LH28F016LL datasheet(13/29 Pages) SHARP

13 / 29 page

16M (1M × 16, 2M × 8) Flash Memory

LH28F016LL

BLS

BOS

BOAS

VPPS

765

BSR.7 = 1BLOCK 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

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 operations are

completed.

BLOCK STATUS REGISTER

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