M29DW128F60NF1 STMICROELECTRONICS [STMicroelectronics], M29DW128F60NF1 Datasheet - Page 76

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M29DW128F60NF1

Manufacturer Part Number
M29DW128F60NF1
Description
128 Mbit (16Mb x8 or 8Mb x16, Multiple Bank, Page, Boot Block) 3V Supply, Flash Memory
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
12 Part numbering
Appendix B Common Flash Interface (CFI)
Table 35.
1. Query data are always presented on the lowest order data outputs.
76/93
1Bh
x16
10h
27h
40h
61h
Address
The Common Flash Interface is a JEDEC approved, 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 memory. The system can interface easily with the device, enabling the
software to upgrade itself when necessary.
When the Read CFI Query command is issued the addressed bank enters Read CFI Query
mode and read operations in the same bank (A22-A19) output the CFI data.
Table
the data.
The CFI data structure also contains a security area where a 64 bit unique security number is
written (see
the final user. It is impossible to change the security number after it has been written by ST.
Query Structure Overview
37,
C2h
4Eh
20h
36h
80h
x8
Table
Table 40: Security Code
38,
CFI Query Identification String
System Interface Information
Device Geometry Definition
Primary Algorithm-specific Extended
Query table
Security Code Area
Table 39
Sub-section Name
and
Table 40
Area). This area can be accessed only in Read mode by
show the addresses (A-1, A0-A10) used to retrieve
Command set ID and algorithm data offset
Device timing & voltage information
Flash device layout
Additional information specific to the Primary
Algorithm (optional)
64 bit unique device number
Description
Table
M29DW128F
35,
Table
36,

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