Rainbow Electronics T89C51AC2 - Manual (Page 109)

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T89C51AC2
Rev. B – 19-Dec-01
14.1 WatchDog Programming ......................................................................... 66
14.2 WatchDog Timer during Power down mode and Idle .............................. 67
15. Programmable Counter Array PCA ............................................................... 69
15.1 PCA Timer ............................................................................................... 69
15.2 PCA modules .......................................................................................... 70
15.3 PCA Interrupt ........................................................................................... 71
15.4 PCA Capture Mode ................................................................................. 71
15.5 16-bit Software Timer Mode .................................................................... 72
15.6 High Speed Output Mode ........................................................................ 73
15.7 Pulse Width Modulator Mode .................................................................. 73
15.8 PCA Watchdog Timer .............................................................................. 74
15.9 PCA Registers ......................................................................................... 75
16. Analog-to-Digital Converter (ADC) ................................................................ 80
16.1 Features .................................................................................................. 80
16.2 ADC Port1 I/O Functions ......................................................................... 80
16.3 ADC Converter Operation ....................................................................... 82
16.4 Voltage Conversion ................................................................................. 82
16.5 Clock Selection ........................................................................................ 82
16.6 ADC Standby Mode ................................................................................. 83
16.7 IT ADC management ............................................................................... 83
16.8 Routines examples .................................................................................. 83
16.9 Registers ................................................................................................. 84
17. Interrupt System ............................................................................................ 86
17.1 Registers ................................................................................................. 88
18. Electrical Characteristics ............................................................................... 94
18.1 Absolute Maximum Ratings (1) ............................................................... 94
18.2 DC Parameters for Standard Voltage ...................................................... 94
18.3 DC Parameters for A/D Converter ........................................................... 97
18.4 AC Parameters ........................................................................................ 97
19. Ordering Information .................................................................................... 107