AT91SAM7SE32(2008) 查看數據表（PDF） - Atmel Corporation

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AT91SAM7SE32
(Rev.:2008)

Product Description

Atmel Corporation 

Table 3-1. Signal Description List (Continued)

Signal Name

Function

Type

EBI for NAND Flash Support

NANDCS

NAND Flash Chip Select Line

Output

NANDOE

NAND Flash Output Enable

Output

NANDWE

NAND Flash Write Enable

Output

NANDCLE

NAND Flash Command Line Enable

Output

NANDALE

NAND Flash Address Line Enable

Output

SDRAM Controller

SDCK

SDRAM Clock

Output

SDCKE

SDRAM Clock Enable

Output

SDCS

SDRAM Controller Chip Select Line

Output

BA[1:0]

Bank Select

Output

SDWE

SDRAM Write Enable

Output

RAS - CAS

Row and Column Signal

Output

NBS[3:0]

Byte Mask Signals

Output

SDA10

SDRAM Address 10 Line

Output

Note: 1. Refer to Section 6. “/O Lines Considerations” on page 15.

Active

Level

Low

Low

Low

Low

Low

High

Low

Low

Low

Low

Comments

Tied low after reset

8 AT91SAM7SE512/256/32 Preliminary

6222ES–ATARM–04-Jan-08

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