参数资料
型号: W29GL032CT7A
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 2M X 16 FLASH 3V PROM, 80 ns, PBGA48
封装: GREEN, VFBGA-48
文件页数: 25/65页
文件大小: 650K
代理商: W29GL032CT7A
W29GL032C
Publication Release Date: January 19, 2011
25
Preliminary - Revision B
7.6
Common Flash Memory Interface (CFI) Mode
7.6.1
Query Instruction and Common Flash memory Interface (CFI) Mode
Through Common Flash Interface(CFI) operations it is possible to access the operating characteristics,
structure and vendor specific information, such as identifying information, memory size, byte/word
configuration, operating voltages and timing information of this device. From the Read array mode
writing CFI Read instruction 98h to the address "55h"/"AAh" (Word/Byte, respectively), the device will
gain access to the CFI Query Mode. Once in the CFI mode data can be read using the addresses
given in Table 7-19 thru 7-22.
A reset instruction must be executed to exit CFI mode and the device will return to read array mode.
CFI mode: Identification Data Values (All Values in these tables are hexadecimal)
Description
Address
(Word Mode)
Data
Address
(Byte Mode)
Query-unique ASII string “QRY”
10h
0051h
20h
11h
0052h
22h
12h
0059h
24h
Primary vendor instruction set and control interface ID code
13h
0002h
26h
14h
0000h
28h
Address for primary algorithm extended query table
15h
0040h
2Ah
16h
0000h
2Ch
Alternate vendor instruction set and control interface ID code
17h
0000h
2Eh
18h
0000h
30h
Address for alternate algorithm extended query table
19h
0000h
32h
1Ah
0000h
34h
Table 7-19
CFI Mode: ID Data Values
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