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19.3 Interrupt Function Control Registers
The following six types of registers are used to control the interrupt functions.
• Interrupt request flag register (IF0L, IF0H, IF1L)
• Interrupt mask flag register (MK0L, MK0H, MK1L)
• Priority specify flag register (PR0L, PR0H, PR1L)
• External interrupt rising edge enable register (EGP)
• External interrupt falling edge enable register (EGN)
• Prescaler mode register (PRM0)
• Program status word (PSW)
Table 19-2 gives a list of interrupt request flags, interrupt mask flags, and priority specify flags corresponding to
interrupt request sources.
Table 19-2. Flags Corresponding to Interrupt Request Sources
Interrupt Source
INTWDT
INTAD
INTOVF
INTTM00
INTTM01
INTTM02
INTP0
INTP1
INTP2
INTCSI3
INTSER
INTSR
INTST
INTTM1
INTTM2
INTTM3
INTCSI2
INTWTI
INTWT
Remark The WDTIF, WDTMK, and WDTPR flags are interrupt control flags when the watchdog timer is used
as an interval timer.
CHAPTER 19 INTERRUPT FUNCTIONS
Interrupt Request Flag
Register
WDTIF
IF0L
ADIF
OVFIF
TMIF00
TMIF01
TMIF02
PIF0
PIF1
PIF2
IF0H
CSIIF3
SERIF
SRIF
STIF
TMIF1
TMIF2
TMIF3
CSIIF2
IF1L
WTIIF
WTIF
Preliminary User's Manual U14581EJ3V0UM00
Interrupt Mask Flag
Register
WDTMK
MK0L
ADMK
OVFMK
TMMK00
TMMK01
TMMK02
PMK0
PMK1
PMK2
MK0H
CSIMK3
SERMK
SRMK
STMK
TMMK1
TMMK2
TMMK3
CSIMK2
MK1L
WTIMK
WTMK
Priority Specify Flag
Register
WDTPR
PR0L
ADPR
OVFPR
TMPR00
TMPR01
TMPR02
PPR0
PPR1
PPR2
PR0H
CSIPR3
SERPR
SRPR
STPR
TMPR1
TMPR2
TMPR3
CSIPR2
PR1L
WTIPR
WTPR
245
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