1997 Sep 01

11

Philips Semiconductors

Preliminary specification

Universal hi-fi audio processor for TV

TDA9859

Table 3

Function of the bits in Table 2

Table 4

Input selection

Note

1. Byte 8 (SCART channels): The value of X depends on MU1 and control bits P1 and P2.

Byte 9 (loudspeaker channels): see Table 5 for the programming of these bits. The value of X depends on the

selected effects and MU2.

BITS

FUNCTION

V00 to V05

volume control common for loudspeaker channel; see Table 9

VL0 to VL4

volume control for left loudspeaker channel; see Table 6

VR0 to VR4

volume control for right loudspeaker channel; see Table 6

BA0 to BA4

bass control for left and right loudspeaker channels; see Table 7

TR0 to TR3

treble control for left and right loudspeaker channels; see Table 8

I10 to I13

input selection for SCART channels; see Table 4

I20 to I23

input selection for loudspeaker channels; see Table 4

MU1 and MU2

mute control bits (MU1 for SCART channel, MU2 for loudspeaker channel)

0 = channel not muted

1 = channel muted

EF1, EF2 and ST

effect control bits for loudspeaker channel; see Table 5

P1 and P2

control bits for ports P1 (pin 2) and P2 (pin 31)

control bit = 0: ports P1 = LOW

control bit = 1: ports P1 = HIGH

INPUT

BITS OF DATA BYTE 8 AND 9

HEX

D7

D6

D5

D4

D3

D2

D1

D0

AUX LEFT

(1)

MU

(1)

(1)

1011

AUX RIGHT

(1)

MU

(1)

(1)

1001

AUX STEREO

(1)

MU

(1)

(1)

0111

SCART LEFT

(1)

MU

(1)

(1)

1010

SCART RIGHT

(1)

MU

(1)

(1)

0101

SCART STEREO

(1)

MU

(1)

(1)

0110

MAIN LEFT

(1)

MU

(1)

(1)

1100

MAIN RIGHT

(1)

MU

(1)

(1)

1101

MAIN STEREO

(1)

MU

(1)

(1)

1000