AT91SAM9261-CJ Ver la hoja de datos (PDF) - Atmel Corporation
Número de pieza
componentes Descripción
Fabricante
AT91SAM9261-CJ Datasheet PDF : 44 Pages
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Table 3-1. Signal Description by Peripheral (Continued)
Signal Name
Function
Type
Reset/Test
NRST
Microcontroller Reset
I/O
TST
Test Mode Select
Input
BMS
Boot Mode Select
Input
Debug Unit
DRXD
Debug Receive Data
Input
DTXD
Debug Transmit Data
Output
AIC
IRQ0 - IRQ2
External Interrupt Inputs
Input
FIQ
Fast Interrupt Input
Input
PIO
PA0 - PA31
Parallel IO Controller A
I/O
PB0 - PB31
Parallel IO Controller B
I/O
PC0 - PC31
Parallel IO Controller C
I/O
EBI
D0 - D31
Data Bus
I/O
A0 - A25
Address Bus
Output
NWAIT
External Wait Signal
Input
SMC
NCS0 - NCS7
Chip Select Lines
Output
NWR0 - NWR3
Write Signal
Output
NRD
Read Signal
Output
NWE
Write Enable
Output
NBS0 - NBS3
Byte Mask Signal
Output
CompactFlash Support
CFCE1 - CFCE2
CompactFlash Chip Enable
Output
CFOE
CompactFlash Output Enable
Output
CFWE
CompactFlash Write Enable
Output
CFIOR
CompactFlash IO Read
Output
CFIOW
CompactFlash IO Write
Output
CFRNW
CompactFlash Read Not Write
Output
CFCS0 - CFCS1
CompactFlash Chip Select Lines
Output
NAND Flash Support
NANDOE
NAND Flash Output Enable
Output
NANDWE
NAND Flash Write Enable
Output
NANDCS
NAND Flash Chip Select
Output
Active Level Comments
Low
Pull-up resistor
Pull-down resistor.
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
0 at reset
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
6 AT91SAM9261 Preliminary
6062LS–ATARM–23-Mar-09
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