LH28F800SU Просмотр технического описания (PDF) - Sharp Electronics

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LH28F800SU

8M (512K × 16, 1M × 8) Flash Memory

Sharp Electronics 

LH28F800SU

8M (512K × 16, 1M × 8) Flash Memory

BLOCK STATUS REGISTER

BS

BLS

BOS

7

6

5

BOAS

4

BSR.7 = BLOCK STATUS (BS)

1 = Ready

0 = Busy

BSR.6 = BLOCK-LOCK STATUS (BLS)

1 = Block Unlocked for Write/Erase

0 = Block Locked for Write/Erase

BSR.5 = BLOCK OPERATION STATUS (BOS)

1 = Operation Unsuccessful

0 = Operation Successful or Currently Running

BSR.4 = BLOCK OPERATION ABORT STATUS (BOAS)

1 = Operation Aborted

0 = Operation Not Aborted

MATRIX 5/4

00 = Operation Successful or Currently Running

01 = Not a valid Combination

10 = Operation Unsuccessful

11 = Operation Aborted

BSR.3 = QUEUE STATUS (QS)

1 = Queue Full

0 = Queue Available

BSR.2 = VPP STATUS (VPPS)

1 = VPP Low Detect, Operation Abort

0 = VPP OK

QS

VPPS

R

R

3

2

1

0

NOTES:

1. RY »/BY » output or BS bit must be checked to determine

completion of an operation (Block Lock, Suspend, Erase or

Data Write) before the appropriate Status bits (BOS, BLS)

is checked for success.

2. The BOAS bit will not be set until BSR.7 = 1.

3. Operation halted via Abort command.

4. BSR.1-0 = Reserved for future enhancements. These bits

are reserved for future use; mask them out when polling

the BSRs.

5. When multiple operations are queued, checking BSR.7

only provides indication of completion for that particular

block. GSR.7 provides indication when all queued opera-

tions are completed.

14

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