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參數(shù)資料
| 型號： | M29W800DT90ZA6T |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Low-Power Configurable Multiple-Function Gate 6-SC70 -40 to 85 |
| 中文描述： | 8兆（1兆x8或512KB的x16插槽，引導(dǎo)塊）3V電源快閃記憶體 |
| 文件頁數(shù)： | 32/41頁 |
| 文件大?。?/td> | 219K |
| 代理商： | M29W800DT90ZA6T |
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M29W800DT, M29W800DB
32/41
APPENDIX B. COMMON FLASH INTERFACE (CFI)
The Common Flash Interface is a JEDEC ap-
proved, standardized data structure that can be
read from the Flash memory device. It allows a
system software to query the device to determine
various electrical and timing parameters, density
information and functions supported by the mem-
ory. The system can interface easily with the de-
vice, enabling the software to upgrade itself when
necessary.
When the CFI Query Command is issued the de-
vice enters CFI Query mode and the data structure
is read from the memory. Tables 20, 21, 22, 23, 24
and 24 show the addresses used to retrieve the
data.
The CFI data structure also contains a security
area where a 64 bit unique security number is writ-
ten (see Table , Security Code area). This area
can be accessed only in Read mode by the final
user. It is impossible to change the security num-
ber after it has been written by ST. Issue a Read
command to return to Read mode.
Table 20. Query Structure Overview
Note: Query data are always presented on the lowest order data outputs.
Table 21. CFI Query Identification String
Note:
Query data are always presented on the lowest order data outputs (DQ7-DQ0) only. DQ8-DQ15 are ‘0’.
Address
Sub-section Name
Description
x16
x8
10h
20h
CFI Query Identification String
Command set ID and algorithm data offset
1Bh
36h
System Interface Information
Device timing & voltage information
27h
4Eh
Device Geometry Definition
Flash device layout
40h
80h
Primary Algorithm-specific Extended
Query table
Additional information specific to the Primary
Algorithm (optional)
61h
C2h
Security Code Area
64 bit unique device number
Address
Data
Description
Value
x16
x8
10h
20h
0051h
"Q"
11h
22h
0052h
Query Unique ASCII String "QRY"
"R"
12h
24h
0059h
"Y"
13h
26h
0002h
Primary Algorithm Command Set and Control Interface ID code 16 bit
ID code defining a specific algorithm
AMD
Compatible
14h
28h
0000h
15h
2Ah
0040h
Address for Primary Algorithm extended Query table (see Table 23)
P = 40h
16h
2Ch
0000h
17h
2Eh
0000h
Alternate Vendor Command Set and Control Interface ID Code second
vendor - specified algorithm supported
NA
18h
30h
0000h
19h
32h
0000h
Address for Alternate Algorithm extended Query table
NA
1Ah
34h
0000h
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M29W800DB90M1T | 8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 3V Supply Flash Memory |
| M29W800DB90M6T | 8 Mbit (1Mb x8 or 512Kb x16, Boot Block) 3V Supply Flash Memory |
| M29W800T100M1R | Low-Power Configurable Multiple-Function Gate 6-SOT -40 to 85 |
| M2GB51TB-1 | ULTRA HIGH BRIGHTNESS GREEN LED LAMP |
| M3000-86-1 | Single output 3000 and 4000 Watt AC/DC high current power supplies with PFC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M29W800FB70N3E | 制造商:Micron Technology Inc 功能描述: 制造商:Micron Technology Inc 功能描述:IC FLASH 8MBIT 70NS 48TSOP |
| M29W800FB70N3F | 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Tape and Reel 制造商:Micron Technology Inc 功能描述:IC FLASH 8MBIT 70NS 48TSOP |
| M29W800FB70ZA3SE | 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Trays 制造商:Micron Technology Inc 功能描述:IC FLASH 8MBIT 70NS 48TFBGA |
| M29W800FB70ZA3SF | 制造商:Micron Technology Inc 功能描述:AUTOMOTIVE - Tape and Reel |
| M29W800FB70ZA3SF TR | 制造商:Micron Technology Inc 功能描述:IC FLASH 8MBIT 70NS 48TFBGA |
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