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CHAPTER 18
INTERRUPT FUNCTIONS
User’s Manual U12790EJ2V0UD
18.3 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 specification flag register (PR0L, PR0H, PR1L)
 External interrupt rising edge enable register (EGP)
 External interrupt falling edge enable register (EGN)
 Program status word (PSW)
Table 18-2 lists the interrupt request flags, interrupt mask flags, and priority specification flags corresponding to
interrupt request sources.
Table 18-2. Flags Corresponding to Interrupt Request Sources
Interrupt Source
Interrupt Request Flag
Interrupt Mask Flag
Priority Specification Flag
Register
INTWDT
WDTIF
IF0L
WDTMK
MK0L
WDTPR
PR0L
INTP0
PIF0
PMK0
PPR0
INTP1
PIF1
PMK1
PPR1
INTP2
PIF2
PMK2
PPR2
INTP3
PIF3
PMK3
PPR3
INTP4
PIF4
PMK4
PPR4
INTP5
PIF5
PMK5
PPR5
INTP6
PIF6
PMK6
PPR6
INTP7
PIF7
IF0H
PMK7
MK0H
PPR7
PR0H
INTCSI0
CSIIF0
CSIMK0
CSIPR0
INTCSI1
CSIIF1
CSIMK1
CSIPR1
INTCSI3
CSIIF3
CSIMK3
CSIPR3
INTTM50
TMIF50
TMMK50
TMPR50
INTTM51
TMIF51
TMMK51
TMPR51
INTSER0Note 1
SERIF0Note 1
SERMK0Note 1
SERPR0Note 1
INTSR0Note 1
SRIF0Note 1
SRMK0Note 1
SRPR0Note 1
INTST0Note 1
STIF0Note 1
IF1L
STMK0Note 1
MK1L
STPR0Note 1
PR1L
INTBTM0
BTMIF0
BTMMK0
BTMPR0
INTTM00
TMIF00
TMMK00
TMPR00
INTTM01
TMIF01
TMMK01
TMPR01
INTIE1Note 2
IEIF1Note 2
IEMK1Note 2
IEPR1Note 2
INTIE2Note 2
IEIF2Note 2
IEMK2Note 2
IEPR2Note 2
INTAD
ADIF
ADMK
ADPR
Notes 1.
PD178076, 178078, 178F098 only
2.
PD178096A, 178098A, 178F098 only