6

P/N:PM0549

REV. 1.3 , DEC. 24, 2001

MX29F200T/B

TABLE1. SOFTWARE COMMAND DEFINITIONS

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

Word

4

555H

AAH

2AAH

55H

555H

90H

ADI

DDI

Byte

4

AAAH AAH

555H

55H

AAAH 90H

ADI

DDI

Sector Protect

Word

4

555H

AAH

2AAH

55H

555H

90H

(SA)

XX00H

Verify

X02H

XX01H

Byte

4

AAAH AAH

555H

55H

AAAH 90H

(SA)

00

X04H

01

Porgram

Word

4

555H

AAH

2AAH

55H

555H

A0H

PA

PD

Byte

4

AAAH AAH

555H

55H

AAAH A0H

PA

PD

Chip Erase

Word

6

555H

AAH

2AAH

55H

555H

80H

555H

AAH

2AAH 55H

555H 10H

Byte

6

AAAH AAH

555H

55H

AAAH 80H

AAAH

AAH

555H

55H

AAAH 10H

Sector Erase

Word

6

555H

AAH

2AAH

55H

555H

80H

555H

AAH

2AAH 55H

SA

30H

Byte

6

AAAH AAH

555H

55H

AAAH 80H

AAAH

AAH

555H

55H

SA

30H

Sector Erase Suspend

1

XXXH B0H

Sector Erase Resume

1

XXXH 30H

Unlock for sector

6

555H

AAH

2AAH

55H

555H

80H

555H

AAH

2AAH 55H

555H 20H

protect/unprotect

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,51H/57H(x8) and 2251H/2257H(x16) 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 to the sector to be erased.

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

Address bit A11~A16=X=Don't care for all address commands except for Program Address (PA) and Sector Address (SA).

Write Sequence may be initiated with A11~A16 in either state.

4. For Sector Protection 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 ad-

dress 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.

Either of the two reset command sequences will reset

the device(when applicable).