STV0299B datasheet(21/36 Pages) STMICROELECTRONICS

21 / 36 page

STV0299B

5REGISTER LIST (continued)

21/36

DAC REGISTERS (refer to

Section 4.1.11 on page 10)

DACR1 (MSB)

[7:5]

DAC Mode

This field controls the DAC:

000: Functions as output port. The DAC output permanently 0.

001: Functions as output port. DAC output permanently 1.

010: High impedance mode.

100: Functions as DAC. Duty cycle modulated at fCLK/16.

101: Functions as DAC. Duty cycle modulated at fCLK/4.

110: Functions as DAC. Duty cycle modulated at fCLK.

Other: Reserved functions.

This bit must be programmed to zero.

[3:0]

DAC: 4 MSB

DACR2 (LSB)

[7:0]

DAC: 8 LSB

DISEQC AND LOCK CONTROL REGISTER (refer to

Section 4.1.12 on page 10)

DiSEqC

[7:6]

Lock Output

00: 0

01: 1

10: CF

11: LK

Lock Configuration

1: Open drain

0: Push-pull

[4:3]

These bits must be programmed to zero.

DiSEqC/Unmodulated Burst

[1:0]

DiSEqC Mode

DISEQC FIFO (refer to

Section 4.1.12 on page 10)

DiSEqC FIFO

[7:0]

FIFO byte

DISEQC STATUS (refer to

Section 4.1.12 on page 10)

DiSEqC

Status

Input Port: This bit gives the input level on the pin IP0. It is an input

port for general use purposes.

SDAT Input State

[5:2]

Not relevant.

FIFO empty

FIFO full

RESERVED

Reserved

Name

HEX

Address

Reset

Value

Bit

Position

Signal Description

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