Data
Sheet
(Pre limin ar y)
8. There are no means for individually erasing a specific PPB and no specific sector address is
required for this operation.
9. Exit command must be issued after the execution which resets the device to read mode and re-
enables reads and writes for Sector 0.
10. The programming state of the PPB for a given sector can be verified by writing a PPB Status Read
Command to the device as described by the flow chart shown in
Figure 8.2
PPB Program Algorithm
Enter PPB
Command
Set.
Addr = BA
Program PPB Bit.
Addr =
SA
Read Byte Twice
Addr =
SA0
DQ6 =
Toggle?
Yes
No
No
DQ5 = 1?
Yes
Read Byte Twice
Addr =
SA0
Wait 500
µs
DQ6 =
Toggle?
Yes
No
Read Byte.
Addr =
SA
No
DQ0 =
'0' (Pgm.)?
FAIL
Yes
Issue Reset
Command
PASS
Exit PPB
Command
Set
44
S29GL-P MirrorBit
®
Flash Family
S29GL-P_00_A7 November 8, 2007
SPANSION [ SPANSION ]
