Sabre32 Reference Datasheet

CONFIDENTIAL ADVANCE

INFORMATION Rev. 1.2

February 11, 2010

www.esstech.com

14

Vista™

High Definition

Vista™

High Definition

SERIAL CONTROL INTERFACE

The registers inside the chip are programmed via an I2C interface. The diagram below shows the timing

for this interface. The chip address can be set to 2 different settings via the “ADDR” pin. The table below

summarizes this.

ADDR

CHIP ADDRESS

0

0x90

1

0x92

Table 7

Diagram 1

Notes:

1.

The “ADDR” pin is used to create the CHIP ADDRESS. (0x90, 0x92)

2.

The first byte after the chip address is the “ADDRESS” this is the register address.

3.

The second byte after the CHIP ADDRESS is the “DATA” this is the data to be programmed into

the register at the previous “ADDRESS”.