Atmel AT91SAM7A3-EK User Manual Download Page 12

Board Description

3-4

AT91SAM7A3-EK Evaluation Board User Guide

6165C–ATARM–26-Jun-06

3.2

AT91SAM7A3 
Block Diagram

Figure 3-1.  Block Diagram

TF0
TK0
TD0
RD0
RK0
RF0

TCLK0
TCLK1
TCLK2
TIOA0
TIOB0
TIOA1
TIOB1

TIOA2
TIOB2

CANRX0
CANTX0

CANRX1
CANTX1

TF1
TK1
TD1
RD1
RK1
RF1

TCLK3
TCLK4
TCLK5
TIOA3
TIOB3
TIOA4
TIOB4

TIOA5
TIOB5

TCLK6
TCLK7
TCLK8
TIOA6
TIOB6
TIOA7
TIOB7

TIOA8
TIOB8

TWD
TWCK

PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7

DDM
DDP

TDI

TDO
TMS

TCK

Peripheral Bridge

Peripheral Data

Controller

SRAM

32K Bytes

ARM7TDMI 

Processor

ICE

JTAG

SCAN

JTAGSEL

USART0

SSC0

Timer Counter

RXD0

TXD0

SCK0

RTS0
CTS0

SPI0_NPCS0
SPI0_NPCS1
SPI0_NPCS2
SPI0_NPCS3

SPI0_MISO
SPI0_MOSI

SPI0_SPCK

FLASH

256K Bytes

Memory

Controller

Memory 

Protection

Unit

Abort

Status

Address

Decoder

Misalignment

Detection

PIO

PIO

APB

Embedded

Flash

Controller

ADC0_AD0

ADC0_AD1

ADC0_AD2

ADC0_AD3

ADC0_AD4

ADC0_AD5

ADC0_AD6

ADC0_AD7

CAN0

ADC0_ADTRG

19 channels

PDC

PDC

USART1

RXD1

TXD1

SCK1

RTS1
CTS1

PDC

PDC

PDC

PDC

SPI0

SPI1_NPCS0
SPI1_NPCS1
SPI1_NPCS2
SPI1_NPCS3

SPI1_MISO
SPI1_MOSI

SPI1_SPCK

PDC

PDC

SPI1

PDC

ADC0

GND

VDDANA

ADVREFP

CAN1

PDC

PDC

SSC1

PDC

PDC

TC0

TC1

TC2

Timer Counter

TC3

TC4

TC5

Timer Counter

TC6

TC7

TC8

TWI

VDD3V3
GND
VDD1V8

RXD2

TXD2

SCK2

RTS2
CTS2

USART2

PDC

PDC

ADC1

PDC

ADC1_ADTRG

ADC1_AD0

ADC1_AD1

ADC1_AD2

ADC1_AD3

ADC1_AD4

ADC1_AD5

ADC1_AD6

ADC1_AD7

PWMC

1.8 V

Voltage

Regulator

MCCK

MCCDA

MCDA0-MCDA3

MCI

PDC

USB Device

FIFO

T

ransceiv

er

NRST

FIQ

IRQ0-IRQ3

PCK0-PCK3

PMC

AIC

PLL

RCOSC

PIOB

Reset

Controller

DRXD
DTXD

POR

PLLRC

OSC

XIN

XOUT

POR

VDDBU

TST

DBGU

PDC

PDC

PIO

PIT

WDT

RTT

System Controller

VDD3V3

PIOA

VDD1V8 POR

Shutdown

Controller

FWKUP

WKUP0
WKUP1

SHDW

GND

VDDBU

GPBR

PDC

Summary of Contents for AT91SAM7A3-EK

Page 1: ...AT91SAM7A3 EK Evaluation Board User Guide...

Page 2: ...6 Getting Started 2 3 2 7 AT91SAM7A3 EK Block Diagram 2 4 Section 3 Board Description 3 1 3 1 AT91SAM7A3 Microcontroller 3 1 3 2 AT91SAM7A3 Block Diagram 3 4 3 3 Memory 3 5 3 4 Clock Circuitry 3 5 3 5...

Page 3: ...getting started documents for all development boards and AT91 microcontrollers An AT91 software package with C and assembly listings is also provided This allows the user to begin evaluating the AT91...

Page 4: ...Overview 1 2 AT91SAM7A3 EK Evaluation Board User Guide 6165C ATARM 26 Jun 06...

Page 5: ...als A grounding strap or similar protective device should be worn when handling the board Avoid touching the component pins or any other metallic element 2 2 Requirements In order to set up the AT91SA...

Page 6: ...Setting Up the AT91SAM7A3 EK Evaluation Board 2 2 AT91SAM7A3 EK Evaluation Board User Guide 6165C ATARM 26 Jun 06 2 3 Layout Figure 2 1 Top Level Layout...

