Preliminary
K5A3x80YT(B)C
MCP MEMORY
Start
Start
Yes
No
DQ7 = Data ?
No
DQ6 = Toggle ?
Yes
No
No
DQ5 = 1 ?
DQ5 = 1 ?
Yes
Yes
No
Yes
DQ6 = Toggle ?
DQ7 = Data ?
Yes
Fail
No
Pass
Pass
Fail
Figure 10. Data Polling Algorithms
Figure 11. Toggle Bit Algorithms
Start
RESET=VID
(Note 1)
Perform Erase or
Program Operations
RESET=VIH
Temporary Block
Unprotect Completed
(Note 2)
NOTES:
1. All protected block groups are unprotected.
( If WP/ACC = VIL , the two outermost boot blocks remain protected )
2. All previously protected block groups are protected once again.
Figure 12. Temporary Block Group Unprotect Routine
Revision 0.0
November 2002
- 25 -
SAMSUNG [ SAMSUNG ]
