ST10F273 datasheet(32/179 Pages) STMICROELECTRONICS

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Internal Flash memory

ST10F273

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5.4.4

Flash control register 1 high

The Flash Control Register 1 High (FCR1H), together with Flash Control Register 1 Low

(FCR1L), is used to select the sectors to Erase or, during any write operation, to monitor the

status of each sector and bank.

FCR1H (0x0E 0006)

FCR

Reset value: 0000h

765432

reserved

B1S

B0S

reserved

B1F1

B1F0

Table 10.

Flash control register 1 high

Bit

Function

B1F(1:0)

Bank 1 IFlash sector 1:0 status

These bits must be set during a Sector Erase operation to select the sectors to erase in Bank 1.

Besides, during any erase operation, these bits are automatically set and give the status of the two

sectors of Bank 1 (B1F1-B1F0). The meaning of B1Fy bit for Sector y of Bank 0 is given by the

next Table 11 Banks (BxS) and Sectors (BxFy) Status bits meaning. These bits are automatically

reset at the end of a Write operation if no errors are detected.

B0S

Bank 0 status

During any erase operation, this bit is automatically modified and gives the status of the Bank 0.

The meaning of B0S bit is given in the next Table 11 Banks (BxS) and Sectors (BxFy) Status bits

meaning. This bit is automatically reset at the end of a erase operation if no errors are detected.

B1S

Bank 1 status

During any erase operation, this bit is automatically modified and gives the status of the Bank 1.

The meaning of B1S bit is given in the next Table 11 Banks (BxS) and Sectors (BxFy) Status bits

meaning. This bit is automatically reset at the end of a erase operation if no errors are detected.

Table 11.

Banks (BxS) and sectors (BxFy) status bits meaning

ERR

SUSP

BxS = 1 meaning

BxFy = 1 meaning

Erase error in bank x

Erase error in sector y of bank x

Erase suspended in bank x

Erase suspended in sector y of bank x

Don’t care

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