9.3 Interrupt Control .......................................................................................................... 66
9.3.1 I Flag .................................................................................................................... 69
9.3.2 IR Bit .................................................................................................................... 69
9.4 Interrupt Sequence ...................................................................................................... 70
9.4.3 Saving Registers .................................................................................................. 72
9.5 Interrupt Priority ........................................................................................................... 74
______
9.6 INT Interrupt ................................................................................................................ 76
______
9.7 NMI Interrupt ............................................................................................................... 77
9.8 Key Input Interrupt ....................................................................................................... 77
11. DMAC ______________________________________ 82
11.1 Transfer Cycles......................................................................................................... 87
11.2. DMA Transfer Cycles ................................................................................................ 89
11.3 DMA Enable............................................................................................................... 90
11.4 DMA Request ............................................................................................................ 90
12. Timer _______________________________________ 92
12.1 Timer A ..................................................................................................................... 94
12.1.1. Timer Mode ....................................................................................................... 97
12.2 Timer B ................................................................................................................... 108
12.2.1 Timer Mode ..................................................................................................... 111
12.2.4 A/D Trigger Mode ............................................................................................ 115
A-3