Page 7: ...by step procedures for working with the most common development tool chains Please refer to this DVD ROM or to the Atmel web site http www atmel com products AT91 for the most up to date information...

Page 8: ...VOLTAGE GEN PIO B EXT CLK INPUT 18 432 MHz XIN XOUT POWER LED AT91SAM7A3 LQFP100 1 ANALOG INPUT DBGU DRXD DTXD CANL 1 CANH USER S TACT SWITCH VDD3V3 RS PWM0 PIO IN OUT LIGHTED WHEN POWER ON PIO CANL 1...

Page 9: ...uto erase Full Erase Time 15 ms 10 000 Write Cycles 10 year Data Retention Capability Sector Lock Capabilities 32K Bytes of Internal High speed SRAM Single cycle Access at Maximum Speed Memory Control...

Page 10: ...us Output Shutdown Controller SHDWC Programmable Shutdown Pin and Wake up Circuitry Two 32 bit Battery Backup Registers for a Total of 8 Bytes One 8 channel 20 bit PWM Controller PMWC One USB 2 0 Full...

Page 11: ...iant with Multimedia Cards and SD Cards Automatic Protocol Control and Fast Automatic Data Transfers with PDC MMC and SDCard Compliant IEEE 1149 1 JTAG Boundary Scan on All Digital Pins Required Power...

Page 12: ...Status Address Decoder Misalignment Detection PIO PIO APB Embedded Flash Controller ADC0_AD0 ADC0_AD1 ADC0_AD2 ADC0_AD3 ADC0_AD4 ADC0_AD5 ADC0_AD6 ADC0_AD7 CAN0 ADC0_ADTRG 19 channels PDC PDC USART1...

Page 13: ...s less than 100 mA External power can be applied via USB Power adapter 5V 0 5A with USB A B cable On chip embedded VDDCORE 1 8V regulator On board 3 3V linear regulator with shutdown control 3 8 Remot...

Page 14: ...erface 20 pin JTAG ICE interface connector DBGU serial RS232 COM Port 3 12 Expansion Slot One SD MMC DataFlash card slot All I Os of the AT91SAM7A3 are routed to peripheral extension connectors J9 Thi...

Page 15: ...J19 Closed Enables 5V power supply for TJA1050 Transceiver It is closed by wire on solder side J19 and J20 should not be closed at the same time J20 Open Disables 3 3V power supply for TJA1050 Transce...

Page 16: ...14 Closed Enables the use of the RXD CAN0 transceiver PA26 S15 Closed Enables control of the Standby Normal mode for CAN0 and CAN1 transceivers PA23 S16 Closed Enables the use of the TXD CAN1 transcei...

Page 17: ...eature the user has to open the strap and insert an anmeter S31 Closed Enables the use of the DBGU TXD signal PA31 S32 Closed Enables the use of the DBGU RXD signal PA30 S33 Opened Disable VUSB power...

Page 18: ...Configuration Straps 4 4 AT91SAM7A3 EK Evaluation Board User Guide 6165C ATARM 26 Jun 06...

Page 19: ...AT91SAM7A3 EK Evaluation Board User Guide 5 1 6165C ATARM 26 Jun 06 Section 5 Schematics 5 1 Schematics This section contains the following schematics Processor I O...

Page 20: ...1V8 17 GND 1 VDDPLL 72 PLLRC 76 GND 75 XOUT 73 XIN 74 WKUP0 28 WKUP1 29 SHDN 30 PA0 TWD ADC0_ADTRG 21 PA1 TWCK ADC1_ADTRG 22 PA2 RXD0 23 PA3 TXD0 24 PA4 SCK0 SPI1_NPCS0 32 PA5 RTS0 SPI1_NPCS1 33 PA6 C...

Page 21: ...CC C1 C2 C2 V T T R R GND MN11 ADM3202ARN 1 16 3 4 5 15 11 10 12 9 8 13 7 14 2 6 MN7 TJA1050T MN7 TJA1050T GND 2 VCC 3 CANH 7 CANL 6 RXD 4 TXD 1 VREF 5 RS 8 R15 82K R15 82K S26 S26 S28 S28 S18 S18 J4...

Page 22: ...Schematics 5 2 AT91SAM7A3 EK Evaluation Board User Guide 6165C ATARM 26 Jun 06...

Page 23: ...evision History Table 6 1 Document Comments Change Request Ref 6165A First issue 6165B Added information on SAM BA in Section 2 6 05 415 6165C Removed references to 32 Mbit serial DataFlash AT45DB321C...

Page 24: ...Revision History 6 2 AT91SAM7A3 EK Evaluation Board User Guide 6165C ATARM 26 Jun 06...

Page 25: ...el 1 408 441 0311 Fax 1 408 487 2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH 1705 Fribourg Switzerland Tel 41 26 426 5555 Fax 41 26 426 5500 Asia Room 1219 Chi...

Page 26: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Atmel AT91SAM7A3 EK...

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