D a t a S h e e t ( P r e l i m i n a r 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.
Figure 8.2 PPB Program Algorithm
Enter PPB
Command Set.
Addr = BA
Program PPB Bit.
Addr = SA
Read Byte Twice
Addr = SA0
No
DQ6 =
Toggle?
Yes
No
DQ5 = 1?
Wait 500 µs
Yes
Read Byte Twice
Addr = SA0
No
Read Byte.
Addr = SA
DQ6 =
Toggle?
Yes
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 ]
