PF38F1602CT70 View Datasheet(PDF) - Intel
Part Name
Description
MFG CO.
'PF38F1602CT70' PDF : 75 Pages View PDF
C3 SCSP Flash Memory
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 VCC 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.
Table 24. Block Status Register
Offset
Length
Description
Address
Value
(BA+2)h
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
Note: 1. BA = The beginning location of a Block Address (i.e., 008000h is the beginning location of block 1
in word mode.)
Notes
1
B.4
Table 25.
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).
CFI Identification
Offset Length
Description
Addr.
Hex
Code
Value
10h
3
Query-unique ASCII string “QRY“
10 --51 “Qâ€
11: --52 “Râ€
12: --59 “Yâ€
13h
2
Primary vendor command set and control interface ID code. 13: --03
16-bit ID code for vendor-specified algorithms
14: --00
15h
2
Extended Query Table primary algorithm address
15: --35
16: --00
17h
2
Alternate vendor command set and control interface ID code 17: --00
0000h means no second vendor-specified algorithm exists
18: --00
19h
2
Secondary algorithm Extended Query Table address.
19: --00
0000h means none exists
1A: --00
26 Aug 2005
54
Intel® Advanced+ Boot Block Flash Memory (C3) SCSP Family
Order Number: 252636, Revision: 004
Datasheet
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