Atmel AVR XMEGA AU series User Manual

345
8331B–AVR–03/12
Atmel AVR XMEGA AU
Table 27-6. Pin-out for SRAM and SRAM LPC when combined with SDRAM (four-port only).
PORT PIN SRAM LPC
ALE1
(with SDRAM)
SRAM LPC
ALE12
(with SDRAM)
SRAM
ALE1
(with SDRAM)
SRAM
ALE12
(with SDRAM)
PORT3
7:4 CS[3:0]
(A[23:20])
CS[3:0]
(A[23:20])
CS[3:0]
(A[23:20])
CS[3:0]
3:0 A[15:8] A[19:16] A[19:16]
–
PORT2 7:0 A[15:8]
–
A[7:0]/
A[15:8]
A[7:0]/
A[15:8]/
A[23:16]
PORT1 7:0 D[7:0]/
A[7:0]
D[7:0]/
A[7:0]/
A[15:8]
D[7:0] D[7:0]
PORT0
7:4
– – – –
3
–
ALE2
–
ALE2
2 ALE1 ALE1 ALE1 ALE1
1RE RE RE RE
0WE WE WE WE
Table 27-7. Pin-out SDRAM.
PORT PIN SDRAM
3PORT
4BIT
SDRAM
4PORT
4BIT
SDRAM
4PORT
8BIT
PORT3
7:4
–
CS[3:0] CS[3:0]
3:0
A[11:8]
PORT2 7:0 A[7:0] A[7:0] A[7:0]
PORT1
7:4 A[11:8] A[11:8] D[7:4]
3:0 D[3:0] D[3:0] D[3:0]
PORT0
7 CLK CLK CLK
6 CKE CKE CKE
5 BA1 BA1 BA1
4 BA0 BA0 BA0
3DQM
DQM DQM
2RAS RAS RAS
1CAS CAS CAS
0WE WE WE

Atmel AVR XMEGA AU series Specifications

General

Brand	Atmel
Model	AVR XMEGA AU series
Category	Microcontrollers
Language	English