Atmel /ATSAM4SD32C /EFC1 /FCR

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Interpret as FCR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (GETD)FCMD0FARG0FKEY

FCMD=GETD

Description

EEFC Flash Command Register

Fields

FCMD

Flash Command

0 (GETD): Get Flash descriptor

1 (WP): Write page

2 (WPL): Write page and lock

3 (EWP): Erase page and write page

4 (EWPL): Erase page and write page then lock

5 (EA): Erase all

7 (EPA): Erase pages

8 (SLB): Set lock bit

9 (CLB): Clear lock bit

10 (GLB): Get lock bit

11 (SGPB): Set GPNVM bit

12 (CGPB): Clear GPNVM bit

13 (GGPB): Get GPNVM bit

14 (STUI): Start read unique identifier

15 (SPUI): Stop read unique identifier

16 (GCALB): Get CALIB bit

17 (ES): Erase sector

18 (WUS): Write user signature

19 (EUS): Erase user signature

20 (STUS): Start read user signature

21 (SPUS): Stop read user signature

FARG

Flash Command Argument

FKEY

Flash Writing Protection Key

90 (PASSWD): The 0x5A value enables the command defined by the bits of the register. If the field is written with a different value, the write is not performed and no action is started.

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