Datasheet
33
4341H–MP3–10/07
AT8xC51SND2C/MP3B
MP3DAT ACh MP3 Data MPD7 MPD6 MPD5 MPD4 MPD3 MPD2 MPD1 MPD0
MP3ANC ADh MP3 Ancillary Data AND7 AND6 AND5 AND4 AND3 AND2 AND1 AND0
MP3VOL 9Eh MP3 Audio Volume Control Left - - - VOL4 VOL3 VOL2 VOL1 VOL0
MP3VOR 9Fh MP3 Audio Volume Control Right - - - VOR4 VOR3 VOR2 VOR1 VOR0
MP3BAS B4h MP3 Audio Bass Control - - - BAS4 BAS3 BAS2 BAS1 BAS0
MP3MED B5h MP3 Audio Medium Control - - - MED4 MED3 MED2 MED1 MED0
MP3TRE B6h MP3 Audio Treble Control - - - TRE4 TRE3 TRE2 TRE1 TRE0
MP3CLK EBh MP3 Clock Divider - - - MPCD4 MPCD3 MPCD2 MPCD1 MPCD0
Table 8-9. MP3 Decoder SFRs (Continued)
Mnemonic Add Name 7 6 5 4 3 2 1 0
Table 8-10. Audio Interface SFRs
Mnemonic Add Name 7 6 5 4 3 2 1 0
AUDCON0 9Ah Audio Control 0 JUST4 JUST3 JUST2 JUST1 JUST0 POL DSIZ HLR
AUDCON1 9Bh Audio Control 1 SRC DRQEN MSREQ MUDRN - DUP1 DUP0 AUDEN
AUDSTA 9Ch Audio Status SREQ UDRN AUBUSY - - - - -
AUDDAT 9Dh Audio Data AUD7 AUD6 AUD5 AUD4 AUD3 AUD2 AUD1 AUD0
AUDCLK ECh Audio Clock Divider - - - AUCD4 AUCD3 AUCD2 AUCD1 AUCD0
Table 8-11. USB Controller SFRs
Mnemonic Add Name 7 6 5 4 3 2 1 0
USBCON BCh USB Global Control USBE
SUSPCL
K
SDRMWU
P
- UPRSM RMWUPE CONFG FADDEN
USBADDR C6h USB Address FEN UADD6 UADD5 UADD4 UADD3 UADD2 UADD1 UADD0
USBINT BDh USB Global Interrupt - - WUPCPU EORINT SOFINT - - SPINT
USBIEN BEh USB Global Interrupt Enable - -
EWUPCP
U
EEORINT ESOFINT - - ESPINT
UEPNUM C7h USB Endpoint Number - - - - - - EPNUM1 EPNUM0
UEPCONX D4h USB Endpoint X Control EPEN NAKIEN NAKOUT NAKIN DTGL EPDIR EPTYPE1 EPTYPE0
UEPSTAX CEh USB Endpoint X Status DIR
RXOUTB
1
STALLRQ TXRDY STLCRC
RXSETU
P
RXOUTB
0
TXCMP
UEPRST D5h USB Endpoint Reset - - - - - EP2RST EP1RST EP0RST
UEPINT F8h USB Endpoint Interrupt - - - - - EP2INT EP1INT EP0INT
UEPIEN C2h USB Endpoint Interrupt Enable - - - - - EP2INTE EP1INTE EP0INTE
UEPDATX CFh USB Endpoint X FIFO Data FDAT7 FDAT6 FDAT5 FDAT4 FDAT3 FDAT2 FDAT1 FDAT0
UBYCTX E2h USB Endpoint X Byte Counter - BYCT6 BYCT5 BYCT4 BYCT3 BYCT2 BYCT1 BYCT0
UFNUML BAh USB Frame Number Low FNUM7 FNUM6 FNUM5 FNUM4 FNUM3 FNUM2 FNUM1 FNUM0
UFNUMH BBh USB Frame Number High - - CRCOK CRCERR - FNUM10 FNUM9 FNUM8
USBCLK EAh USB Clock Divider - - - - - - USBCD1 USBCD0