AT80SND1C-ROTIL datasheet(207/210 Pages) ATMEL

207 / 210 page

AT8xC51SND1C

4109E–8051–06/03

Reset .................................................................................................................. 46

Reset Recommendation to Prevent Flash Corruption ........................................ 47

Idle Mode ............................................................................................................ 47

Power-down Mode.............................................................................................. 48

Registers.............................................................................................................. 50

Timers/Counters ................................................................................. 51

Timer/Counter Operations .................................................................................. 51

Timer Clock Controller ........................................................................................ 51

Timer 0................................................................................................................ 52

Timer 1................................................................................................................ 54

Interrupt .............................................................................................................. 55

Registers.............................................................................................................. 56

Watchdog Timer .................................................................................. 59

Description.......................................................................................................... 59

Watchdog Clock Controller ................................................................................. 59

Watchdog Operation............................................................................................ 60

Registers.............................................................................................................. 61

MP3 Decoder ....................................................................................... 62

Decoder .............................................................................................................. 62

Audio Controls ..................................................................................................... 64

Decoding Errors.................................................................................................. 64

Frame Information ...............................................................................................65

Ancillary Data...................................................................................................... 65

Interrupt ............................................................................................................... 66

Registers.............................................................................................................. 68

Audio Output Interface ....................................................................... 73

Description.......................................................................................................... 73

Clock Generator................................................................................................... 74

Data Converter ................................................................................................... 74

Audio Buffer ........................................................................................................ 75

MP3 Buffer.......................................................................................................... 76

Interrupt Request ................................................................................................ 76

MP3 Song Playing .............................................................................................. 76

Voice or Sound Playing ...................................................................................... 77

Registers.............................................................................................................. 78

Universal Serial Bus ........................................................................... 80

Description........................................................................................................... 81

Configuration ...................................................................................................... 84

Read/Write Data FIFO ........................................................................................ 86

Bulk/Interrupt Transactions................................................................................. 87

Control Transactions........................................................................................... 91

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