CS42324 datasheet(40/71 Pages) CIRRUS

40 / 71 page

DS721A6

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.

Hardware Mode Feature Summary

Feature/Function

Default Configuration

Hardware Control

Power Control

ADC

DAC1

DAC2

Powered Up

SP_ERROR

Enabled; Active low, open drain

Auto Detect

Enabled

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

Serial Port Master/Slave and Speed Mode

(Selectable)

“M0” and “M1”, pins 1 and 2

(see page 29)

Async / Sync Mode

Synchronous only

MCLK Divide

(Selectable)

“MDIV” pin 3

(see page 30)

Serial Port Interface Format

Serial Port 1

Serial Port 2

(Selectable)

“DIF” pin 5

(see page 32)

Freeze Bit Settings

Disabled

ADC Volume & Gain

Soft Ramp

Zero Cross

Mute

Invert

Volume

Enabled

Disabled

0 dB

ADC High-Pass Filter

ADC High-Pass Filter Freeze

Enabled

Continuous DC Subtraction

AIN Input Select to ADC

(SDOUT source)

AIN1

DAC1 & DAC2 Volume & Gain

Soft Ramp

Zero Cross

Mute

Invert

Mixer

Volume

Enabled

Disabled

Disabled (‘00’)

0 dB

DAC1 & DAC2 De-Emphasis

Disabled

AOUT1x

source

Output of DAC1

AOUT2x

source

Output of DAC2

AOUT3x

source

AIN1x

AOUTxx

MUTE

(Selectable)

MUTE pin 4

(see page 37)

Table 9. Hardware Mode Feature Summary

CS42324 Fiches technique(PDF) 40 Page - Cirrus Logic

CS42324 Fiches technique(HTML) 40 Page - Cirrus Logic

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

Fiches technique Télécharger

Lien URL