M29F800DT
Block protection
Table 27. Programmer technique bus operations, BYTE = VIH or VIL
Operation
EG
W
Address Inputs
A0-A18
Block Protect
Chip Unprotect
Block Protection
verify
Block Unprotection
verify
VIL VID VIL Pulse
VID VID VIL Pulse
VIL VIL
VIH
VIL VIL
VIH
A9 = VID, A12-A18 Block address
Others = X
A9 = VID, A12 = VIH, A15 = VIH
Others = X
A0 = VIL, A1 = VIH, A6 = VIL, A9 = VID,
A12-A18 Block address
Others = X
A0 = VIL, A1 = VIH, A6 = VIH, A9 = VID,
A12-A18 Block address
Others = X
Data Inputs/Outputs
DQ15A–1, DQ14-DQ0
X
X
Pass = XX01h
Retry = XX00h
Retry = XX01h
Pass = XX00h
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