28F016XD Datasheet, PDF (18/54 Pages) Intel Corporation – 16-MBIT (1 MBIT x 16) DRAM-INTERFACE FLASH MEMORY

28F016XD FLASH MEMORY
E
4.6 Block Status Register
BS
BLS
BOS
R
R
VPPS
VPPL
R
7
6
5
4
BSR.7 = BLOCK STATUS
1 = Ready
0 = Busy
BSR.6 = BLOCK LOCK STATUS
1 = Block Unlocked for Program/Erase
0 = Block Locked for Program/Erase
3
2
1
0
NOTES:
RY/BY# output or BS bit must be checked to
determine completion of an operation (block lock,
suspend, erase or data program) before the
appropriate Status bits (BOS, BLS) is checked
for success.
BSR.5 = BLOCK OPERATION STATUS
1 = Operation Unsuccessful
0 = Operation Successful or
Currently Running
BSR.2 = V_PP STATUS
1 = V_PP Error Detect, Operation Abort
0 = V_PP OK
BSR.1 = V_PP LEVEL
1 = V_PP Detected at 5.0V ± 10%
0 = V_PP Detected at 12.0V ± 5%
BSR.1 is not guaranteed to report accurate
feedback between the V_PPH1 and V_PPH2 voltage
ranges. Programs and erases with V_PP between
V_PPLK(max) and V_PPH1 (min), between
V_PPH1(max) and V_PPH2(min), and above
V_PPH2(max) produce spurious results and should
not be attempted.
BSR.1 was a RESERVED bit on the 28F016SA.
BSR.4,3,0 = RESERVED FOR FUTURE ENHANCEMENTS
These bits are reserved for future use; mask them out when polling the BSRs.
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