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GD25B256D Arkusz danych(PDF) 62 Page - GigaDevice Semiconductor (Beijing) Inc.

Numer części GD25B256D
Szczegółowy opis  3.3V Uniform Sector Dual and Quad Serial Flash
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Producent  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Strona internetowa  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25B256D Arkusz danych(HTML) 62 Page - GigaDevice Semiconductor (Beijing) Inc.

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3.3V Uniform Sector
Dual and Quad Serial Flash
GD25B256D
62
Table 21. Signature and Parameter Identification Data Values
Description
Comment
Add(H)
(Byte)
DW Add
(Bit)
Data
Data
SFDP Signature
Fixed:50444653H
00H
07:00
53H
53H
01H
15:08
46H
46H
02H
23:16
44H
44H
03H
31:24
50H
50H
SFDP Minor Revision Number
Start from 00H
04H
07:00
06H
06H
SFDP Major Revision Number
Start from 01H
05H
15:08
01H
01H
Number of Parameters Headers
Start from 00H
06H
23:16
02H
02H
Unused
Contains 0xFFH and can never be
changed
07H
31:24
FFH
FFH
ID number (JEDEC)
00H: It indicates a JEDEC specified
header
08H
07:00
00H
00H
Parameter Table Minor Revision
Number
Start from 0x00H
09H
15:08
06H
06H
Parameter Table Major Revision
Number
Start from 0x01H
0AH
23:16
01H
01H
Parameter Table Length
(in double word)
How many DWORDs in the
Parameter table
0BH
31:24
10H
10H
Parameter Table Pointer (PTP)
First address of JEDEC Flash
Parameter table
0CH
07:00
30H
30H
0DH
15:08
00H
00H
0EH
23:16
00H
00H
Unused
Contains 0xFFH and can never be
changed
0FH
31:24
FFH
FFH
ID Number
(GigaDevice Manufacturer ID)
It is indicates GigaDevice
manufacturer ID
10H
07:00
C8H
C8H
Parameter Table Minor Revision
Number
Start from 0x00H
11H
15:08
00H
00H
Parameter Table Major Revision
Number
Start from 0x01H
12H
23:16
01H
01H
Parameter Table Length
(in double word)
How many DWORDs in the
Parameter table
13H
31:24
03H
03H
Parameter Table Pointer (PTP)
First address of GigaDevice Flash
Parameter table
14H
07:00
90H
90H
15H
15:08
00H
00H
16H
23:16
00H
00H
Unused
Contains 0xFFH and can never be
changed
17H
31:24
FFH
FFH
ID Number
(4-Byte Address Instruction)
4-Byte address instruction
parameter ID
18H
07:00
84H
84H
Parameter Table Minor Revision
Number
Start from 0x00H
19H
15:08
00H
00H


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