lh28f160s5h-l Sharp Microelectronics of the Americas, lh28f160s5h-l Datasheet - Page 26

• 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
Write 40H or 10H,
Data and Address
Data (See Above)
Write Word/Byte
Check if Desired
Word/Byte Write
Word/Byte Write
Status Register
Status Register
Successful
Full Status
Write 70H
Complete
Address
SR.7 =
SR.7 =
SR.3 =
SR.1 =
SR.4 =
Read
Read
Start
0
0
0
1
1
0
0
1
1
1
Word/Byte Write
V
Device Protect
Word/Byte
PP
Suspend
No
Write
Range Error
Fig. 5 Automated Word/Byte Write Flowchart
Error
Error
Suspend Word/Byte
Write Loop
Yes
- 26 -
OPERATION
OPERATION
Standby
Standby
Standby
Read
Write
Read
Standby
Write
Write
Standby
Repeat for subsequent word/byte writes.
SR full status check can be done after each word/byte write
or after a sequence of word/byte writes.
Write FFH after the last word/byte write operation to place
device in read array mode.
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.
BUS
BUS
Setup Word/
Read Status
COMMAND
COMMAND
Byte Write
Word/Byte
Register
Write
Data = 70H
Addr = X
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Data = 40H or 10H
Addr = Location to be Written
Data = Data to be Written
Addr = Location to be Written
Status Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Check SR.3
1 = V
Check SR.1
1 = Device Protect Detect
WP# = V
Only required for systems implement-
ing block lock-bit configuration
Check SR.4
1 = Data Write Error
PP
Error Detect
IL
, Block Lock-Bit is Set
LH28F160S5-L/S5H-L
COMMENTS
COMMENTS