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AT83SND1CXXX-ROTIL Scheda tecnica(PDF) 69 Page - ATMEL Corporation

Il numero della parte AT83SND1CXXX-ROTIL
Spiegazioni elettronici  Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
PDF  212 Pages
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Produttore elettronici  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83SND1CXXX-ROTIL Scheda tecnica(HTML) 69 Page - ATMEL Corporation

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69
4109J–8051–10/06
AT8xC51SND1C
Reset Value = 0011 1111b
Table 63. MP3STA Register
MP3STA (S:C8h Read Only) – MP3 Decoder Status Register
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.
3MSKREQ
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.
2MSKLAY
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.
7654
3210
MPANC
MPREQ
ERRLAY
ERRSYN
ERRCRC
MPFS1
MPFS0
MPVER
Bit
Number
Bit
Mnemonic
Description
7MPANC
Ancillary Data Available Flag
Set by hardware as soon as one ancillary data is available (buffer not empty).
Cleared by hardware when no more ancillary data is available (buffer empty).
6MPREQ
MP3 Data Request Flag
Set by hardware when MP3 decoder request data.
Cleared when reading MP3STA.
5
ERRLAY
Invalid Layer Error Flag
Set by hardware when an invalid layer is encountered.
Cleared when reading MP3STA.
4
ERRSYN
Frame Synchronization Error Flag
Set by hardware when no synchronization pattern is encountered in a frame.
Cleared when reading MP3STA.
3
ERRCRC
CRC Error Flag
Set by hardware when a frame handling CRC is corrupted.
Cleared when reading MP3STA.
Bit
Number
Bit
Mnemonic
Description



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