AT91SAM7S64C-AU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT91SAM7S64C-AU

AT91SAM ARM-based Flash MCU

Atmel Corporation 

19.3.2 MC Flash Command Register

Register Name:

MC_FCR

Access Type:

Write-only

Offset: (EFC0)

0x64

Offset: (EFC1)

0x74

31

30

29

28

27

26

25

24

KEY

23

22

21

20

19

18

17

16

–

–

–

–

–

–

PAGEN

15

14

13

12

11

10

9

8

PAGEN

7

6

5

4

3

2

1

0

–

–

–

–

FCMD

• FCMD: Flash Command

This field defines the Flash commands:

FCMD

0000

0001

0010

0011

0100

1000

1011

1101

1111

Others

Operations

No command.

Does not raise the Programming Error Status flag in the Flash Status Register MC_FSR.

Write Page Command (WP):

Starts the programming of the page specified in the PAGEN field.

Set Lock Bit Command (SLB):

Starts a set lock bit sequence of the lock region specified in the PAGEN field.

Write Page and Lock Command (WPL):

The lock sequence of the lock region associated with the page specified in the field PAGEN

occurs automatically after completion of the programming sequence.

Clear Lock Bit Command (CLB):

Starts a clear lock bit sequence of the lock region specified in the PAGEN field.

Erase All Command (EA):

Starts the erase of the entire Flash.

If at least one page is locked, the command is cancelled.

Set General-purpose NVM Bit (SGPB):

Activates the general-purpose NVM bit corresponding to the number specified in the PAGEN

field.

Clear General Purpose NVM Bit (CGPB):

Deactivates the general-purpose NVM bit corresponding to the number specified in the

PAGEN field.

Set Security Bit Command (SSB):

Sets security bit.

Reserved.

Raises the Programming Error Status flag in the Flash Status Register MC_FSR.

SAM7S Series [DATASHEET]

6175M–ATARM–26-Oct-12

117

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