AT91RM9200
Table 3-1.
Pin Name
Signal Description by Peripheral
Function
Memory Controller
Type
Active
Level
Comments
BMS
Boot Mode Select
Debug Unit
Input
DRXD
DTXD
Debug Receive Data
Debug Transmit Data
AIC
Input
Output
Debug Receive Data
Debug Transmit Data
IRQ0 - IRQ6
FIQ
External Interrupt Inputs
Fast Interrupt Input
PIO
Input
Input
PA0 - PA31
PB0 - PB29
PC0 - PC31
PD0 - PD27
Parallel IO Controller A
Parallel IO Controller B
Parallel IO Controller C
Parallel IO Controller D
EBI
I/O
I/O
I/O
I/O
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
Pulled-up input at reset
D0 - D31
A0 - A25
Data Bus
Address Bus
SMC
I/O
Output
Pulled-up input at reset
0 at reset
NCS0 - NCS7
NWR0 - NWR3
NOE
NRD
NUB
NLB
NWE
NWAIT
NBS0 - NBS3
Chip Select Lines
Write Signal
Output Enable
Read Signal
Upper Byte Select
Lower Byte Select
Write Enable
Wait Signal
Byte Mask Signal
Output
Output
Output
Output
Output
Output
Output
Input
Output
EBI for CompactFlash Support
Low
Low
Low
Low
Low
Low
Low
Low
Low
1 at reset
1 at reset
1 at reset
1 at reset
1 at reset
1 at reset
1 at reset
1 at reset
CFCE1 - CFCE2
CFOE
CFWE
CFIOR
CFIOW
CFRNW
CFCS
CompactFlash Chip Enable
CompactFlash Output Enable
CompactFlash Write Enable
CompactFlash IO Read
CompactFlash IO Write
CompactFlash Read Not Write
CompactFlash Chip Select
Output
Output
Output
Output
Output
Output
Output
Low
Low
Low
Low
Low
Low
5
1768MS–ATARM–09-Jul-09
ATMEL [ ATMEL CORPORATION ]
