10.3
10.3.1
System Clock......................................................................................62
10.3.2
CPU Clock ..........................................................................................62
10.3.3
10.3.4
fRING and fRING128..........................................................................62
10.3.5
fRING-fast...........................................................................................62
10.3.6
fRING-S ..............................................................................................62
10.4
Power Control............................................................................................63
10.4.1
10.4.2
Wait Mode ..........................................................................................64
10.4.3
Stop Mode ..........................................................................................66
10.5
10.5.1
10.6
10.6.1
10.6.2
10.6.3
10.6.4
12.1
Interrupt Overview .....................................................................................72
12.1.1
Types of Interrupts..............................................................................72
12.1.2
Software Interrupts .............................................................................73
12.1.3
Special Interrupts................................................................................74
12.1.4
12.1.5
12.1.6
Interrupt Control..................................................................................77
12.2
INT Interrupt ..............................................................................................85
12.2.1
INT0 Interrupt .....................................................................................85
12.2.2
INT0 Input Filter..................................................................................86
12.2.3
INT1 Interrupt .....................................................................................87
12.2.4
INT3 Interrupt .....................................................................................88
12.3
Key Input Interrupt.....................................................................................90
12.4
A - 3
71
72