參數(shù)資料
型號(hào): M58WR064HU70ZB6U
元件分類: PROM
英文描述: 4M X 16 FLASH 1.8V PROM, 70 ns, PBGA44
封裝: 7.70 X 9 MM, 0.50 MM PITCH, ROHS COMPLIANT, VFBGA-44
文件頁數(shù): 70/117頁
文件大?。?/td> 2300K
代理商: M58WR064HU70ZB6U
Block locking
M58WR064HU M58WR064HL
Table 15.
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 will restore the previous DQ0 value, giving a 111 or 110.
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