lh28f160s5h-l Sharp Microelectronics of the Americas, lh28f160s5h-l Datasheet - Page 25

• Manufacturer Part Number: lh28f160s5h-l
• Description: M-bit Smart Flash Memories Fast Programming
• Manufacturer: Sharp Microelectronics of the Americas

FULL STATUS CHECK PROCEDURE
Read Status Register
Data (See Above)
Check if Desired
Status Register
Status Register
Full Chip Erase
Full Chip Erase
Successful
Full Status
Write D0H
Write 70H
Write 30H
Complete
SR.4, 5 =
SR.7 =
SR.7 =
SR.3 =
SR.5 =
Read
Read
Start
0
0
0
1
1
0
0
1
1
1
Full Chip Erase Error
Command Sequence
V
PP
Range Error
Fig. 4 Automated Full Chip Erase Flowchart
Error
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OPERATION
OPERATION
Standby
Standby
Standby
Read
Write
Read
Standby
Write
Write
Standby
Full status check can be done after each full chip erase.
Write FFH after the last full chip 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 Confirm
Read Status
Erase Setup
COMMAND
COMMAND
Register
Full Chip
Full Chip
Check SR.3
1 = V
Check SR.4, 5
Both 1 = Command Sequence Error
Data = 70H
Addr = X
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Data = 30H
Addr = X
Data = D0H
Addr = X
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Check SR.5
1 = Full Chip Erase Error
PP
Error Detect
COMMENTS
COMMENTS
LH28F160S5-L/S5H-L