S71PL032J04 datasheet(72/196 Pages) SPANSION

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S29PL127J/S29PL064J/S29PL032J for MCP

S29PL127J_064J_032J_MCP_00_A3 August 12, 2004

Advance

I n f o rmation

operation using the DQ7 or DQ6 status bits, just as in the standard Word Program

operation. Refer to the Write Operation Status section for more information.

In the erase-suspend-read mode, the system can also issue the autoselect com-

mand sequence. The device allows reading autoselect codes even at addresses

within erasing sectors, since the codes are not stored in the memory array. When

the device exits the autoselect mode, the device reverts to the Erase Suspend

mode, and is ready for another valid operation. Refer to the Secured Silicon Sec-

tor Addresses and the Autoselect Command Sequence sections for details.

To resume the sector erase operation, the system must write the Erase Resume

command (address bits are don’t care). The bank address of the erase-sus-

pended bank is required when writing this command. Further writes of the

Resume command are ignored. Another Erase Suspend command can be written

after the chip has resumed erasing.

If the Persistent Sector Protection Mode Locking Bit is verified as programmed

without margin, the Persistent Sector Protection Mode Locking Bit Program Com-

mand should be reissued to improve program margin. If the Secured Silicon

Sector Protection Bit is verified as programmed without margin, the Secured Sil-

icon Sector Protection Bit Program Command should be reissued to improve

program margin. µµAfter programming a PPB, two additional cycles are needed

to determine whether the PPB has been programmed with margin. If the PPB has

been programmed without margin, the program command should be reissued to

improve the program margin. Also note that the total number of PPB program/

erase cycles is limited to 100 cycles. Cycling the PPBs beyond 100 cycles is not

guaranteed.

After erasing the PPBs, two additional cycles are needed to determine whether

the PPB has been erased with margin. If the PPBs has been erased without mar-

gin, the erase command should be reissued to improve the program margin. The

programming of either the PPB or DYB for a given sector or sector group can be

verified by writing a Sector Protection Status command to the device.

Note that there is no single command to independently verify the programming

of a DYB for a given sector group.

Command Definitions Tables

Table 17. Memory Array Command Definitions

Command (Notes)

Bus Cycles (Notes 1–4)

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Read (Note 5)

Reset (Note 6)

XXX

Autoselect

(Note 7)

Manufacturer ID

555

2AA

(BA)

555

(BA)

X00

Device ID (Note 10)

555

2AA

(BA)

555

(BA)

X01

227E

(BA)

X0E

(Note

10)

(BA)

X0F

(Note

10)

Secured Silicon Sector

Factory Protect (Note 8)

555

2AA

(BA)

555

X03

(Note

Sector Group Protect

Verify (Note 9)

555

AAA

2AA

(BA)

555

(SA)

X02

XX00/

XX01

Program

555

2AA

555

Chip Erase

555

2AA

555

2AA

555

Sector Erase

555

2AA

555

2AA

Program/Erase Suspend (Note 11)

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