W29GL032C_13 Datasheet, PDF (24/68 Pages) Winbond – 32M-BIT 3.0-VOLT PARALLEL FLASH MEMORY WITH PAGE MODE

W29GL032C
Wait 500µs
Read DQ[7:0] twice
DQ0=
‘1’ (Erase) or
‘0’ (Program)
YES
Pass
IPB instruction set entry
Program IPB
Read DQ[7:0] twice
NO
DQ6=Toggle?
YES
DQ5=1?
NO
YES
Read DQ[7:0] twice
NO
DQ6=Toggle?
YES
NO
Program Fail Write Reset CMD
Figure 7-3
IPB instruction set Exit
IPB Program Algorithm
Note:
1. IPB program/erase status polling flowchart: Check DQ6 toggle, when DQ6 stop toggle, the read status is 00h/01h
(00h for program and 01h for erase, otherwise the status is “fail’ and “exit”.
7.3.2.3 Individual Protection Bit Lock Bit
The Individual Protection Bit Lock Bit (IPBLK) is a global lock bit to control all IPB states. It is a
singular volatile bit. If the IPBLK is set (“0”), all IPB are locked and all sectors are protected or
unprotected according to their individual IPB. When IPBLK=1 (cleared), all IPB are unlocked and
allowed to be set or cleared.
To clear the IPB Lock Bit, a hardware reset or a power-up cycle must be executed.
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