ML6461CS 데이터 시트보기 (PDF) - Micro Linear Corporation

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ML6461CS

CCIR656 NTSC Video Encoder

Micro Linear Corporation 

ML6461

SDATA

START

tRISE

tSET/START

SCLK

All Other SDATA Transitions Must Occur While SCLK is Low

START: A Falling Edge on the SDATA While SCLK is Held High

STOP: A Rising Edge on the SDATA While SCLK is Held High

tFALL

Figure 15. Definition of START & STOP on Serial Data Bus

STOP

START

SDATA

MSB

DEVICE ADDRESS

A7

A6

A1

A0

X

SCLK

0

1

2

7

8

9

MSB

FUNCTION ADDRESS

A7

A6

A1

A0

X

10

11

16

17

18

SCLK:

SCLK:

SDATA:

SCLK:

SCLK:

SDATA:

SCLK:

SDATA;

9th pulse strobes dummy bit for ACK

Rising edge enables data transfer

Value set to A6, Device Address (MSB-1)

Falling edge disables data transfer

Rising edge enables data transfer

Value set to A7, Device Address MSB

Falling edge in prep for first address transfer

Falling edge with SCLK Hi means start of sequence

SCLK:

SCLK:

SDATA:

SCLK:

SCLK:

SDATA:

9th pulse strobes dummy bit for ACK

Rising edge enables data transfer

Value set to D6, Data MSB-1

Falling edge disables data transfer

Rising edge enables data transfer

Value set to D7, Data MSB

Figure 16. Definition of ADDRESS FORMAT on Serial Data Bus

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