LH28F016SCH-L Sharp Electrionic Components, LH28F016SCH-L Datasheet - Page 17
LH28F016SCH-L
Manufacturer Part Number
LH28F016SCH-L
Description
16 M-bit (2 MB x 8) SmartVoltage Flash Memories
Manufacturer
Sharp Electrionic Components
Datasheet
1.LH28F016SCH-L.pdf
(44 pages)
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FULL STATUS CHECK PROCEDURE
Read Status Register
Data (See Above)
Check if Desired
Status Register
Block Address
Block Address
Block Erase
Block Erase
Write D0H,
Write 20H,
Full Status
Successful
Complete
SR.4, 5 =
SR.7 =
SR.3 =
SR.1 =
SR.5 =
Read
Start
0
0
0
0
1
0
1
1
1
1
Block Erase
Command Sequence
No
Device Protect Error
Suspend
V
PP
Fig. 3 Automated Block Erase Flowchart
Block Erase
Range Error
Error
Error
Suspend Block
Erase Loop
Yes
- 17 -
OPERATION
OPERATION COMMAND
Write
Write
Read
Standby
Standby
Standby
Standby
Standby
Repeat for subsequent block erasures.
Full status check can be done after each block erase or after
a sequence of block erasures.
Write FFH after the last block erase 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 in cases where multiple blocks
are erased before full status is checked.
If error is detected, clear the status register before attempting
retry or other error recovery.
BUS
BUS
Erase Setup
COMMAND
Confirm
Erase
Check SR.3
1 = V
Check SR.4, 5
Both 1 = Command Sequence Error
Data = 20H
Addr = Within Block to be Erased
Data = D0H
Addr = Within Block to be Erased
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Check SR.1
1 = Device Protect Detect
RP# = V
Only required for systems
implementing lock-bit configuration
Check SR.5
1 = Block Erase Error
PP
Error Detect
IH
, Block Lock-Bit is Set
COMMENTS
COMMENTS
LH28F016SC-L/SCH-L
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