s29al016m Meet Spansion Inc., s29al016m Datasheet - Page 23

• Manufacturer Part Number: s29al016m
• Description: 16 Megabits 2m X 8-bits / 1m X 16-bits
• Manufacturer: Meet Spansion Inc.

October 11, 2006 S29AL016M_00_A7
(Word Mode)
Addresses
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
Common Flash Memory Interface (CFI)
The Common Flash Interface (CFI) specification outlines device and host system
software interrogation handshake, which allows specific vendor-specified soft-
ware algorithms to be used for entire families of devices. Software support can
then be device-independent, JEDEC ID-independent, and forward- and back-
ward-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 in word mode (or address AAh in byte mode), any
time the device is ready to read array data. The system can read CFI information
at the addresses given in Tables 6–9. In word mode, the upper address bits (A7–
MSB) must be all zeros. 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 au-
toselect mode. The device enters the CFI query mode, and the system can read
CFI data at the addresses given in Tables 6–9. The system must write the reset
command to return the device to the read/reset mode.
For further information, please refer to the CFI Specification and CFI Publication
100, available online at http://www.amd.com/flash/cfi. Alternatively, contact an
sales office or representative for copies of these documents.
(Byte Mode)
Addresses
20h
22h
24h
26h
28h
2Ah
2Ch
2Eh
30h
32h
34h
Table 6. CFI Query Identification String
D a t a
0051h
0052h
0059h
0002h
0000h
0040h
0000h
0000h
0000h
0000h
0000h
Data
S h e e t
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)
S29AL016M
Description
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