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PC87591E Datasheet(PDF) 11 Page - National Semiconductor (TI) |
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PC87591E Datasheet(HTML) 11 Page - National Semiconductor (TI) |
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11 / 437 page  Table of Contents (Continued) Revision 1.07 11 www.national.com Timer Interrupt Control Register (TnICTL) ......................................................... 145 Timer Interrupt Clear Register (TnICLR) ........................................................... 146 4.8 PULSE WIDTH MODULATOR (PWM) .................................................................................... 147 4.8.1 Features .................................................................................................................... 147 4.8.2 Functional Description ............................................................................................... 147 4.8.3 Cycle Time and Duty Cycle Calculation .................................................................... 148 4.8.4 Power Modes ............................................................................................................. 148 4.8.5 PWM Registers .......................................................................................................... 148 PWM Register Map ............................................................................................ 148 Clock Pre-Scaler Register (PRSC) .................................................................... 148 Cycle Time Register (CTR) ................................................................................ 149 Duty Cycle Registers 0 to 7 (DCRi) ................................................................... 149 PWM Polarity Register (PWMPOL) ................................................................... 150 PWM Control Register (PWMCNT) ................................................................... 150 4.9 UNIVERSAL SYNCHRONOUS/ASYNCHRONOUS RECEIVER-TRANSMITTER (USART) .. 151 4.9.1 Features .................................................................................................................... 151 4.9.2 Functional Overview .................................................................................................. 151 4.9.3 Operation ................................................................................................................... 153 4.9.4 USART Registers ...................................................................................................... 158 USART Register Map ........................................................................................ 158 Receive Data Buffer Register (URBUF) ............................................................ 158 Transmit Data Buffer Register (UTBUF) ............................................................ 158 Baud Rate Pre-Scaler Register (UPSR) ............................................................ 158 Baud Rate Divisor Register (UBAUD) ............................................................... 158 Frame Select Register (UFRS) .......................................................................... 159 Mode Select Register (UMDSL) ........................................................................ 160 Status Register (USTAT) ................................................................................... 161 Interrupt Control Register (UICTRL) .................................................................. 162 4.9.5 Usage Hints ............................................................................................................... 162 4.10 TIMER AND WATCHDOG (TWD) ........................................................................................... 164 4.10.1 Features .................................................................................................................... 164 4.10.2 Functional Description ............................................................................................... 164 4.10.3 TWD Registers .......................................................................................................... 166 TWD Register Map ............................................................................................ 166 Timer and WATCHDOG Configuration Register (TWCFG) ............................... 166 Timer and WATCHDOG Clock Pre-Scaler Register (TWCP) ............................ 167 TWD Timer 0 Register (TWDT0) ....................................................................... 167 TWDT0 Control and Status Register (T0CSR) .................................................. 168 WATCHDOG Count Register (WDCNT) ............................................................ 168 WATCHDOG Service Data Match Register (WDSDM) ..................................... 168 4.10.4 Usage Hints ............................................................................................................... 169 4.11 ANALOG TO DIGITAL CONVERTER (ADC) .......................................................................... 170 4.11.1 Features .................................................................................................................... 170 4.11.2 Functional Description ............................................................................................... 170 4.11.3 Voltage Measurement ............................................................................................... 173 4.11.4 Temperature Measurement ....................................................................................... 173 4.11.5 ADC Operation .......................................................................................................... 174 Reset ................................................................................................................. 174 ADC Clock ......................................................................................................... 174 |
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Similar Description - PC87591E |
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