NEC mPD780852 Series, Preliminary User'S Manual

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CHAPTER 19 INTERRUPT FUNCTIONS
Preliminary User’s Manual U14581EJ3V0UM00
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
Interrupt Request Flag Interrupt Mask Flag Priority Specify Flag
Register Register Register
INTWDT WDTIF IF0L WDTMK MK0L WDTPR PR0L
INTAD ADIF ADMK ADPR
INTOVF OVFIF OVFMK OVFPR
INTTM00 TMIF00 TMMK00 TMPR00
INTTM01 TMIF01 TMMK01 TMPR01
INTTM02 TMIF02 TMMK02 TMPR02
INTP0 PIF0 PMK0 PPR0
INTP1 PIF1 PMK1 PPR1
INTP2 PIF2 IF0H PMK2 MK0H PPR2 PR0H
INTCSI3 CSIIF3 CSIMK3 CSIPR3
INTSER SERIF SERMK SERPR
INTSR SRIF SRMK SRPR
INTST STIF STMK STPR
INTTM1 TMIF1 TMMK1 TMPR1
INTTM2 TMIF2 TMMK2 TMPR2
INTTM3 TMIF3 TMMK3 TMPR3
INTCSI2 CSIIF2 IF1L CSIMK2 MK1L CSIPR2 PR1L
INTWTI WTIIF WTIMK WTIPR
INTWT WTIF WTMK WTPR
Remark The WDTIF, WDTMK, and WDTPR flags are interrupt control flags when the watchdog timer is used
as an interval timer.