GD25Q32CxIGx 3.3V Uniform Sector Dual and Quad Serial Flash
http://www.elm-tech.com
Table3. Signature and Parameter Identification Data Values
Add(H) DW Add
Comment
Description
Data
Data
(Byte)
(Bit)
00H
01H
02H
03H
04H
05H
06H
07:00
15:08
23:16
31:24
07:00
15:08
23:16
53H
46H
44H
50H
00H
01H
01H
53H
46H
44H
50H
00H
01H
01H
SFDP Signature
Fixed:50444653H
SFDF Minor Revision Number
SFDF Major Revision Number
Number of Parameters Headers Start from 00H
Start from 00H
Start from 01H
Contains 0×FFH and
can never be changed
Unused
07H
08H
09H
0AH
0BH
31:24
07:00
15:08
23:16
31:24
FFH
00H
00H
01H
09H
FFH
00H
00H
01H
09H
00H: It indicates a JEDEC
specified header
ID number (JEDEC)
Parameter Table Minor Revision
Number
Start from 0×00H
Start from 0×01H
Parameter Table Major Revision
Number
Parameter Table Length
(in double word)
How many DWORDs
in the Parameter Table
0CH
0DH
0EH
07:00
15:08
23:16
30H
00H
00H
30H
00H
00H
Fist address of JEDEC Flash
Parameter Table
Parameter Table Pointer (PTP)
Unused
Contains 0×FFH and
can never be changed
0FH
10H
11H
12H
13H
31:24
07:00
15:08
23:16
31:24
FFH
C8H
00H
01H
03H
FFH
C8H
00H
01H
03H
ID Number
(ELM Manufacturer ID)
It is indicates ELM
manufacturer ID
Parameter Table Minor Revision
Number
Start from 0×00H
Start from 0×01H
Parameter Table Major Revision
Number
Parameter Table Length
(in double word)
How many DWORDs in the
Parameter Table
14H
15H
16H
07:00
15:08
23:16
60H
00H
00H
60H
00H
00H
Fist address of ELM Flash
Parameter Table
Parameter Table Pointer (PTP)
Unused
Contains 0×FFH and
can never be changed
17H
31:24
FFH
FFH
Rev.1.0
50 - 39
ELM [ ELM ELECTRONICS ]
