm/Jack"] --> CD["POWER SUPPLY LED"]
    CE["5 V DC Input 1.3mm/Jack"] --> CF["POWER SUPPLY LED"]
    CG["5 V DC Input 1.3mm/Jack"] --> CH["POWER SUPPLY LED"]
    CI["5 V DC Input 1.3mm/Jack"] --> CJ["POWER SUPPLY LED"]
    CK["5 V DC Input 1.3mm/Jack"] --> CL["POWER SUPPLY LED"]

Figure 5-2. ATSAM4C-EK Schematic (Page 2 of 7)
JUMPER AND SOLDERDROP

PAGE	REFERENCE	DEFAULT	FUNCTION
3	JP1JP2JP3JP4 CLOSE Connect AD input from potentiometer.JP5	OPENOPEN Close for JTAG boundary scan manufacturing test or Fast flash programming mode.Close to select JTAG.OPEN1-2	Close to reinitialize the Flash contents and some of its NVM bits.
	JP6,JP7,JP8	CLOSE Respective Power connection.JP9 CLOSE Close to unable Power supply with SHDN command.JP10	OPEN Use Back-up Balter to supply RTC Power.JP11,JP12

PIO MUXING
DEFAULT NO POPULATE PARTS

PAGE	REFERENCE	FUNCTION
3	R1,R2	Expansion IO Interface.
	R10	External clock resource input.
4	R24,R38	RS485 Pull-up and Pull-down Resistor.
5	R39,R40	Change EEPROM I2C Address.
	R53	Change Temperature Sensor I2C Address.
	R60	PowerUp to Reset FT232RL.
	R64	When USB suspend is HIGH level

LIST OF CHANGES

REVB => REVC	1	Update XPRO interface (Change J8 ZigBit HE14 right angled male DNP)
	2	R3 DNP
	3	Add TMP2
	4 Push button TMP0, add pull up VDDBU

SCHEMATICS CONVENTIONS

(1)Resistance Unit:"K"Is"Kohm","R"Is"Ohm".

(2)"DNP"means the component is not populated by default.

TEST POINT

PAGE	REFERENCE	FUNCTION
3	TP1	VDDLCD
	TP2	VDDREF_P
	TP3	VDDREF
4	TP4	5V
	TP5	VDDCORE
	TP6	VDDPLL
	TP7	3V3
	TP8	VDDBU
	TP9	RTC_32
	TP10	VDDMAIN
	TP11	VDDIN
	TP12	VDDIO
	TP13 to TP17	GND

REVISION HISTORY

REV	DATA	NOTE
A 2012.10 Original released
B 2013.1		Modify LCD circuit
C	2013.4	Update XPRO Interface/Add TMP2

TABLE OF CONTENTS

PAGE	DESCRIPTION
1 Block Diagram
	Reference guide2
	Microcontroller,AD3
4	Power,RTC
	RS232,RS485,USB,EEPROM,
5	Temperature Sensor,Crypto Authentication
6	LCD,FLASH,ZIGBEE,ZIGBIT
	LED,Button,IO Expansion,JTAG7

Figure 5-3. ATSAM4C-EK Schematic (Page 3 of 7)

ATMEL Cortex-M4 Processor SAM4C16CA-AU LQFP100 LQFP100 SOCKET Do Not Populate VDDN VDDOUT VDDOPEL VDDPLL VDDLCD VDDCD VDDCU VDDN VDDOUT VDDOPEL VDDPLL VDDLCD VDDCD VDDCU VDDN VDDOUT VDDOPEL VDDPLL VDDLCD VDDCD VDDCU VDDN VDDOUT VDDOPEL VDDPLL VDDLCD VDDCD VDDCU VDDN VDDOUT VDDOPEL VDDPLL VDDLCD VDDCD VDDCU VDDO VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDI VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDIN VDDINO VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE VDOLOELE

Figure 5-4. ATSAM4C-EK Schematic (Page 4 of 7)

VOUT = 0.8 x (1 + Rtop/Rbottom) POWER LED 3V3 POWER VOUT 200-201 C25 C30 C35 C41 C42 VDDOUT TP5 VDDCORE L2 TP6 VDDNL C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 VDDBU D7 VDDIN RT1 TP8 R13 2.2F R21 2.2F/DVD C24 2.2F C25 2.2F C26 2.2F C27 2.2F C28 2.2F C29 2.2F C30 2.2F C31 2.2F C32 2.2F/DVD C33 2.2F C34 2.2F C35 2.2F C36 2.2F C37 2.2F C38 2.2F C39 2.2F C40 2.2F C41 2.2F C42 2.2F C43 2.2F C44 2.2F C45 2.2F C46 2.2F C47 2.2F C48 2.2F C49 2.2F C50 2.2F VDDOUT TP5 VDDCORE JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 JP14 JP15 JP16 JP17 JP18 JP19 JP20 JP21 JP22 JP23 JP24 JP25 JP26 JP27 JP28 JP29 JP30 JP31 JP32 JP33 JP34 JP35 JP36 JP37 JP38 JP39 JP40

Figure 5-5. ATSAM4C-EK Schematic (Page 5 of 7)

Circuit schematic diagram of ATmel microcontroller with labeled components including USB, RS, UART, and DBGU/USB Brige ICs.

