M5M29GB640VP Datasheet, PDF (33/42 Pages) List of Unclassifed Manufacturers – 3.3V ONLY FLASHMEMORY

M5M29GB640VP
Figure 6. Automated Word Programming Flowchart
Start
Write 40H
Program Address/Data
Read Status Register
No
SR.7=1 ?
Yes
Full Status
Check if Desired
Bus
Command Comments
Operation
Write
Program Data=40H
Setup
Write
Program Data=Data to Program
Addr=Location to Program
Read
Status Register Data Toggle
CE or OE to Update Status
Register Data
Standby
Check SR.7
1=WSM Ready
0=WSM Busy
Repeat for subsequent programming operations.
SR full status check can be done after each program
or after a sequence of program operations.
Write FFH after the last program operation to reset
device to read array mode.
Program Ccomplete
FULL STATUS CHECK PROCEDURE
Read Status Register
Data(See Above)
SR.3=
0
SR.4=
0
SR.1=
0
Program Successful
1
VPP Range Error
1
Programming Error
1
Attempted Program to
Locked Block- Aborted
Bus
Command Comments
Operation
Standby
Check SR.3
1=VPP Low Detect
Standby
Check SR.4
1=VPP Program Detect
Standby
Check SR.11
1=Attempted Program to
Locked Sector-Program
Aborted
SR.3 MUST be cleared, if set during a program at-
tempt, before further attempts are allowed by the Write
State Machine.
SR.4, SR.3, and SR.1 are only cleared by the Clear
Status Register Command, in cases where multiple
programmed before full status is checked.
If an error is detected, clear the status register before
attempting retry or other error recovery.
P/N:PM0900
REV. 0.3, NOV. 21, 2002
34