ADP315PC87570 National Semiconductor, ADP315PC87570 Datasheet - Page 11

• Manufacturer Part Number: ADP315PC87570
• Description: Keyboard and Power Management Controller
• Manufacturer: National Semiconductor

15.0
16.0
14.4
14.5
Timer and WATCHDOG (TWD)
15.1
15.2
15.3
15.4
15.5
15.6
15.7
Analog to Digital Converter (ADC)
16.1
16.2
14.3.4
14.3.5
TIMER/COUNTER AND ACTION UNIT .................................................................................. 108
14.4.1
14.4.2
14.4.3
MFT16 REGISTERS ................................................................................................................ 114
14.5.1
14.5.2
14.5.3
14.5.4
14.5.5
14.5.6
14.5.7
14.5.8
14.5.9
FEATURES .............................................................................................................................. 116
FUNCTIONAL DESCRIPTION ................................................................................................ 116
15.2.1
15.2.2
15.2.3
TWD CONTROL AND CONFIGURATION .............................................................................. 117
OPERATION IN IDLE MODE .................................................................................................. 117
TWD REGISTERS ................................................................................................................... 117
15.6.1
15.6.2
15.6.3
15.6.4
15.6.5
15.6.6
USAGE HINTS ........................................................................................................................ 118
FEATURES .............................................................................................................................. 119
FUNCTIONAL DESCRIPTION ................................................................................................ 119
16.2.1
16.2.2
16.2.3
16.2.4
16.2.5
16.2.6
16.2.7
WATCHDOG OPERATION .................................................................................................... 117
Slow Speed Clock ..................................................................................................... 107
Counter Clock Source Select .................................................................................... 108
Operation Modes ....................................................................................................... 108
Timer Interrupts ......................................................................................................... 113
Timer I/O Functions ................................................................................................... 113
Clock Prescaler Register (TPRSC) ........................................................................... 114
Clock Unit Control Register (TCKC) .......................................................................... 114
Timer/Counter Register 1 (TCNT1) ........................................................................... 114
Timer/Counter Register 2 (TCNT2) ........................................................................... 114
Reload/Capture Register A(TCRA) ........................................................................... 114
Reload/Capture Register B (TCRB) .......................................................................... 114
Timer Mode Control Register (TCTRL) ..................................................................... 114
Timer Interrupt Control Register (TICTL) ................................................................... 115
Timer Interrupt Clear Register (TICLR) ..................................................................... 115
Input Clock ................................................................................................................. 116
Pre-Scale ................................................................................................................... 116
TWD Timer 0 ............................................................................................................. 116
Timer and WATCHDOG Configuration Registers (TWCFG) ..................................... 117
Timer and Watchdog Clock Pre-Scaler Register (TWCP) ......................................... 117
TWD Timer 0 Register (TWDT0) ............................................................................... 118
TWDT0 Control and Status Register (T0CSR) .......................................................... 118
WATCHDOG Count Register (WDCNT) ................................................................... 118
WATCHDOG Service Data Match Register (WDSDM) ............................................. 118
Reset ......................................................................................................................... 120
Reference Voltage ..................................................................................................... 120
Input Signal Range .................................................................................................... 120
ADC Clock ................................................................................................................. 120
Initializing and Enabling the ADC .............................................................................. 120
ADC Operation .......................................................................................................... 121
Disabling the ADC to Save Power ............................................................................. 121
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