CS42324 查看數據表（PDF） - Cirrus Logic

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CS42324

10-In, 6-Out, 2 Vrms Audio CODEC

Cirrus Logic 

CS42324

4.6 Device Control

In Software Mode, all functions and features may be controlled either by two-wire I²C or SPI Software Mode

interface. In Hardware Mode, a limited feature set may be controlled via hardware control pins.

4.6.1

Hardware Mode

A limited feature-set is available when the CS42324 powers up in Hardware Mode (see “Recommended

Power-Up Sequence, Hardware Mode” on page 38) and may be controlled via hardware control pins.

Table 9 shows a list of functions/features, the default configuration and the associated hardware control

available.

Feature/Function

Power Control

SP_ERROR

Auto Detect

Hardware Mode Feature Summary

Default Configuration

ADC

DAC1

DAC2

Powered Up

Powered Up

Powered Up

Enabled; Active low, open drain

Enabled

(256x/128xFs, 512x/256xFs only)

Serial Port Master/Slave and Speed Mode

(Selectable)

Async / Sync Mode

Synchronous only

MCLK Divide

(Selectable)

Serial Port Interface Format

Freeze Bit Settings

Serial Port 1

Serial Port 2

ADC Volume & Gain

Soft Ramp

Zero Cross

Mute

Invert

Volume

ADC High-Pass Filter

ADC High-Pass Filter Freeze

AIN Input Select to ADC

(SDOUT source)

DAC1 & DAC2 Volume & Gain

Soft Ramp

Zero Cross

Mute

Invert

Mixer

Volume

DAC1 & DAC2 De-Emphasis

AOUT1x

AOUT2x

AOUT3x

source

source

source

(Selectable)

Disabled

Enabled

Disabled

Disabled

Disabled

0 dB

Enabled

Continuous DC Subtraction

AIN1

Enabled

Disabled

Disabled

Disabled

Disabled (‘00’)

0 dB

Disabled

Output of DAC1

Output of DAC2

AIN1x

AOUTxx

MUTE

(Selectable)

Table 9. Hardware Mode Feature Summary

Hardware Control

-

-

-

-

-

“M0” and “M1”, pins 1 and 2

(see page 29)

-

“MDIV” pin 3

(see page 30)

“DIF” pin 5

(see page 32)

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

MUTE pin 4

(see page 37)

40

DS721A6

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