ST52F513FMM6 datasheet(39/106 Pages) STMICROELECTRONICS

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ST52F510/F513/F514

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4.8.4 Option Bytes.

First Protected Page (PG_LOCK)

Option Byte 5 (05h)

Reset Value: 0000 0000 (00h)

Bit 7-0: LCK7-0 First Page write protected

In this register the address of first page to be

protected in writing is specified. The pages

following this one are protected up to the page

specified by the PG_UNLOCK Option Byte (not

included among the protected ones).

First Page not Protected (PG_UNLOCK)

Option Byte 6 (06h)

Reset Value: 0000 0000 (00h)

Bit 7-0: UNLCK7-0 First Page not write protected

In this register the address of first page not write

protected after the protected ones is specified. The

pages following this one aren’t protected.

4.8.5 Input Register.

IAP Status Register (IAP_SR)

Input Register 40 (028h) Read only

Reset Value: 0000 0000 (00h)

Bit 7-2: Not Used

Bit 1: PRTCD Page Protected

0: The writing has been completed

1: The writing has been aborted because the

page is protected.

Bit 0: ABRT Writing operation aborted

0: The writing has been completed

1: The writing has been aborted because an

interrupt or another unspecified cause

occurred.

The ABRT and PRTCD bits are reset after the next

successful data writing in the Flash of EEPROM

memory.

LCK7

LCK6

LCK5

LCK4

LCK3

LCK2

LCK1

LCK0

UNLCK7 UNLCK6 UNLCK5 UNLCK4 UNLCK3 UNLCK2 UNLCK1 UNLCK0

---

PRTCD

ABRT

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