LH28F016SCH-L 데이터 시트보기 (PDF) - Sharp Electronics
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LH28F016SCH-L Datasheet PDF : 44 Pages
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LH28F016SC-L/SCH-L
Start
Write 40H,
Address
Write Byte
Data and Address
Read
Status Register
0
SR.7 =
1
BUS
OPERATION COMMAND
COMMENTS
Write
Setup Data = 40H
Byte Write Addr = Location to be Written
Write
Byte Write
Data = Data to be Written
Addr = Location to be Written
Read
Status Register Data
Suspend Byte
No
Write Loop
Suspend
Byte Write Yes
Standby
Check SR.7
1 = WSM Ready
0 = WSM Busy
Repeat for subsequent byte writes.
SR full status check can be done after each byte write or after
a sequence of byte writes.
Write FFH after the last byte write operation to place device
in read array mode.
Full Status
Check if Desired
Byte Write
Complete
FULL STATUS CHECK PROCEDURE
Read Status Register
Data (See Above)
1
SR.3 =
0
VPP Range Error
SR.1 = 1
0
Device Protect Error
1
SR.4 =
0
Byte Write
Successful
Byte Write Error
BUS
OPERATION COMMAND
COMMENTS
Standby
Check SR.3
1 = VPP Error Detect
Standby
Check SR.1
1 = Device Protect Detect
RP# = VIH, Block Lock-Bit is Set
Only required for systems
implementing lock-bit configuration
Standby
Check SR.4
1 = Data Write Error
SR.4, SR.3 and SR.1 are only cleared by the Clear Status
Register command in cases where multiple locations are
written before full status is checked.
If error is detected, clear the status register before attempting
retry or other error recovery.
Fig. 4 Automated Byte Write Flowchart
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