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參數(shù)資料
| 型號(hào)： | M59MR032D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 32 Mbit 2Mb x16, Mux I/O, Dual Bank, Burst 1.8V Supply Flash Memory |
| 中文描述： | 32兆位的2Mb x16插槽，復(fù)用的I / O，雙行，突發(fā)1.8V電源快閃記憶體 |
| 文件頁數(shù)： | 22/49頁 |
| 文件大?。?/td> | 352K |
| 代理商： | M59MR032D |
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M59MR032C, M59MR032D
22/49
Table 19. Query Structure Overview
Note: The Flash memory display the CFI data structure when CFI Query command is issued. In this table are listed the main sub-sections
detailed in Tables 20, 21 and 22. Query data are always presented on the lowest order data outputs.
Table 20. CFI Query Identification String
Note: Query data are always presented on the lowest - order data outputs (ADQ0-ADQ7) only. ADQ8-ADQ15
are ‘0’.
Offset
Sub-section Name
Description
00h
Reserved
Reserved for algorithm-specific information
10h
CFI Query Identification String
Command set ID and algorithm data offset
1Bh
System Interface Information
Device timing & voltage information
27h
Device Geometry Definition
Flash device layout
P
Primary Algorithm-specific Extended Query table
Additional information specific to the Primary
Algorithm (optional)
A
Alternate Algorithm-specific Extended Query table
Additional information specific to the Alternate
Algorithm (optional)
Offset
Data
Description
00h
0020h
Manufacturer Code
01h
00A4h - Top
00A5h - Bottom
Device Code
02h-0Fh
reserved
Reserved
10h
0051h
Query Unique ASCII String "QRY"
11h
0052h
12h
0059h
13h
0002h
Primary Algorithm Command Set and Control Interface ID code 16 bit ID code
defining a specific algorithm
14h
0000h
15h
offset = P = 0039h
Address for Primary Algorithm extended Query table
16h
0000h
17h
0000h
Alternate Vendor Command Set and Control Interface ID Code second vendor
- specified algorithm supported (note: 0000h means none exists)
18h
0000h
19h
value = A = 0000h
Address for Alternate Algorithm extended Query table
note: 0000h means none exists
1Ah
0000h
COMMON FLASH INTERFACE (CFI)
The Common Flash Interface (CFI) specification is
a JEDEC approved, standardised data structure
that can be read from the Flash memory device.
CFI allows a system software to query the flash
device to determine various electrical and timing
parameters, density information and functions
supported by the device. CFI allows the system to
easily interface to the Flash memory, to learn
about its features and parameters, enabling the
software to configure itself when necessary.
Tables 19, 20, 21, 22, 23 and 24 show the address
used to retrieve each data.
The CFI data structure gives information on the
device, such as the sectorization, the command
set and some electrical specifications. Tables 19,
20, 21 and 22 show the addresses used to retrieve
each data. The CFI data structure contains also a
security area; in this section, a 64 bit unique secu-
rity number is written, starting at address 81h. This
area can be accessed only in read mode and there
are no ways of changing the code after it has been
written by ST. Write a read instruction to return to
Read mode. Refer to the CFI Query instruction to
understand how the M59MR032 enters the CFI
Query mode.
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| M59MR032D120GC6T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16, Mux I/O, Dual Bank, Burst 1.8V Supply Flash Memory |
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| M59MR032DGC | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:32 Mbit 2Mb x16, Mux I/O, Dual Bank, Burst 1.8V Supply Flash Memory |
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