参数资料
型号: M58WR064KU70ZA6U
厂商: NUMONYX
元件分类: PROM
英文描述: 4M X 16 FLASH 1.8V PROM, 70 ns, PBGA44
封装: 7.50 X 5 MM, 0.50 MM PITCH, ROHS COMPLIANT, VFBGA-44
文件页数: 76/122页
文件大小: 2187K
代理商: M58WR064KU70ZA6U
M58WRxxxKU, M58WRxxxKL
Block locking
Table 17.
Lock status
Current protection status(1)
(WP, ADQ1, ADQ0)
1.
The lock status is defined by the write protect pin and by DQ1 (‘1’ for a locked-down block) and DQ0 (‘1’ for
a locked block) as read in the Read Electronic Signature command with A1 = VIH and A0 = VIL.
Next protection status(1) (WP, ADQ1, ADQ0)
Current
state
Program/erase
allowed
After Block Lock
command
After Block
Unlock
command
After Block
Lock-Down
command
After WP
transition
1,0,0
yes
1,0,1
1,0,0
1,1,1
0,0,0
1,0,1(2)
2.
All blocks are locked at power-up, so the default configuration is 001 or 101 according to WP status.
no
1,0,1
1,0,0
1,1,1
0,0,1
1,1,0
yes
1,1,1
1,1,0
1,1,1
0,1,1
1,1,1
no
1,1,1
1,1,0
1,1,1
0,1,1
0,0,0
yes
0,0,1
0,0,0
0,1,1
1,0,0
0,0,1(2)
no
0,0,1
0,0,0
0,1,1
1,0,1
0,1,1
no
0,1,1
1,1,1 or 1,1,0(3)
3.
A WP transition to VIH on a locked block restores the previous DQ0 value, giving a 111 or 110.
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