
160
AT8xC5132
4173A–8051–08/02
Power-down Mode.............................................................................................. 47
Registers............................................................................................................. 49
Timers/Counters ................................................................................. 50
Timer/Counter Operations .................................................................................. 50
Timer Clock Controller ........................................................................................ 50
Timer 0................................................................................................................ 51
Timer 1................................................................................................................ 53
Interrupt .............................................................................................................. 54
Registers..............................................................................................................55
Watchdog Timer .................................................................................. 58
Description.......................................................................................................... 58
Watchdog Clock Controller................................................................................. 58
Watchdog Operation............................................................................................59
Registers..............................................................................................................60
Audio Output Interface ....................................................................... 61
Description.......................................................................................................... 61
Clock Generator...................................................................................................62
Data Converter ................................................................................................... 62
Audio Buffer........................................................................................................ 63
Interrupt Request................................................................................................ 64
Voice or Sound Playing ...................................................................................... 64
Registers..............................................................................................................66
Universal Serial Bus ........................................................................... 68
Description...........................................................................................................69
USB Interrupt System ......................................................................................... 71
Registers..............................................................................................................73
MultiMedia Card Controller ................................................................ 82
Card Concept...................................................................................................... 82
Bus Concept ....................................................................................................... 82
Description.......................................................................................................... 87
Clock Generator.................................................................................................. 88
Command Line Controller................................................................................... 89
Data Line Controller.............................................................................................91
Interrupt ...............................................................................................................97
Registers..............................................................................................................98
IDE/ATAPI Interface .......................................................................... 104
Description........................................................................................................ 104
Registers........................................................................................................... 106
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