S29AL032D datasheet(23/69 Pages) SPANSION

23 / 69 page

June 13, 2005 S29AL032D_00_A3

S29AL032D

Ad vance

Info rmat i o n

The device is shipped with all sectors unprotected. Spansion offers the option of programming

and protecting sectors at its factory prior to shipping the device through the Spansion Express-

Flash™ Service. Contact a Spansion representative for further details.

It is possible to determine whether a sector is protected or unprotected. See “Autoselect Mode”

for details.

Sector protection/unprotection can be implemented via two methods.

The primary method requires VID on the RESET# pin only, and can be implemented either in-sys-

tem or via programming equipment. Figure 2, on page 25 shows the algorithms and Figure 26,

on page 59 shows the timing diagram. This method uses standard microprocessor bus cycle tim-

ing. For sector unprotect, all unprotected sectors must first be protected prior to the first sector

unprotect write cycle.

The alternate method intended only for programming equipment requires VID on address pin A9

and OE#. This method is compatible with programmer routines written for earlier 3.0 volt-only

Spansion flash devices. Details on this method are provided in a supplement, publication number

21468. Contact a Spansion representative to request a copy.

Table 9. Sector Block Addresses for Protection/Unprotection — Model 00

Sector/Sector Block

A21–A16

Sector/Sector Block Size

SA0

000000

64 Kbytes

SA1-SA3

000001,000010,

000011

192 (3x64) Kbytes

SA4-SA7

000100, 000101,

000110, 000111

256 (4x64) Kbytes

SA8-SA11

001000, 001001,

001010, 001011

256 (4x64) Kbytes

SA12-SA15

001100, 001101,

001110, 001111

256 (4x64) Kbytes

SA16-SA19

010000, 010001,

010010, 010011

256 (4x64) Kbytes

SA20-SA23

010100, 010101,

010110, 010111

256 (4x64) Kbytes

SA24-SA27

011000, 011001,

011010, 011011

256 (4x64) Kbytes

SA28-SA31

011100, 011101,

011110, 011111

256 (4x64) Kbytes

SA32-SA35

100000, 100001,

100010, 100011

256 (4x64) Kbytes

SA36-SA39

100100, 100101,

100110, 100111

256 (4x64) Kbytes

SA40-SA43

101000, 101001,

101010, 101011

256 (4x64) Kbytes

SA44-SA47

101100, 101101,

101110, 101111

256 (4x64) Kbytes

SA48-SA51

110000, 110001,

110010, 110011

256 (4x64) Kbytes

SA52-SA55

110100, 110101,

110110, 110111

256 (4x64) Kbytes

SA56-SA59

111000, 111001,

111010, 111011

256 (4x64) Kbytes

SA60-SA62

111100, 111101,

111110

192 (4x64) Kbytes

SA63

111111

64 Kbytes

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