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S29GL016A10FFIW13 View Datasheet(PDF) - Spansion Inc.

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S29GL016A10FFIW13 Datasheet PDF : 95 Pages
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Data Sheet
8. Common Flash Memory Interface (CFI)
The Common Flash Interface (CFI) specification outlines device and host system software interrogation
handshake, which allows specific vendor-specified software algorithms to be used for entire families of
devices. Software support can then be device-independent, JEDEC ID-independent, and forward- and
backward-compatible for the specified flash device families. Flash vendors can standardize their existing
interfaces for long-term compatibility.
This device enters the CFI Query mode when the system writes the CFI Query command, 98h, to address
55h, any time the device is ready to read array data. The system can read CFI information at the addresses
given in Table 8.1 to Table 8.4 on page 51. To terminate reading CFI data, the system must write the reset
command.
The system can also write the CFI query command when the device is in the autoselect mode. The device
enters the CFI query mode, and the system can read CFI data at the addresses given in Table 8.1 to
Table 8.4 on page 51. The system must write the reset command to return the device to reading array data.
For further information, please refer to the CFI Specification and CFI Publication 100. Alternatively, contact
your sales representative for copies of these documents.
Table 8.1 CFI Query Identification String
Addresses (x16)
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
Addresses (x8)
20h
22h
24h
26h
28h
2Ah
2Ch
2Eh
30h
32h
34h
Data
0051h
0052h
0059h
0002h
0000h
0040h
0000h
0000h
0000h
0000h
0000h
Description
Query Unique ASCII string “QRY”
Primary OEM Command Set
Address for Primary Extended Table
Alternate OEM Command Set (00h = none exists)
Address for Alternate OEM Extended Table (00h = none exists)
Table 8.2 System Interface String
Addresses (x16) Addresses (x8)
Data
Description
1Bh
36h
0027h
VCC Min. (write/erase)
D7–D4: volt, D3–D0: 100 millivolt
1Ch
38h
0036h
VCC Max. (write/erase)
D7–D4: volt, D3–D0: 100 millivolt
1Dh
3Ah
0000h
VPP Min. voltage (00h = no VPP pin present)
1Eh
3Ch
0000h
VPP Max. voltage (00h = no VPP pin present)
1Fh
3Eh
0007h
Reserved for future use
20h
40h
0007h
Typical timeout for Min. size buffer write 2N µs (00h = not supported)
21h
42h
000Ah
Typical timeout per individual block erase 2N ms
22h
44h
0000h
Typical timeout for full chip erase 2N ms (00h = not supported)
23h
46h
0001h
Reserved for future use
24h
48h
0005h
Max. timeout for buffer write 2N times typical
25h
4Ah
0004h
Max. timeout per individual block erase 2N times typical
26h
4Ch
0000h
Max. timeout for full chip erase 2N times typical (00h = not supported)
Note
CFI data related to VCC and time-outs may differ from actual VCC and time-outs of the product. Please consult the Ordering Information
tables to obtain the VCC range for particular part numbers. Please consult the Erase and Programming Performance table for typical timeout
specifications.
May 21, 2008 S29GL-A_00_A12
S29GL-A
49
 

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