CHAPTER 14 INTERRUPT FUNCTIONS
14.3 Registers Controlling Interrupt Function
The following five types of registers are used to control the interrupt functions.
• Interrupt request flag registers 0, 1 (IF0 and IF1)
• Interrupt mask flag registers 0, 1 (MK0 and MK1)
• External interrupt mode registers 0, 1 (INTM0 and INTM1)
• Program status word (PSW)
• Key return mode register 00 (KRM00)
Table 14-2 gives a listing of interrupt request flag and interrupt mask flag names corresponding to interrupt
requests.
Table 14-2. Flags Corresponding to Interrupt Request Signal Name
Interrupt Request Signal Name Interrupt Request Flag Interrupt Mask Flag
INTWDT
INTP0
WDTIF
PIF0
WDTMK
PMK0
INTP1
PIF1
PMK1
INTP2
PIF2
PMK2
INTP3
PIF3
PMK3
INTSR20/INTCSI20
INTST20
INTWTI
SRIF20
STIF20
WTIIF
TMIF90
TMIF50
TMIF60
ADIF0
WTIF
SRMK20
STMK20
WTIMK
TMMK90
TMMK50
TMMK60
ADMK0
WTMK
INTTM90
INTTM50
INTTM60
INTAD0
INTWT
INTKR00
KRIF00
KRMK00
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User’s Manual U15075EJ1V0UM00
NEC [ NEC ]
