參數(shù)資料
型號(hào): LH28F160BHE-TTL90
廠商: Sharp Corporation
英文描述: 16M (x8/x16) Flash Memory
中文描述: 1,600(x8/x16)閃存
文件頁數(shù): 20/46頁
文件大?。?/td> 679K
代理商: LH28F160BHE-TTL90
Bus
Operation
Command
Comments
Write
Write
Read
Standby
Erase Setup
Erase
Confirm
Data=20H
Addr=X
Data=D0H
Addr=Within Block to be Erased
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
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 operation to place device in read array mode.
Bus
Operation
Command
Comments
Standby
Check SR.4,5
Both 1=Command Sequence Error
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.
Check SR.5
1=Block Erase Error
Standby
Standby
Standby
Check SR.3
1=V
CCW
Error Detect
Check SR.1
1=Device Protect Detect
Start
Write 20H
Write D0H,
Block Address
Read Status
Register
SR.7=
0
1
Suspend
Block Erase
No
Yes
Suspend Block
Erase Loop
Full Status
Check if Desired
Block Erase
Complete
FULL STATUS CHECK PROCEDURE
Read Status Register
Data(See Above)
SR.3=
1
0
V
CCW
Range Error
Device Protect Error
Command Sequence
Error
Block Erase Error
SR.1=
1
0
SR.4,5=
SR.5=
1
1
0
0
Block Erase Successful
Read Status
Register
SR.7=
0
1
Write
Read
Read Status
Register
Data=70H
Addr=X
Standby
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
Write 70H
LHF16J04
18
Rev. 1.26
Figure 5. Automated Block Erase Flowchart
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