S29AL032D datasheet(33/69 Pages) SPANSION

33 / 69 page

June 13, 2005 S29AL032D_00_A3

S29AL032D

Ad vance

Info rmat i o n

Command Definitions

Writing specific address and data commands or sequences into the command register initiates

device operations. Table 17 on page 38 defines the valid register command sequences. Writing

incorrect address and data values or writing them in the improper sequence resets the de-

vice 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 appropriate tim-

ing diagrams in the “AC Characteristics” section.

Reading Array Data

The device is automatically set to reading array data after device power-up. No commands are

required to retrieve data. The device is also ready to read array data after completing an Embed-

ded Program or Embedded Erase algorithm.

After the device accepts an Erase Suspend command, the device enters the Erase Suspend mode.

The system can read array data using the standard read timings, except that if it reads at an ad-

dress within erase-suspended sectors, the device outputs status data. After completing a

programming operation in the Erase Suspend mode, the system may once again read array data

with the same exception. See Erase Suspend/Erase Resume Commands on page 35 for more in-

formation on this mode.

The system must issue the reset command to re-enable the device for reading array data if DQ5

goes high, or while in the autoselect mode. See the Reset Command on page 32 section, next.

See also Requirements for Reading Array Data on page 11 for more information. The Read

Operations on page 50 provides the read parameters, and Figure 14, on page 50 shows the timing

diagram.

48h

90h

0001h

Sector Temporary Unprotect

00 = Not Supported, 01 = Supported

49h

92h

0004h

Sector Protect/Unprotect scheme

01 = 29F040 mode, 02 = 29F016 mode,

03 = 29F400 mode, 04 = 29LV800A mode

4Ah

94h

0000h

Simultaneous Operation

00 = Not Supported, 01 = Supported

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

00B5h

ACC (Acceleration) Supply Minimum

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

4Eh

9Ch

00C5h

ACC (Acceleration) Supply Maximum

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

4Fh

9Eh

000xh

Top/Bottom Boot Sector Flag

(0 = Model 00, 2 = Model 03, 3 = Model 04)

Table 15. Primary Vendor-Specific Extended Query (Sheet 2 of 2)

Addresses

(Models 03, 04

Byte Mode

Only)

Data

Description

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