參數(shù)資料
型號: LHF16J06
廠商: Sharp Corporation
英文描述: Flash Memory 16M (1M 】 16 / 2M 】 8)
中文描述: 閃存16M內(nèi)存(100萬】16 / 2米】8)
文件頁數(shù): 22/47頁
文件大?。?/td> 245K
代理商: LHF16J06
Bus
Operation
Command
Comments
Write
Write
Read
Standby
Setup Word/Byte Write
Word/Byte Write
Data=40H or 10H
Addr=X
Data=Data to Be Written
Addr=Location to Be Written
Status Register Data
Check SR.7
1=WSM Ready
0=WSM Busy
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.
Bus
Operation
Command
Comments
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.
Check SR.4
1=Data Write Error
Standby
Standby
Standby
Check SR.3
1=V
CCW
Error Detect
Check SR.1
1=Device Protect Detect
Start
Write 40H or 10H
Write Word/Byte
Data and Address
Read
Status Register
SR.7=
0
1
Suspend
Word/Byte
Write
No
Yes
Suspend Word/Byte
Write Loop
Full Status
Check if Desired
Word/Byte Write
Complete
FULL STATUS CHECK PROCEDURE
Read Status Register
Data(See Above)
SR.3=
1
0
V
CCW
Range Error
Device Protect Error
Word/Byte Write Error
SR.1=
1
0
SR.4=
1
0
Word/Byte Write Successful
Write 70H
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
LHF16J06
20
Rev. 1.26
Figure 7. Automated Word/Byte Write Flowchart
sharp
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