参数资料
型号: W29GL032CT7A
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 2M X 16 FLASH 3V PROM, 80 ns, PBGA48
封装: GREEN, VFBGA-48
文件页数: 17/65页
文件大小: 650K
代理商: W29GL032CT7A
W29GL032C
18
Figure 7-3
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.
.
IPB instruction set entry
Program IPB
Read DQ[7:0] twice
DQ5=1?
DQ6=Toggle?
Program Fail Write Reset CMD
DQ6=Toggle?
Wait 500s
Pass
IPB instruction set Exit
DQ0=
‘1’ (Erase) or
‘0’ (Program)
NO
YES
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