lh28f016sc-l Sharp Microelectronics of the Americas, lh28f016sc-l Datasheet - Page 22
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lh28f016sc-l
Manufacturer Part Number
lh28f016sc-l
Description
M-bit Smartvoltage Flash Memories
Manufacturer
Sharp Microelectronics of the Americas
Datasheet
1.LH28F016SC-L.pdf
(44 pages)
- Current page: 22 of 44
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FULL STATUS CHECK PROCEDURE
Clear Block Lock-Bits
Read Status Register
Clear Block Lock-Bits
Data (See Above)
Check if Desired
Status Register
Successful
Full Status
Write D0H
Write 60H
Complete
SR.4, 5 =
SR.7 =
SR.3 =
SR.1 =
SR.5 =
Read
Start
0
0
0
0
1
0
1
1
1
1
Command Sequence
Clear Block Lock-Bits
Device Protect Error
V
PP
Fig. 8 Clear Block Lock-Bits Flowchart
Range Error
Error
Error
- 22 -
OPERATION
OPERATION COMMAND
Write
Write
Read
Standby
Standby
Standby
Standby
Standby
Write FFH after the last clear block lock-bits operation to place
device in read array mode.
SR.5, SR.4, SR.3 and SR.1 are only cleared by the Clear
Status Register command.
If error is detected, clear the status register before attempting
retry or other error recovery.
BUS
BUS
COMMAND
Clear Block
Clear Block
Lock-Bits
Lock-Bits
Confirm
Setup
Check SR.3
1 = V
Check SR.4, 5
Both 1 = Command Sequence Error
Check SR.1
1 = Device Protect Detect
RP# = V
Check SR.5
1 = Clear Block Lock-Bits Error
Data = 60H
Addr = X
Data = D0H
Addr = X
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
PP
Error Detect
IH
, Master Lock-Bit is Set
COMMENTS
COMMENTS
LH28F016SC-L/SCH-L
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