M58BV016FT7T3T View Datasheet(PDF) - Numonyx -> Micron
Part Name
Description
MFG CO.
M58BV016FT7T3T
Numonyx -> Micron
'M58BV016FT7T3T' PDF : 70 Pages View PDF
Common Flash interface (CFI)
M58BW016DT, M58BW016DB, M58BW016FT, M58BW016FB
Appendix A Common Flash interface (CFI)
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 CFI Query command (RCFI) is issued the device enters CFI query mode and the
data structure is read from the memory. Table 26, Table 27, Table 28, Table 29 and Table 30
show the addresses used to retrieve the data.
Table 26. Query structure overview
Offset
Sub-section name
Description
00h
Manufacturer code
01h
Device code
10h CFI Query identification string
Command set ID and algorithm data offset
1Bh System interface information
Device timing and voltage information
27h Device geometry definition
Flash memory layout
P(h)(1)
Primary algorithm-specific extended query
table
Additional information specific to the primary
algorithm (optional)
A(h)(2)
Alternate algorithm-specific extended query Additional information specific to the
table
alternate algorithm (optional)
1. Offset 15h defines P which points to the primary algorithm extended query address table.
2. Offset 19h defines A which points to the alternate algorithm extended query address table.
Table 27. CFI - query address and data output(1)(2)
Address A0-A18
Data
Instruction
10h
51h
"Q" 51h; ‘Q’
11h
52h
"R" Query ASCII String 52h; ‘R’
12h
59h
"Y" 59h; ‘Y’
13h
03h
Primary vendor:
14h
00h
Command set and control interface ID code
15h
35h
Primary algorithm extended query address table:
16h
00h
P(h)
17h
00h
Alternate vendor:
18h
00h
Command Set and Control interface ID code
19h
00h
Alternate algorithm extended query address table
1Ah
00h
1. The x 8 or byte address and the x 16 or word address mode are not available.
2. Query data are always presented on DQ7-DQ0. DQ31-DQ8 are set to '0'.
56/70
Share Link: 