UPD789304 Datasheet, PDF (27/64 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD789304, 789306, 789314, 789316
6. INTERRUPT FUNCTIONS
A total of 15 interrupt sources divided into the following two types are provided.
• Non-maskable: 1
• Maskable:
14
Table 6-1. Interrupt Source List
Interrupt Type
Non-
maskable
Maskable
Priority^{Note 1}
–
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Interrupt Source
Name
Trigger
INTWDT
Watchdog timer overflow (with
watchdog timer mode 1 selected)
INTWDT
Watchdog timer overflow (with interval
timer mode selected)
INTP0
Pin input edge detection
INTP1
INTP2
INTP3
INTSR20 End of serial interface 20 UART
reception
INTCSI20 End of serial interface 20 3-wire SIO
transfer reception
INTCSI10 End of serial interface 10 3-wire SIO
transfer reception
INTST20 End of serial interface 20 UART
transmission
INTWTI Watch timer interval timer interrupt
INTTM20 Generation of match signal of 16-bit
timer 20
INTTM30 Generation of match signal of 8-bit
timer 30
INTTM40 Generation of match signal of 8-bit
timer/event counter 40
INTWT Watch timer interrupt
INTKR00 Key return signal detection
Internal/
External
Internal
External
Internal
External
Vector Table
Address
Basic
Configuration
Type^{Note 2}
0004H
(A)
(B)
0006H
(C)
0008H
000AH
000CH
000EH
(B)
0010H
0012H
0014H
0016H
0018H
001AH
001EH
0020H
(C)
Notes 1.
2.
Default priority is the priority order when several maskable interrupt requests are generated at the
same time. 0 is the highest order and 13 is the lowest order.
Basic configuration types (A) to (C) correspond to (A) to (C) in Figure 6-1.
Remark Two watchdog timer interrupt sources (INTWDT): a non-maskable interrupt and a maskable interrupt
(internal), are available, either of which can be selected.
Data Sheet U14384EJ1V0DS
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