參數(shù)資料
型號: Am29LV160BT80RFE
廠商: Advanced Micro Devices, Inc.
元件分類: FLASH
英文描述: 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
中文描述: 16Mb(2M×8位/1Mx16位), 3V, CMOS引導(dǎo)扇區(qū)閃存
文件頁數(shù): 15/46頁
文件大小: 649K
代理商: AM29LV160BT80RFE
P R E L IM IN A R Y
Am29LV160B
15
Figure 2.
Temporary Sector Unprotect Operation
COMMON FLASH MEMORY INTERFACE
(CFI)
The Common Flash Interface (CFI) specification out-
lines 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-inde-
pendent, 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 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 5–8. 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 autoselect mode. The device
enters the CFI query mode, and the system can read
CFI data at the addresses given in Tables 5–8. The
system must write the reset command to return the
device to the autoselect mode.
For further information, please refer to the CFI Specifi-
cation and CFI Publication 100, available via the World
Wide Web at http://www.amd.com/products/nvd/over-
view/cfi.html. Alternatively, contact an AMD represent-
ative for copies of these documents.
START
Perform Erase or
Program Operations
RESET# = V
IH
Temporary Sector
Unprotect Completed
(Note 2)
RESET# = V
ID
(Note 1)
Notes:
1. All protected sectors unprotected.
2. All previously protected sectors are protected once
again.
21358F-6
Table 5.
CFI Query Identification String
Addresses
(Word Mode)
Addresses
(Byte Mode)
Data
Description
10h
11h
12h
20h
22h
24h
0051h
0052h
0059h
Query Unique ASCII string “QRY”
13h
14h
26h
28h
0002h
0000h
Primary OEM Command Set
15h
16h
2Ah
2Ch
0040h
0000h
Address for Primary Extended Table
17h
18h
2Eh
30h
0000h
0000h
Alternate OEM Command Set (00h = none exists)
19h
1Ah
32h
34h
0000h
0000h
Address for Alternate OEM Extended Table (00h = none exists)
相關(guān)PDF資料
PDF描述
Am29LV160BT80RFI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
Am29LV160BT80RSCB 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
Am29LV160BT80RSE 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
Am29LV160BT80RSI 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
AM29LV160B 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
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