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Product(s)

- Obsolete

Product(s)

Obsolete

Product(s)

- Obsolete

Product(s)

I²C BUS SELECTION

STV6618

12/24

3

I²C BUS SELECTION

Data transfers follow the usual I²C format; i.e. after the start condition (S), a 7-bit slave address is

sent, followed by an eight-bit data direction bit (W). An 8-bit sub-address is sent to select a register,

followed by an 8-bit data word to be included in the register. The IC’s I²C bus decoder enables the

automatic incrementation mode in write mode.

String Format

Write only mode (S = Start condition, P = Stop condition, A = Acknowledge)

Read only mode

Slave Address

Auto Increment Mode

3.1

I²C Bus Addresses

Write Address: 1001 0100 = 94(hex)

Input Signal Summary (Write Mode)

S

Slave Address

0

A

Sub-address

A

Data

A

P

S

Slave Address

1

A

Data

A

P

Address

A7A6A5

A4A3A2

A1

Value

100

1010

S

Slave Address

0

A

Sub-address

A

DATA0

A

DATA1

A

....

DATAn

A

P

Sub-Address

Sub-Address +1 Sub-Address + N

Reg

Addr

(Hex)

Data

d7

d6

d5

d4

d3

d2

d1

d0

Y/CVBS and C Output Selection

00

DigOUT6

Not Used

TV Y/CVBS Output Selection

Recorder Y/CVBS Output Selection

01

DigOUT5

Not Used

Auxiliary C Output Selection

Auxiliary Y/CVBS Output Selection

RGB/YPrPb & Fast Blanking Selection

02

RGB/YPrPb

High Impedance State

RGB or YPrPb or C mode

Selection

Auxiliary or Encoder

Selection

Fast Blanking Selection

Digital Outputs

03

DIGOUT4

DIGOUT3

DIGOUT2 Control

DIGOUT1 Control

C_GATE

Control