S71PL129JC0BAI9P2 datasheet(29/149 Pages) SPANSION

29 / 149 page

June 4, 2004 S29PL129J_MCP_00_A0

S29PL129J for MCP

Advance

Informatio n

Autoselect Mode

The autoselect mode provides manufacturer and device identification, and sector

protection verification, through identifier codes output on DQ7–DQ0. This mode

is primarily intended for programming equipment to automatically match a device

to be programmed with its corresponding programming algorithm. However, the

autoselect codes can also be accessed in-system through the command register.

When using programming equipment, the autoselect mode requires VID on ad-

dress pin A9. Address pins must be as shown in Table 5. In addition, when

verifying sector protection, the sector address must appear on the appropriate

highest order address bits. Table 5 shows the remaining address bits that are

don’t care. When all necessary bits have been set as required, the programming

equipment may then read the corresponding identifier code on DQ7–DQ0. How-

ever, the autoselect codes can also be accessed in-system through the command

out access to high voltage on the A9 pin. The command sequence is illustrated in

Table 12. Note: If a Bank Address (BA) (on address bits A21–A19) is asserted

during the third write cycle of the autoselect command, the host system can read

autoselect data that bank and then immediately read array data from the other

bank, without exiting the autoselect mode.

To access the autoselect codes in-system, the host system can issue the autose-

lect command via the command register, as shown in Table 12. This method does

not require VID. See “Autoselect Command Sequence” on page 46 for more

information.

SA2-124

1111100XXX

3E0000h–3E7FFFh

SA2-125

1111101XXX

3E8000h–3EFFFFh

SA2-126

1111110XXX

3F0000h–3F7FFFh

SA2-127

1111111000

3F8000h–3F8FFFh

SA2-128

1111111001

3F9000h–3F9FFFh

SA2-129

1111111010

3FA000h–3FAFFFh

SA2-130

1111111011

3FB000h–3FBFFFh

SA2-131

1111111100

3FC000h–3FCFFFh

SA2-132

1111111101

3FD000h–3FDFFFh

SA2-133

1111111110

3FE000h–3FEFFFh

SA2-134

1111111111

3FF000h–3FFFFFh

Table 4. Secured Silicon Sector Addresses

Sector Size

Address Range

Factory-Locked Area

64 words

000000h-00003Fh

Customer-Lockable Area

64 words

000040h-00007Fh

Table 3. S29PL129J Sector Architecture (Sheet 7 of 7)

Bank

Sector

CE1#

CE2#

Sector Address (A21-

A12)

Sector Size

(Kwords)

Address Range (x16)

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