AT89C51SND2C Datasheet, PDF(32/236 Page) ATMEL Corporation – Single-Chip Flash Microcontroller with MP3 Decoder with Full Audio Interface

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AT89C51SND2C Datasheet, PDF (32/236 Pages) ATMEL Corporation – Single-Chip Flash Microcontroller with MP3 Decoder with Full Audio Interface

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Table 39. MP3 Decoder SFRs

Mnemonic Add Name

MP3CON AAh MP3 Control

MP3STA C8h MP3 Status

MP3STA1 AFh MP3 Status 1

MP3DAT ACh MP3 Data

MP3ANC ADh MP3 Ancillary Data

MP3VOL 9Eh MP3 Audio Volume Control Left

MP3VOR 9Fh MP3 Audio Volume Control Right

MP3BAS B4h MP3 Audio Bass Control

MP3MED B5h MP3 Audio Medium Control

MP3TRE B6h MP3 Audio Treble Control

MP3CLK EBh MP3 Clock Divider

7

MPEN

MPANC

-

MPD7

AND7

-

-

-

-

-

-

6

5

4

3

2

1

0

MPBBST CRCEN MSKANC MSKREQ MSKLAY MSKSYN MSKCRC

MPREQ ERRLAY ERRSYN ERRCRC MPFS1 MPFS0 MPVER

-

-

MPFREQ MPBREQ

-

-

-

MPD6

MPD5

MPD4

MPD3

MPD2

MPD1

MPD0

AND6

AND5

AND4

AND3

AND2

AND1

AND0

-

-

VOL4

VOL3

VOL2

VOL1

VOL0

-

-

VOR4

VOR3

VOR2

VOR1

VOR0

-

-

BAS4

BAS3

BAS2

BAS1

BAS0

-

-

MED4

MED3

MED2

MED1

MED0

-

-

TRE4

TRE3

TRE2

TRE1

TRE0

-

-

MPCD4 MPCD3 MPCD2 MPCD1 MPCD0

Table 40. Audio Interface SFRs

Mnemonic Add Name

AUDCON0 9Ah Audio Control 0

AUDCON1 9Bh Audio Control 1

AUDSTA 9Ch Audio Status

AUDDAT 9Dh Audio Data

AUDCLK ECh Audio Clock Divider

7

JUST4

SRC

SREQ

AUD7

-

6

5

4

JUST3 JUST2 JUST1

DRQEN MSREQ MUDRN

UDRN AUBUSY

-

AUD6

AUD5

AUD4

-

-

AUCD4

3

JUST0

-

-

AUD3

AUCD3

2

POL

DUP1

-

AUD2

AUCD2

1

DSIZ

DUP0

-

AUD1

AUCD1

0

HLR

AUDEN

-

AUD0

AUCD0

32 AT8xC51SND2C

4341EâMP3â06/05

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