AM29F160BB-120FIB 查看數據表（PDF） - Advanced Micro Devices

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AM29F160BB-120FIB

16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory

Advanced Micro Devices 

PRELIMINARY

START

RESET# = VID

(Note 1)

Perform Erase or

Program Operations

RESET# = VIH

Temporary Sector

Unprotect Completed

(Note 2)

Notes:

21358F-6

1. All protected sectors unprotected.

2. All previously protected sectors are protected once

again.

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.

Addresses

(Word Mode)

10h

11h

12h

13h

14h

15h

16h

17h

18h

19h

1Ah

Addresses

(Byte Mode)

20h

22h

24h

26h

28h

2Ah

2Ch

2Eh

30h

32h

34h

Table 5. CFI Query Identification String

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)

Am29LV160B

15

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