Figure 5-6. ATSAM4C-EK Schematic (Page 6 of 7)

ZIGBEE COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 COM16 COM17 COM18 COM19 COM20 COM21 COM22 COM23 COM24 COM25 COM26 COM27 COM28 COM29 COM30 COM31 COM32 COM33 COM34 COM35 COM36 COM37 COM38 COM39 COM40 COM41 COM42 COM43 COM44 COM45 COM46 COM47 COM48 COM49 COM50 COM51 COM52 COM53 COM54 COM55 COM56 COM57 COM58 COM59 COM60 COM61 COM62 COM63 COM64 COM65 COM66 COM67 COM68 COM69 COM70 COM71 COM72 COM73 COM74 COM75 COM76 COM77 COM78 COM79 COM80 COM81 COM82 COM83 COM84 COM85 COM86 COM87 COM88 COM89 COM90 COM91 COM92 COM93 COM94 COM95 COM96 COM97 COM98 COM99 COM100 COM101 COM102 COM103 COM104 COM105 COM106 COM107 COM108 COM109 COM110 COM111 COM112 COM113 COM114 COM115 COM116 COM117 COM118 COM119 COM120 COM121 COM122 COM123 COM124 COM125 COM126 COM127 COM128 COM129 COM130 COM131 COM132 COM133 COM134 COM135 COM136 COM137 COM138 COM139 COM140 COM141 COM142 COM143 COM144 COM145 COM146 COM147 COM148 COM149 COM150 COM151 COM152 COM153 COM154 COM155 COM156 COM157 COM158 COM159 COM160 COM161 COM162 COM163 COM164 COM165 COM166 COM167 COM168 COM169 COM170 COM171 COM172 COM173 COM174 COM175 COM176 COM177 COM178 COM179 COM180 COM181 COM182 COM183 COM184 COM185 COM186 COM187 COM188 COM189 COM190 COM191 COM192 COM193 COM194 COM195 COM196 COM197 COM198 COM199 COM200

Figure 5-7. ATSAM4C-EK Schematic (Page 7 of 7)

USER INTERFACE FWUP NRST TMP0 Scroll up Scroll down JTAG/ICE INTERFACE TMP2 VDDU JP56 VCCBU R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R160 R161 R162 R163 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173 R174 R175 R176 R177 R178 R179 R180 R181 R182 R183 R184 R185 R186 R187 R188 R189 R190 R191 R192 R193 R194 R195 R196 R197 R198 R199 R200 VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN VDDUIN LDAI 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200mA 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200A 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200B 200C 20C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2C 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D 2D C: PLSI-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-S: PLSI-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSS-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SSs: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSI-SC: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSl: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSi: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PLSj: PFSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< img src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDSk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |< image src="">PDTk |

5.2 ATSAM4C-EK Layout

This section contains the layout graphics for the SAM4C Evaluation Kit (Rev. C).

• Layer 1: Top Layer (Figure 5-8 on page 45)
• Layer 2: Ground Layer (Figure 5-9 on page 46)
• Layer 3: Internal Signals 1 (Figure 5-10 on page 47)
• Layer 4: Internal Signals 2 (Figure 5-11 on page 48)
• Layer 5: Power Supplies (Figure 5-12 on page 49)
• Layer 6: Bottom Layer (Figure 5-13 on page 50)
• TOP Components Placement (Figure 5-14 on page 51)
• BOTTOM Components Placement (Figure 5-15 on page 52)

Figure 5-8. ATSAM4C-EK Layout: Top Layer

Green printed circuit board with integrated circuits and traces, no readable text or symbols

Figure 5-9. ATSAM4C-EK Layout: Ground Layer

Red printed circuit board with various electronic components and traces (no readable text or symbols)

Figure 5-10. ATSAM4C-EK Layout: Internal Signals 1 Layer

Close-up of a purple printed circuit board with visible traces and pads (no text or symbols)

Figure 5-11. ATSAM4C-EK Layout: Internal Signals 2 Layer

Blue printed circuit board pattern with various traces and pads (no text or symbols)

Figure 5-12. ATSAM4C-EK Layout: Power Supplies Layer

Close-up of a printed circuit board with traces and pads (no readable text or symbols)

Figure 5-13. ATSAM4C-EK Layout: Bottom Layer

Red printed circuit board with various traces and components, no visible text or symbols

Figure 5-14. ATSAM4C-EK Layout: TOP Components Placement

ATmel SAM4C-EK REVC CE

Figure 5-15. ATSAM4C-EK Layout: BOTTOM Components Placement

Circuit board layout diagram with component labels and pin connections

6. Revision History

Table 6-1. Revision History

Doc. Rev. Date Changes
A 16-Dec-2013 First issue

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