IBM nec pd78p081(a2) User Manual

The following five 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 mode register (INTM0, INTM1)

• Program status word (PSW)

Table 12-2 gives a listing of interrupt request flags, interrupt mask flags, and priority specify flags corresponding

to interrupt request sources.

Interrupt Source

Interrupt Request Flag

Interrupt Mask Flag

Priority Specify Flag

Register

Register

Register

INTWDT

TMIF4

IF0L

TMMK4

MK0L

TMPR4

PR0L

INTP1

PIF1

PMK1

PPR1

INTP2

PIF2

PMK2

PPR2

INTP3

PIF3

PMK3

PPR3

INTSER

SERIF

IF0H

SERMK

MK0H

SERPR

PR0H

INTSR/INTCSI2

SRIF

SRMK

SRPR

INTST

STIF

STMK

STPR

INTAD

ADIF

IF1L

ADMK

MK1L

ADPR

PR1L

INTTM5

TMIF5

TMMK5

TMPR5

INTTM6

TMIF6

TMMK6

TMPR6