PM0059 datasheet(24/29 Pages) STMICROELECTRONICS

tên linh kiện	PM0059

Giải thích chi tiết về linh kiện	This programming manual describes how to program

PDF	29 Pages

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Flash memory interface

PM0059

24/29

DocID15687 Rev 5

2.8.6

Flash option control register (FLASH_OPTCR)

The FLASH_OPTCR register is used to modify the user option bytes.

Address offset: 0x14

Reset value: 0x0FFF AAED. The option bits are loaded with values from Flash memory at

reset release.

Access: no wait state when no Flash memory operation is ongoing, word, half-word and

byte access.

Bits 9:8 PSIZE: Program size

These bits select the program parallelism.

00 program x8

01 program x16

10 program x32

11 program x64

Bit 7 Reserved, must be kept cleared.

Bits 6:3 SNB: Sector number

These bits select the sector to erase.

0000 sector 0

0001 sector 1

...

1011 sector 11

Others not allowed

Bit 2 MER: Mass Erase

Erase activated for all user sectors.

Bit 1 SER: Sector Erase

Sector Erase activated.

Bit 0 PG: Programming

Flash programming activated.

Reserved

nWRP[11:0]

5432

RDP[7:0]

nRST_

STDBY

nRST_

STOP

WDG_

Reserv

BOR_LEV

OPTST

OPTLO

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