D780232 datasheet(21/52 Pages) NEC

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µPD780232

Data Sheet U13415EJ2V0DS

6. INTERRUPT FUNCTIONS

There are 3 types of interrupt functions.

• Non-maskable: 1

• Maskable:

• Software:

Table 6-1. Interrupt Source List

Interrupt

Default

Interrupt Source

Internal/

Vector

Basic

Table

Configuration

Type

PriorityNote 1

Name

Trigger

External

Address

TypeNote 2

Non-

—

INTWDT

Watchdog timer overflow (when watchdog timer

Internal

0004H

(A)

maskable

mode 1 is selected)

Maskable

INTWDT

Watchdog timer overflow (when interval timer

(B)

mode is selected)

INTP0

Pin input edge detection

External

0006H

(C)

INTP1

0008H

INTTM90

Remote control timer input rising edge detection

Internal

000AH

(B)

INTTM91

Remote control timer input falling edge detection

000CH

INTTM92

Remote control timer overflow

000EH

INTKS

Key scan timing from VFD controller/driver

0010H

INTCSI1

Serial interface SIO1 transfer end

0012H

INTCSI3

Serial interface SIO3 transfer end

0014H

INTTM80

TM80 and CR80 match

0016H

INTTM81

TM81 and CR81 match

0018H

INTAD

A/D conversion end

001AH

Software

—

BRK

BRK instruction execution

—

003EH

(D)

Notes 1. Default Priority is the priority order when more than one maskable interrupt request is generated

simultaneously. 0 is the highest priority and 11 is the lowest.

2. Basic configuration types (A) to (D) correspond to (A) to (D) in Figure 6-1.

Remark

Two watchdog timer interrupt sources (INTWDT) are available: a non-maskable interrupt and a

maskable interrupt (internal), either of which can be selected.

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