AT91SAM9260 Datasheet, PDF (6/45 Pages) ATMEL Corporation – AT91 ARM Thumb Microcontrollers

Table 3-1. Signal Description List (Continued)
Signal Name
NRST
TST
BMS
DRXD
DTXD
IRQ0 - IRQ2
FIQ
PA0 - PA31
PB0 - PB31
PC0 - PC31
D0 - D31
A0 - A25
NWAIT
NCS0 - NCS7
NWR0 - NWR3
NRD
NWE
NBS0 - NBS3
CFCE1 - CFCE2
CFOE
CFWE
CFIOR
CFIOW
CFRNW
CFCS0 - CFCS1
NANDCS
NANDOE
Function
Microcontroller Reset
Reset/Test
Type
I/O
Test Mode Select
Input
Boot Mode Select
Input
Debug Unit - DBGU
Debug Receive Data
Input
Debug Transmit Data
Output
Advanced Interrupt Controller - AIC
External Interrupt Inputs
Input
Fast Interrupt Input
Input
PIO Controller - PIOA - PIOB - PIOC
Parallel IO Controller A
I/O
Parallel IO Controller B
I/O
Parallel IO Controller C
I/O
External Bus Interface - EBI
Data Bus
I/O
Address Bus
Output
External Wait Signal
Input
Static Memory Controller - SMC
Chip Select Lines
Output
Write Signal
Output
Read Signal
Output
Write Enable
Output
Byte Mask Signal
Output
CompactFlash Support
CompactFlash Chip Enable
Output
CompactFlash Output Enable
Output
CompactFlash Write Enable
Output
CompactFlash IO Read
Output
CompactFlash IO Write
Output
CompactFlash Read Not Write
Output
CompactFlash Chip Select Lines
Output
NAND Flash Support
NAND Flash Chip Select
Output
NAND Flash Output Enable
Output
Active
Level
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Comments
Pull-up resistor
Pull-down resistor. Accepts
between 0V and VDDBU.
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
0 at reset
6 AT91SAM9260 Preliminary
6221ES–ATARM–12-Mar-07