AT91SAM7S64C-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM7S64C-AU

AT91SAM ARM-based Flash MCU

Atmel Corporation 

20.2.2 Signal Names

Depending on the MODE settings, DATA is latched in different internal registers.

Table 20-2.

MODE[3:0]

0000

0001

0010

0011

0100

0101

Default

Mode Coding

Symbol

CMDE

ADDR0

ADDR1

ADDR2

ADDR3

DATA

IDLE

Data

Command Register

Address Register LSBs

Address Register MSBs

Data Register

No register

When MODE is equal to CMDE, then a new command (strobed on DATA[15:0] or DATA[7:0] signals) is stored in

the command register.

Note: DATA[7:0] pertains to the SAM7S32/16.

Table 20-3. Command Bit Coding

DATA[15:0]

DATA[7:0](1)

Symbol

0x0011

READ

0x0012

WP

0x0022

WPL

0x0032

EWP

0x0042

EWPL

0x0013

EA

0x0014

SLB

0x0024

CLB

0x0015

GLB

0x0034

SGPB

0x0044

CGPB

0x0025

GGPB

0x0054

SSE

0x0035

GSE

0x001F

WRAM

0x0016

SEFC

0x001E

GVE

Command Executed

Read Flash

Write Page Flash

Write Page and Lock Flash

Erase Page and Write Page

Erase Page and Write Page then Lock

Erase All

Set Lock Bit

Clear Lock Bit

Get Lock Bit

Set General Purpose NVM bit

Clear General Purpose NVM bit

Get General Purpose NVM bit

Set Security Bit

Get Security Bit

Write Memory

Select EFC Controller(2)

Get Version

Notes: 1. DATA[7:0] pertains to the SAM7S32/16.

2. Applies to SAM7S512.

SAM7S Series [DATASHEET]

6175M–ATARM–26-Oct-12

126

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