M16C80 Datasheet, PDF (6/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

9.6 Interrupt control registers .......................................................................................... 62
9.7 Interrupt Enable Flag (I Flag) ..................................................................................... 64
9.8 Interrupt Request Bit .................................................................................................. 64
9.9 Interrupt Priority Level Select Bit and Processor Interrupt Priority Level (IPL) ... 64
9.10 Rewrite the interrupt control register ..................................................................... 65
9.11 Interrupt Sequence ................................................................................................... 66
9.12 Interrupt Response Time .......................................................................................... 66
9.13 Changes of IPL When Interrupt Request Acknowledged ...................................... 68
9.14 Saving Registers ....................................................................................................... 68
9.15 Return from Interrupt Routine ................................................................................. 69
9.16 Interrupt Priority........................................................................................................ 69
9.17 Interrupt Resolution Circuit ..................................................................................... 69
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9.18 INT Interrupts ............................................................................................................ 71
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9.19 NMI Interrupt.............................................................................................................. 72
9.20 Key Input Interrupt .................................................................................................... 72
9.21 Address Match Interrupt .......................................................................................... 73
9.22 Precautions for Interrupts ........................................................................................ 74
10. Watchdog Timer ___________________________________________ 78
11. DMAC ____________________________________________________ 80
12. Timer_____________________________________________________ 92
13. Timer A ___________________________________________________ 94
14. Timer B __________________________________________________ 106
15. Three-phase motor control timers’ functions ____________________112
16. Serial I/O _________________________________________________ 124
17. Clock synchronous serial I/O mode __________________________ 136
18. Clock asynchronous serial I/O (UART) mode __________________ 144
19. Clock-asynchronous serial I/O mode (compliant with the SIM interface) ___ 151
20. UARTi Special Mode Register (i = 2 to 4) ______________________ 155
21. A/D Converter ____________________________________________ 166
22. D/A Converter ____________________________________________ 176
23. CRC Calculation Circuit ____________________________________ 178
24. XY Converter _____________________________________________ 180
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