UPD178016 datasheet(23/56 Pages) NEC

23 / 56 page

µPD178004, 178006, 178016, 178018

6. INTERRUPT FUNCTIONS AND TEST FUNCTIONS

6.1 INTERRUPT FUNCTIONS

There are 17 interrupt functions of three different kinds, as shown below.

• Non-maskable interrupt :

• Maskable interrupt

: 15

• Software interrupt

Table 6-1. Interrupt Source List

Non-

maskable

0006H

0008H

000AH

000CH

000EH

0010H

0012H

Trigger

Internal/

External

Internal

0004H

0014H

Internal

Vector Table

Address

Interrupt Source

(B)

Basic

Configuration

TypeNote 2

(B)

(A)

(C)

(D)

Maskable

INTP0

INTP1

INTP2

INTP3

INTP4

INTP5

INTP6

Note 1

Default

Priority

Name

INTCSI0

INTWDT

Interrupt

Type

—

End of serial interface channel 0 transfer

Pin input edge detection

Watchdog timer overflow

(interval timer mode selected)

Watchdog timer overflow

(watchdog timer mode 1 selected)

0016H

INTCSI1

End of serial interface channel 1 transfer

0018H

INTTMC

Generation of match signal of basic timer

001AH

INTPWM

Generation of match signal of 8-bit timer

INTTM1

Generation of match signal of 8-bit timer/

event counter 1

001CH

INTTM2

Generation of match signal of 8-bit timer/

event counter 2

001EH

INTAD

End of conversion by A/D converter

0020H

—

BRK

BRK instruction execution

003EH

Software

(E)

Internal

Notes 1. The default priority is a priority order when two or more maskable interrupts are generated

simultaneously. 0 is the highest order and 14, the lowest.

2. Basic configuration types (A) to (E) correspond to (A) to (E) in Figure 6-1, respectively.

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