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UPD784021 Datasheet(PDF) 44 Page - NEC

Part # UPD784021
Description  16/8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  90 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD784021 Datasheet(HTML) 44 Page - NEC

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mPD784020, 784021
Table 9-2 Interrupt Sources
Remark ASI: Asynchronous serial interface
CSI: Synchronous serial interface
H
Type
Default
Source
Internal/
Macro
priority
Name
Trigger
external
service
Software
–
BRK instruction
Instruction execution
–
–
Operand error
When the MOV STBC,#byte or MOV WDM,#byte instruction is
executed, exclusive OR of the byte operand and byte does not
produce FFH.
Nonmaskable
–
NMI
Detection of edge input on the pin
External
–
WDT
Watchdog timer overflow
Internal
Maskable
0 (highest)
INTP0
Detection of edge input on the pin (TM1/TM1W capture trigger)
External
Enabled
1
INTP1
Detection of edge input on the pin (TM2/TM2W capture trigger)
2
INTP2
Detection of edge input on the pin (TM2/TM2W event counter input)
3
INTP3
Detection of edge input on the pin (TM0 capture trigger)
4
INTC00
TM0-CR00 match signal issued
Internal
Enabled
5
INTC01
TM0-CR01 match signal issued
6
INTC10
TM1-CR10 match signal issued (in 8-bit operation mode)
TM1W-CR10W match signal issued (in 16-bit operation mode)
7
INTC11
TM1-CR11 match signal issued (in 8-bit operation mode)
TM1W-CR11W match signal issued (in 16-bit operation mode)
8
INTC20
TM2-CR20 match signal issued (in 8-bit operation mode)
TM2W-CR20W match signal issued (in 16-bit operation mode)
9
INTC21
TM2-CR21 match signal issued (in 8-bit operation mode)
TM2W-CR21W match signal issued (in 16-bit operation mode)
10
INTC30
TM3-CR30 match signal issued (in 8-bit operation mode)
TM3W-CR30W match signal issued (in 16-bit operation mode)
11
INTP4
Detection of edge input on the pin
External
Enabled
12
INTP5
Detection of edge input on the pin
13
INTAD
A/D converter processing completed (ADCR transfer)
Internal
Enabled
14
INTSER
ASI0 reception error
–
15
INTSR
ASI0 reception completed or CSI1 transfer completed
Enabled
INTCSI1
16
INTST
ASI0 transmission completed
17
INTCSI
CSI0 transfer completed
18
INTSER2
ASI2 reception error
–
19
INTSR2
ASI2 reception completed or CSI2 transfer completed
Enabled
INTCSI2
20 (lowest)
INTST2
ASI2 transmission completed



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