Atmel AT85DVK-07 Especificaciones descargar pdf (Pagina 163)

163

AT85C51SND3Bx

7632A–MP3–03/06

Reset Value = 0000 0000b

Table 176. APELEV Register

APELEV (2.F7h) - Audio Processor Equalizer Level Status Register

76543210

- - - EQLEV4 EQLEV3 EQLEV2 EQLEV1 EQLEV0

Bit

Number

Bit

Mnemonic Description

7-5 -

Reserved

The value read from these bits is always 0. Do not set these bits.

4-0 EQLEV4:0

Equalizer Audio Level

00000b: min. level to 11111b: max. level.

Table 177. ACCON Register

ACCON (2.EAh) – Audio Codec Control Register

7 6 5 4 3 2 1 0

- AMBSEL AMBEN AISSEL AIEN AODRV - AOSSEL - AOEN -

Bit

Number

Bit

Mnemonic

Description

7 -

Reserved

The value read from this bit is always 0. Do not set this bit.

5 AMBSEL

Microphone Bias Select Bit

Set to select 1.5V bias output voltage in high or low voltage configuration.

Clear to select 2V bias output voltage in high voltage configuration.

5 AMBEN

Microphone Bias Enable Bit

Set to enable the microphone bias output.

Clear to disable the microphone bias output.

4 AISSEL

Audio Input Source Select Bit

Set to select the microphone as input source.

Clear to select the line inputs as input source.

3 AIEN

Audio Input Enable Bit

Set to enable the audio input system.

Clear to disable the audio input system.

AODRV

AT85C51SND3B2 and AT85C51SND3B3: Audio Output Drive Select Bit

Set to select the 32 Ω drive in high voltage configuration.

Clear to select the 50 KΩ drive in high or low voltage configuration.

AT85C51SND3B1: Reserved

The value read from this bit is always 0. Do not set this bit.

AOSSEL

AT85C51SND3B2 and AT85C51SND3B3: Audio Output Source Select Bit

Set to select the audio processor as output source.

Clear to select the line inputs as output source.

AT85C51SND3B1: Reserved

The value read from this bit is always 0. Do not set this bit.

1 2 ... 158 159 160 161 162 163 164 165 166 167 168 ... 262 263

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