AM29DL322D datasheet(23/54 Pages) AMD

23 / 54 page

Am29DL322D/323D/324D

June 10, 2003

Table 13.

Primary Vendor-Specific Extended Query

Note:

The number of sectors in Bank 2 is device dependent.

Am29DL322 = 38h, Am29DL323 = 30h, Am29DL324 = 20h

COMMAND DEFINITIONS

Writing specific address and data commands or se-

quences into the command register initiates device op-

erations. Table 14 defines the valid register command

sequences. Writing incorrect address and data val-

ues or writing them in the improper sequence resets

the device to reading array data.

All addresses are latched on the falling edge of WE#

or CE#, whichever happens later. All data is latched

on the rising edge of WE# or CE#, whichever happens

first. Refer to the AC Characteristics section for timing

diagrams.

Reading Array Data

The device is automatically set to reading array data

after device power-up. No commands are required to

retrieve data. Each bank is ready to read array data

after completing an Embedded Program or Embedded

Erase algorithm.

After the device accepts an Erase Suspend command,

the corresponding bank enters the erase-sus-

pend-read mode, after which the system can read

data from any non-erase-suspended sector within the

same bank. After completing a programming operation

in the Erase Suspend mode, the system may once

Addresses

(Word Mode)

Addresses

(Byte Mode)

Data

Description

40h

41h

42h

80h

82h

84h

0050h

0052h

0049h

Query-unique ASCII string “PRI”

43h

86h

0031h

Major version number, ASCII

44h

88h

0031h

Minor version number, ASCII

45h

8Ah

0000h

Address Sensitive Unlock (Bits 1-0)

0 = Required, 1 = Not Required

Silicon Revision Number (Bits 7-2)

46h

8Ch

0002h

Erase Suspend

0 = Not Supported, 1 = To Read Only, 2 = To Read & Write

47h

8Eh

0001h

Sector Protect

0 = Not Supported, X = Number of sectors in per group

48h

90h

0001h

Sector Temporary Unprotect

00 = Not Supported, 01 = Supported

49h

92h

0004h

Sector Protect/Unprotect scheme

04 = 29LV800 mode

4Ah

94h

00XXh

(See Note)

Simultaneous Operation

00 = Not Supported, X = Number of Sectors in Bank 2 (Uniform Bank)

4Bh

96h

0000h

Burst Mode Type

00 = Not Supported, 01 = Supported

4Ch

98h

0000h

Page Mode Type

00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page

4Dh

9Ah

0085h

ACC (Acceleration) Supply Minimum

00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV

4Eh

9Ch

0095h

ACC (Acceleration) Supply Maximum

00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV

4Fh

9Eh

000Xh

Top/Bottom Boot Sector Flag

02h = Bottom Boot Device, 03h = Top Boot Device

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