X9420

Characteristics subject to change without notice.

9 of 20

REV 1.1.6 7/30/02

www.xicor.com

Transfer Wiper Counter Register (WCR) to Data Register (DR)

Increment/Decrement Wiper Counter Register (WCR)

Read Status

CS

Falling

Edge

device type

identifier

device

addresses

instruction

opcode

register

addresses

CS

Rising

Edge

HIGH-VOLTAGE

WRITE CYCLE

0101110

A

0

1110

R

1

R

0

00

CS

Falling

Edge

device type

identifier

device

addresses

instruction

opcode

increment/decrement

(sent by master on SDA)

CS

Rising

Edge

0101110

A

0

00100000 I/D I/D

.

.

.

.

I/D I/D

CS

Falling

Edge

device type

identifier

device

addresses

instruction

opcode

Data Byte

(sent by X9420 on SO)

CS

Rising

Edge

0101110

A

0

010100010000000

W

I

P