Datasheet

67
4341H–MP3–10/07
AT8xC51SND2C/MP3B
All interrupt flags but MPANC are cleared when reading MP3STA register. The MPANC flag is
cleared by hardware when the ancillary buffer becomes empty..
Figure 13-5. MP3 Decoder Interrupt System
MP3 Decoder
Interrupt Request
MPANC
MP3STA.7
MSKLAY
MP3CON.2
EMP3
IEN0.5
MSKANC
MP3CON.4
MSKREQ
MP3CON.3
ERRSYN
MP3STA.4
MSKCRC
MP3CON.0
MSKSYN
MP3CON.1
MPREQ
MP3STA.6
ERRCRC
MP3STA.3
ERRLAY
MP3STA.5