Rainbow Electronics AT89C51SND1C - Manual (Page 68)

68
AT8xC51SND1C
4109E–8051–06/03
Registers Table 72. MP3CON Register
MP3CON (S:AAh) – MP3 Decoder Control Register
Reset Value = 0011 1111b
7 6 5 4 3 2 1 0
MPEN MPBBST CRCEN MSKANC MSKREQ MSKLAY MSKSYN MSKCRC
Bit
Number
Bit
Mnemonic Description
7 MPEN
MP3 Decoder Enable Bit
Set to enable the MP3 decoder.
Clear to disable the MP3 decoder.
6 MPBBST
Bass Boost Bit
Set to enable the bass boost sound effect.
Clear to disable the bass boost sound effect.
5 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.
4 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.
3 MSKREQ
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.
2 MSKLAY
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.
1 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.
0 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.