M29F800DB55M1F 查看數據表（PDF） - STMicroelectronics

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M29F800DB55M1F

8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 5V Supply Flash Memory

STMicroelectronics 

Status Register

M29F800DT

Table 7. Status Register Bits(1)

Operation

Address

DQ7 DQ6 DQ5 DQ3

DQ2

RB

Program

Program during

Erase Suspend

Any address

Any address

DQ7 Toggle

0

–

DQ7 Toggle

0

–

–

0

–

0

Program Error

Chip Erase

Block Erase

before timeout

Block Erase

Erase Suspend

Erase Error

Any address

DQ7 Toggle

1

–

–

0

Any address

0

Toggle

0

1

Toggle

0

Erasing Block

0

Toggle

0

0

Toggle

0

Non-Erasing Block

0

Toggle

0

0 No Toggle 0

Erasing Block

0

Toggle

0

1

Toggle

0

Non-Erasing Block

0

Toggle

0

1 No Toggle 0

Erasing Block

1 No Toggle 0

–

Toggle

1

Non-Erasing Block

Data read as normal

1

Good Block address 0

Toggle

1

1 No Toggle 0

Faulty Block address 0

Toggle

1

1

Toggle

0

1. Unspecified data bits should be ignored.

Figure 6. Data Polling flowchart

START

READ DQ5 & DQ7

at VALID ADDRESS

DQ7

=

YES

DATA

NO

NO DQ5

=1

YES

READ DQ7

at VALID ADDRESS

DQ7

=

YES

DATA

NO

FAIL

PASS

AI03598

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