AT83SND2CMP3B datasheet(69/241 Pages) ATMEL

69 / 241 page

4341F–MP3–03/06

AT8xC51SND2C/MP3B

13.7

Registers

Table 13-5.

MP3CON Register

MP3CON (S:AAh) – MP3 Decoder Control Register

Reset Value = 0011 1111b

543

210

MPEN

MPBBST

CRCEN

MSKANC

MSKREQ

MSKLAY

MSKSYN

MSKCRC

Bit Number

Bit

Mnemonic

Description

7MPEN

MP3 Decoder Enable Bit

Set to enable the MP3 decoder.

Clear to disable the MP3 decoder.

MPBBST

Bass Boost Bit

Set to enable the bass boost sound effect.

Clear to disable the bass boost sound effect.

CRCEN

CRC Check Enable Bit

Set to enable processing of frame that contains CRC error. Frame is played whatever

the error.

Clear to disable processing of frame that contains CRC error. Frame is skipped.

MSKANC

MPANC Flag Mask Bit

Set to prevent the MPANC flag from generating a MP3 interrupt.

Clear to allow the MPANC flag to generate a MP3 interrupt.

3MSKREQ

MPREQ Flag Mask Bit

Set to prevent the MPREQ flag from generating a MP3 interrupt.

Clear to allow the MPREQ flag to generate a MP3 interrupt.

2MSKLAY

ERRLAY Flag Mask Bit

Set to prevent the ERRLAY flag from generating a MP3 interrupt.

Clear to allow the ERRLAY flag to generate a MP3 interrupt.

MSKSYN

ERRSYN Flag Mask Bit

Set to prevent the ERRSYN flag from generating a MP3 interrupt.

Clear to allow the ERRSYN flag to generate a MP3 interrupt.

MSKCRC

ERRCRC Flag Mask Bit

Set to prevent the ERRCRC flag from generating a MP3 interrupt.

Clear to allow the ERRCRC flag to generate a MP3 interrupt.

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