STA310 datasheet(75/90 Pages) STMICROELECTRONICS

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STA310

Description:

This register sets the balance between the original

sound and its delayed version for the echo and cho-

rus effects according to the formula.

echo (or chorus) output = original_sound * (1 - bal-

ance) + delayed_sound * balance

where balance = Balance[7:0] / 255

where balance can vary in the range of 0 to 1. A bal-

ance limit of 0.5 is recommended. BALANCE[7:0] =

balance * 255.

KAR_VMUTE

Voice channel mute

Address: 0x8F

Type: R/W

Reset value: 0x00

Description:

This register mutes the voice channel: ’0’ means not

muted and ’1’ means muted.

KAR_PLAY

Mute of voice and music

Address: 0x90

Type: R/W

Reset value: 0x01

Description:

This register mutes the voice and the music channels

simultaneously: PLAY = ’0’ means muted and ’1’

means playing. The registers

and KAR_VMUTE

have priority for muting.

KAR_MODE

Operating mode selection

Address + 0x91

Type: R/W

Reset value: 0x01

Description:

This register specifies the working mode of the

Karaoke module.

KAR_DIN_CTL

Control of voice channel

Address: 0x92

Type: R/W

Reset Value: 0x00

Description:

This register specifies the input format for configuring

7654321

Reserved

MUTE

321

Reserved

PLAY

65432

Reserved

KAR_MODE[1:0]

Bitfield

Description

KAR_MODE

[1:0]

00: Karaoke processor in waiting mode.

This is the default mode after a hardware

reset, total or partial software reset. This

mode is used to programme all the

registers at first initialization.

01: Karaoke processor running.

10: Partial Software reset. This resets the

internal DSP program but keep the

partial reset. When the partial reset is

finished, KAR_MODE[1:0] is automatically

set to ’01’.

11: Total Software reset. The program is

reset and the registers values are

changed back to their reset default values.

Reserv

JUSTIF DELAY WS_P

CLK_P

WS[1:0]

DINEN

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