S29CD016G SPANSION, S29CD016G Datasheet - Page 38

• Manufacturer Part Number: S29CD016G
• Description: 16 Megabit (512 K x 32-Bit) CMOS 2.5 Volt-only Burst Mode / Dual Boot / Simultaneous Read/Write Flash Memory
• Manufacturer: SPANSION

Common Flash Memory Interface (CFI)
38
Addresses
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
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
minate 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
The system must write the reset command to return the device to the autoselect
mode.
For further information, please refer to the CFI Specification and CFI Publication
100, available via the World Wide Web at http://www.amd.com/products/nvd/
overview/cfi.html. Alternatively, contact a Spansion representative for copies of
these documents.
Note: CFI cannot be read in synchronous mode.
0051h
0052h
0059h
0002h
0000h
0040h
0000h
0000h
0000h
0000h
0000h
Data
Table 14. CFI Query Identification String
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 14 on page 38
A d v a n c e
Table 14 on page 38
S29CD016G
I n f o r m a t i o n
to
TTable 17 on page
Description
to
TTable 17 on page
41. To ter-
S29CD016_00_A4 November 5, 2004
41.