M65667FP

REJ03F0185-0201 Rev.2.01 Mar 31, 2008

Page 9 of 12

The Examples of Serial Byte Transmission Format

(1) The writing operation of the setting data (AAh) into M65667FP internal address of 00h

Transmission

activation

Confirmation

of bus free

(DATA = 'H')

is applied

on CLK for the

release of

output state

S24h

A

00h

A

AD E

AAh

Yes

No

S: Operation of serial transmission start

A: Acknowledge detection

D: Dummy clock feed for the release of

acknowledge output state

E: Operation of serial transmission completion

(2) The writing operation of the setting data (FFh, 80h, EEh) into M65667FP internal address of 04h to 06h

Transmission

activation

Confirmation

of bus free

(DATA = 'H')

is applied

on CLK for the

release of

output state

S24h

A

04h

A

A

80h

A

EEh

A D E

FFh

Yes

No

(3) The reading operation of the setting data from M65667FP internal address of 00h

Transmission

activation

Confirmation

of bus free

(DATA = 'H')

is applied

on CLK for the

release of

output state

S24h

A

00h

D

A25h

E$$h

SA

A

Yes

No

A: Bus free operation by the master (micro processor)

(4) The reading operation of the setting data from M65667FP internal address of 04h to 06h

A: Output L operation by the master (micro processor)

Transmission

activation

Confirmation

of bus free

(DATA = 'H')

is applied

on CLK for the

release of

output state

S24h

A

04h

D

A25h

E$$h

SA

$$h

A

$$h

AA

Yes

No