Atmel AT91EB42 manual Overview, Asb

Overview

2 x 32-pin EBI expansion connectors

2 x 32-pin I/O expansion connectors

￿20-pin JTAG interface connector

If required, user-defined peripherals can also be added to the board. See Section 5 for details.

Figure 1-1.AT91EB42 Evaluation Board Block Diagram

				AT91M42800
		Reset
		Controller		8K Byte
				RAM
			ARM7TDMI		SRAM
		JTAG	Processor
		ICE		EBI
		Connector
				ASB	Flash
		32.768 KHz	Clock
		Crystal	Generator	AMBA
				Bridge	Serial	LEDs
					EEPROM
		Push-buttons	Interrupt	PIO
			Controller
			System	APB
			Timer	Timer
		Reset	Watchdog	Counters
					Serial
		Controller				Serial
					Data
						EEPROM
			Reset		Flash
				SPI
			PIO
2.1mm DC				Serial
Power	Power Supply				RS232
Socket				Ports	Transceivers
	Fast-charge	Battery
	Controller	Connector

EBI

Expansion

Connector

I/O

Expansion

Connector

DB9 Serial Connectors

1-2

AT91EB42 Evaluation Board User Guide