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M58LW032D

Table 4. Commands

Note: 1. X Don’t Care; RA Read Address, RD Read Data, IDA Identifier Address, IDD Identifier Data, SRD Status Register Data, PA Program

Address; PD Program Data, QA Query Address, QD Query Data, BA Any address in the Block, PRA Protection register address,

PRD Protection Register Data, CC Configuration Code.

2. For Identifier addresses and data refer to Table 6., Read Electronic Signature.

3. For Query Address and Data refer to APPENDIX B., COMMON FLASH INTERFACE - CFI.

Table 5. Configuration Codes

Note: 1. DQ2-DQ7 are reserved

2. When STS pin is pulsing it remains Low for a typical time of 250ns.

Command

Bus Operations

1st Cycle

2nd Cycle

Subsequent

Final

Op.

Addr. Data

Op.

Addr.

Data

Op.

Addr. Data Op.

Addr. Data

Read Memory Array

≥ 2 Write

X

FFh

Read

RA

RD

Read Electronic Signature

≥ 2 Write

X

90h

Read

Read Status Register

2

Write

X

70h

Read

X

SRD

Read Query

≥ 2 Write

X

98h

Read

Clear Status Register

1

Write

X

50h

Block Erase

2

Write

X

20h

Write

BA

D0

Word/Byte Program

2

Write

X

40h

10h

Write

PA

PD

Write to Buffer and

Program

4 + N Write

BA

E8h

Write

BA

N

Write

PA

PD Write

X

D0h

Program/Erase Suspend

1

Write

X

B0h

Program/Erase Resume

1

Write

X

D0h

Block Protect

2

Write

X

60h

Write

BA

01h

Blocks Unprotect

2

Write

X

60h

Write

X

D0h

Protection Register

Program

2Write

X

C0h

Write

PRA

PRD

Configure STS command

2

Write

X

B8h

Write

X

CC

Configuration

Code

DQ1

DQ2

Mode

STS Pin

Description

00h

0

0

Ready/Busy

operations

Hi-Z when the

memory is ready

The STS pin is Low during Program and

Erase operations and high impedance when

the memory is ready for any Read, Program

or Erase operation.

01h

0

1

Pulse on Erase

complete

Pulse Low then

High when

operation

Supplies a system interrupt pulse at the end

of a Block Erase operation.

02h

1

0

Pulse on

Program

complete

Supplies a system interrupt pulse at the end

of a Program operation.

03h

1

1

Pulse on Erase

or Program

complete

Supplies a system interrupt pulse at the end

of a Block Erase or Program operation.