參數資料
型號: 28F1604C3
廠商: Intel Corp.
英文描述: 3 Volt Advanced+ Stacked Chip Scale Package Memory(3V閃速存儲器和靜態(tài)存儲器)
中文描述: 3伏高級堆疊芯片級封裝存儲器(3V的閃速存儲器和靜態(tài)存儲器)
文件頁數: 53/64頁
文件大?。?/td> 927K
代理商: 28F1604C3
28F1602C3, 28F1604C3, 28F3204C3
Preliminary
47
B.3
Block Lock Status Register
The Block Status Register indicates whether an erase operation completed successfully or whether
a given block is locked or can be accessed for flash program/erase operations.
Block Erase Status (BSR.1) allows system software to determine the success of the last block erase
operation. BSR.1 can be used just after power-up to verify that the V
CC
supply was not
accidentally removed during an erase operation. This bit is only reset by issuing another erase
operation to the block. The Block Status Register is accessed from word address 02h within each
block.
NOTE:
1. BA = The beginning location of a Block Address (i.e., 008000h is the beginning location of block 1 in
word mode.)
B.4
CFI Query Identification String
The Identification String provides verification that the component supports the Common Flash
Interface specification. It also indicates the specification version and supported vendor-specified
command set(s).
Table 14. Block Status Register
Offset
Length
Description
Address
Value
(BA+2)h
(1)
1
Block Lock Status Register
BA+2:
--00 or --01
BSR.0 Block Lock Status
0 = Unlocked
1 = Locked
BA+2:
(bit 0): 0 or 1
BSR.1 Block Lock-Down Status
0 = Not locked down
1 = Locked down
BA+2:
(bit 1): 0 or 1
BSR 2–7:
Reserved for future use
BA+2:
(bit 2–7): 0
Table 15. CFI Identification
Offset
Length
Description
Addr.
Hex
Code
--51
--52
--59
--03
--00
--35
--00
--00
--00
--00
--00
Value
10h
3
Query-unique ASCII string “QRY“
10
11:
12:
13:
14:
15:
16:
17:
18:
19:
1A:
“Q”
“R”
“Y”
13h
2
Primary vendor command set and control interface ID code.
16-bit ID code for vendor-specified algorithms
Extended Query Table primary algorithm address
15h
2
17h
2
Alternate vendor command set and control interface ID code
0000h means no second vendor-specified algorithm exists
Secondary algorithm Extended Query Table address.
0000h means none exists
19h
2
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