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Flash program memory and data EEPROM (FLASH) RM0367

92/1043 RM0367 Rev 7

Erase a page in Flash program memory

• Purpose

Delete one page (32 words) in the Flash program memory.

• Size

Erase only by word (it deletes a page of the Flash program memory writing with a word

size)

• Address

Select a valid address in the Flash program memory.

• Protocol

Single programming operation.

• Requests

PELOCK = 0, PRGLOCK = 0, ERASE = 1, PRG = 1.

• Errors

WRPERR is set to 1 if PELOCK = 1 or PRGLOCK = 1.

WRPERR is set to 1 if the row is in a protected sector (see PcROP (Proprietary Code

Read-Out Protection)).

SIZERR is set to 1 if the size is not the word.

• Description

This operation aims at deleting the content of a row in the Flash program memory. The

user must write a value in the right address with a word size. The data is not important:

only an erase is executed (also with data not at zero). The address does not need to be

aligned to the page: the memory interface will delete the page which contents the

address.

• Duration

Tprog (3.2 ms).

For code example, refer to A.3.11: Erase a page in Flash program memory code example.

ST STM32L0x3 User Manual

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