參數(shù)資料
型號: W29GL128CL1B
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 128M X 1 FLASH 3V PROM, 100 ns, PBGA64
封裝: 11 X 13 MM, GREEN, BGA-64
文件頁數(shù): 24/63頁
文件大?。?/td> 552K
代理商: W29GL128CL1B
W29GL128C
24
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)
10h
0051h
20h
11h
0052h
22h
Query-unique ASII string “QRY”
12h
0059h
24h
13h
0002h
26h
Primary vendor instruction set and control interface ID code
14h
0000h
28h
15h
0040h
2Ah
Address for primary algorithm extended query table
16h
0000h
2Ch
17h
0000h
2Eh
Alternate vendor instruction set and control interface ID code
18h
0000h
30h
19h
0000h
32h
Address for alternate algorithm extended query table
1Ah
0000h
34h
Table 7-19
CFI Mode: ID Data Values
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