256-Mbit J3 (x8/x16)
Table 25. Query Structure
Offset
Sub-Section Name
Description
Manufacturer Code
Notes
00h
01h
1
1
Device Code
(BA+2)h(2)
04-0Fh
10h
Block Status Register
Reserved
Block-Specific Information
1,2
1
Reserved for Vendor-Specific Information
Reserved for Vendor-Specific Information
Command Set ID and Vendor Data Offset
Flash Device Layout
CFI Query Identification String
System Interface Information
Device Geometry Definition
1
1Bh
1
27h
1
Primary Intel-Specific Extended
Query Table
Vendor-Defined Additional Information
Specific to the Primary Vendor Algorithm
P(3)
1,3
NOTES:
1. Refer to the Query Structure Output section and offset 28h for the detailed definition of offset
address as a function of device bus width and mode.
2. BA = Block Address beginning location (i.e., 02000h is block 2’s beginning location when the
block size is 128 Kbyte).
3. Offset 15 defines “P” which points to the Primary Intel-Specific Extended Query Table.
A.3
Block 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.
Table 26. Block Status Register
Offset
(BA+2)h(1)
Length
Description
Block Lock Status Register
Address
Value
1
BA+2:
--00 or --01
BSR.0 Block Lock Status
0 = Unlocked
1 = Locked
BA+2:
BA+2:
(bit 0): 0 or 1
(bit 1–7): 0
BSR 1–7: Reserved for Future Use
NOTE:
1. BA = The beginning location of a Block Address (i.e., 008000h is block 1’s (64-KB block) beginning location
in word mode).
A.4
CFI Query Identification String
The CFI Query 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 27. CFI Identification (Sheet 1 of 2)
Hex
Code
Offset Length
Description
Add.
Value
10
11:
12:
13:
14:
15:
16:
17:
--51
--52
--59
--01
--00
--31
--00
--00
“Q”
“R”
“Y”
10h
13h
15h
17h
3
2
2
2
Query-unique ASCII string “QRY”
Primary vendor command set and control interface ID code.
16-bit ID code for vendor-specified algorithms
Extended Query Table primary algorithm address
Alternate vendor command set and control interface ID code.
54
Datasheet
INTEL [ INTEL ]
