Registers
Table 74. MP3CON Register
MP3CON (S:AAh) – MP3 Decoder Control Register
7
6
5
4
3
2
1
0
MPEN
MPBBST
CRCEN
MSKANC
MSKREQ
MSKLAY
MSKSYN
MSKCRC
Bit
Bit
Number
Mnemonic Description
MP3 Decoder Enable Bit
7
6
MPEN
Set to enable the MP3 decoder.
Clear to disable the MP3 decoder.
Bass Boost Bit
MPBBST Set to enable the bass boost sound effect.
Clear to disable the bass boost sound effect.
CRC Check Enable Bit
Set to enable processing of frame that contains CRC error. Frame is played
whatever the error.
5
CRCEN
Clear to disable processing of frame that contains CRC error. Frame is skipped.
MPANC Flag Mask Bit
4
3
2
1
0
MSKANC Set to prevent the MPANC flag from generating a MP3 interrupt.
Clear to allow the MPANC flag to generate a MP3 interrupt.
MPREQ Flag Mask Bit
MSKREQ Set to prevent the MPREQ flag from generating a MP3 interrupt.
Clear to allow the MPREQ flag to generate a MP3 interrupt.
ERRLAY Flag Mask Bit
MSKLAY Set to prevent the ERRLAY flag from generating a MP3 interrupt.
Clear to allow the ERRLAY flag to generate a MP3 interrupt.
ERRSYN Flag Mask Bit
MSKSYN Set to prevent the ERRSYN flag from generating a MP3 interrupt.
Clear to allow the ERRSYN flag to generate a MP3 interrupt.
ERRCRC Flag Mask Bit
MSKCRC Set to prevent the ERRCRC flag from generating a MP3 interrupt.
Clear to allow the ERRCRC flag to generate a MP3 interrupt.
Reset Value = 0011 1111b
68
AT8xC51SND2C
4341D–MP3–04/05
ATMEL [ ATMEL ]
