ML6411 Просмотр технического описания (PDF) - Micro Linear Corporation

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ML6411

Programmable Video Digitizer with Selectable Gain and Clamps

Micro Linear Corporation 

ML6411

SDATA

START

tSET/START

tRISE

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

Figure 3. Definition of START & STOP on Serial Data Bus

tFALL

STOP

START

SDATA

SCLK

0

MSB

AD7

DEVICE ADDRESS

AD6

AD1 AD0

X

1

2

7

8

9

REGISTER ADDRESS

DATA FOR REGISTER A, B, C, D, E, OR F

MSB

MSB

RA2

RA1 RA0 DATABIT DATABIT DATABIT DATABIT DATABIT

X

4

3

2

1

0

10

11

12

13

14

15

16

17

18

STOP

SCLK:

SCLK:

SDATA:

SCLK:

SCLK:

SDATA:

SCLK:

SDATA;

9th pulse strobes dummy bit for ACK

Rising edge enables data transfer

Value set to AD6, Device Address (MSB-1)

Falling edge disables data transfer

Rising edge enables data transfer

Value set to AD7, Device Address MSB

Falling edge in prep for first address transfer

Falling edge with SCLK Hi means start of sequence

STOP

SCLK: 9th pulse strobes dummy bit for ACK

SCLK: Rising edge enables data transfer

SDATA: Value set to DATABIT 4, MSB of data

SCLK: Falling edge disables data transfer

SCLK: Rising edge enables data transfer

SDATA: Value set to RA3, MSB of Register Address

Figure 4. Definition of ADDRESS and DATA FORMAT on Serial Data Bus

18

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