M29W320DB 데이터 시트보기 (PDF) - Numonyx -> Micron

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M29W320DB

32 Mbit (4Mbx8 or 2Mbx16, Non-uniform Parameter Blocks, Boot Block), 3V Supply Flash memory

Numonyx -> Micron 

M29W320DT, M29W320DB

Status Register

Table 7. Status Register Bits(1)

Operation

Address

DQ7

DQ6

DQ5 DQ3

DQ2

RB

Program

Any Address

DQ7

Toggle

0

–

–

0

Program During Erase

Suspend

Any Address

DQ7

Toggle

0

–

–

0

Program Error

Any Address

DQ7

Toggle

1

–

–

0

Chip Erase

Block Erase before

timeout

Block Erase

Erase Suspend

Erase Error

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

AI90194

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