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COP8TAC5HLQ8 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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COP8TAC5HLQ8 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 54 page Table of Contents 1.0 General Description ..................................................................................................................................... 1 2.0 Features ....................................................................................................................................................... 1 3.0 Block Diagram .............................................................................................................................................. 2 4.0 Ordering Information .................................................................................................................................... 2 5.0 Connection Diagrams ................................................................................................................................... 5 6.0 Architectural Overview ................................................................................................................................. 7 6.1 EMI REDUCTION ...................................................................................................................................... 7 6.2 ARCHITECTURE ..................................................................................................................................... 7 6.3 INSTRUCTION SET ................................................................................................................................. 7 6.3.1 Key Instruction Set Features ............................................................................................................... 7 6.3.2 Single Byte/Single Cycle Code Execution ......................................................................................... 7 6.3.3 Many Single-Byte, Multi-Function Instructions .................................................................................... 7 6.3.4 Bit-Level Control .................................................................................................................................. 7 6.3.5 Register Set ......................................................................................................................................... 7 6.4 PACKAGING/PIN EFFICIENCY ................................................................................................................ 7 7.0 Absolute Maximum Ratings ......................................................................................................................... 8 8.0 Electrical Characteristics .............................................................................................................................. 8 9.0 Pin Descriptions ......................................................................................................................................... 11 10.0 Functional Description .............................................................................................................................. 13 10.1 CPU REGISTERS ................................................................................................................................. 13 10.2 PROGRAM MEMORY ........................................................................................................................... 14 10.3 DATA MEMORY .................................................................................................................................... 14 10.4 OPTION REGISTER ............................................................................................................................. 14 10.5 RESET ................................................................................................................................................... 15 10.5.1 External Reset ................................................................................................................................. 15 10.5.2 On-Chip Power-On Reset ................................................................................................................ 15 10.6 OSCILLATOR CIRCUITS ...................................................................................................................... 16 10.6.1 Crystal Oscillator .............................................................................................................................. 16 10.6.2 R/C Oscillator ................................................................................................................................... 16 10.6.3 External Oscillator ............................................................................................................................ 17 10.6.4 Clock Prescaler ................................................................................................................................ 17 10.7 CONTROL REGISTERS ....................................................................................................................... 18 10.7.1 CNTRL Register (Address X'00EE) ................................................................................................. 18 10.7.2 PSW Register (Address X'00EF) ..................................................................................................... 18 10.7.3 ICNTRL Register (Address X'00E8) ................................................................................................ 18 10.7.4 ITMR Register (Address X'00CF) .................................................................................................... 18 11.0 Timers ....................................................................................................................................................... 18 11.1 TIMER T0 (IDLE TIMER) ....................................................................................................................... 18 11.1.1 ITMR Register .................................................................................................................................. 19 11.2 TIMER T1 .............................................................................................................................................. 19 11.3 MODE 1. PROCESSOR INDEPENDENT PWM MODE ....................................................................... 19 11.4 MODE 2. EXTERNAL EVENT COUNTER MODE ................................................................................ 19 11.5 MODE 3. INPUT CAPTURE MODE ......................................................................................................21 11.6 TIMER CONTROL FLAGS .................................................................................................................... 22 12.0 Power Save Modes .................................................................................................................................. 22 12.1 HALT MODE .......................................................................................................................................... 22 12.2 IDLE MODE ........................................................................................................................................... 23 12.3 MULTI-INPUT WAKE-UP ...................................................................................................................... 24 13.0 Interrupts .................................................................................................................................................. 25 13.1 INTRODUCTION ................................................................................................................................... 25 13.2 MASKABLE INTERRUPTS ................................................................................................................... 26 13.3 VIS INSTRUCTION ............................................................................................................................... 27 13.3.1 VIS Execution .................................................................................................................................. 28 13.4 NON-MASKABLE INTERRUPT ............................................................................................................ 29 13.4.1 Pending Flag .................................................................................................................................... 29 13.4.2 Software Trap .................................................................................................................................. 29 13.4.2.1 Programming Example: External Interrupt ................................................................................. 30 13.5 PORT C AND PORT L INTERRUPTS .................................................................................................. 31 13.6 INTERRUPT SUMMARY ....................................................................................................................... 31 14.0 WATCHDOG/Clock Monitor ..................................................................................................................... 31 14.1 CLOCK MONITOR ................................................................................................................................ 32 14.2 WATCHDOG/CLOCK MONITOR OPERATION .................................................................................... 32 www.national.com 3 |
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