6

P/N:PM0590

REV. 1.4, NOV. 21, 2002

MX29F016

First Bus

Second Bus

Third Bus

Fourth Bus

Fifth Bus

Sixth Bus

Command

Bus

Cycle

Cycle

Cycle

Cycle

Cycle

Cycle

Cycle

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Addr

Data

Reset

1

XXXH

F0H

Read

1

RA

RD

Read Silicon ID

4

555H

AAH

2AAH 55H

555H

90H

ADI

DDI

Sector Group Protect

4

555H

AAH

2AAH 55H

555H

90H

SGA

00H

Verify

X02H 01H

Program

4

555H

AAH

2AAH 55H

555H

A0H

PA

PD

Chip Erase

6

555H

AAH

2AAH 55H

555H

80H

555H

AAH

2AAH 55H

555H 10H

Sector Erase

6

555H

AAH

2AAH 55H

555H

80H

555H

AAH

2AAH 55H

SA

30H

Sector Erase Suspend

1

XXXH

B0H

Sector Erase Resume

1

XXXH

30H

TABLE1. SOFTWARE COMMAND DEFINITIONS

Note:

1. ADI = Address of Device identifier; A1=0, A0 = 0 for manufacture code,A1=0, A0 = 1 for device code.

(Refer to Table 3)

DDI = Data of Device identifier : C2H for manufacture code, ADH for device code.

X = X can be VIL or VIH

RA=Address of memory location to be read.

RD=Data to be read at location RA.

2.PA = Address of memory location to be programmed.

PD = Data to be programmed at location PA.

SA = Address of the sector to be erased.

SGA = Address of the Sector Group Address bits A18-A20 select a uniqul sector group.

3.The system should generate the following address patterns: 555H or 2AAH to Address A10~A0 .

Address bit A11~A20=X=Don't care for all address commands except for Program Address (PA) and Sector

Address (SA). Write Sequence may be initiated with A11~A20 in either state.

4.For Sector Group Protect Verify Operation : If read out data is 01H, it means the sector has been protected.If read

out data is 00H,it means the sector is still not being protected.

COMMAND DEFINITIONS

Device operations are selected by writing specific address

and data sequences into the command register. Writing

incorrect address and data values or writing them in the

improper sequence will reset the device to the read mode.

Table 1 defines the valid register command sequences.

Note that the Erase Suspend (B0H) and Erase Resume

(30H) commands are valid only while the Sector Erase

operation is in progress.