S29GL01GP
S29GL512P
S29GL256P
S29GL128P
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?
Yes
Wait 500 µs
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
Document Number: 002-00886 Rev. *B
Page 39 of 83