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參數(shù)資料
| 型號(hào)： | UPD78218A |
| 廠商： | NEC Corp. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| 中文描述： | 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存 |
| 文件頁(yè)數(shù)： | 28/66頁(yè) |
| 文件大?。?/td> | 510K |
| 代理商： | UPD78218A |
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28
μ
PD78217A, 78218A
4.1.1
Interrupt Sources
There are 19 types of interrupt sources and a BRK instruction execution, as shown in Table 4-2.
The priority of the interrupt servicing can be set to 2 levels (high and low priority levels). Therefore, the levels
of nest control when the interrupt is in progress and when interrupt requests occur simultaneously (see
Fig. 4-1,
Fig. 4-2
) can be separated. Nesting will always take place in the macro service (It won't be put on hold).
The default priority is the priority level (fixed) to service the interrupt requests which occur at the same level
simultaneously (see
Fig. 4-2
).
Table 4-2 Interrupt Sources
Trigger
Type
Default
Priority
Source
0 (highest)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 (lowest)
Name
Instruction execution
Pin input edge detection
Pin input edge detection (TM1 capture trigger)
Pin input edge detection (TM2 capture trigger)
Pin input edge detection (TM2 event counter input)
Pin input edge detection (TM0 capture trigger)
TM0 to CR00 match signal generation
TM0 to CR01 match signal generation
TM1 to CR10 match signal generation
TM1 to CR11 match signal generation
TM2 to CR21 match signal generation
Pin input edge detection
TM3 to CR30 match signal generation
Pin input edge detection
A/D converter conversion termination (transfer to ADCR)
TM2 to CR20 match signal generation
ASI receive error generation
ASI receive termination
ASI transmit termination
CSI transfer termination
BRK
NMI
INTP0
INTP1
INTP2
INTP3
INTC00
INTC01
INTC10
INTC11
INTC21
INTP4
INTC30
INTP5
INTAD
INTC20
INTSER
INTSR
INTST
INTCSI
Software
External
Internal
External
Non-
maskable
Maskable
External
Internal
Internal
–––––
–––
–––
TM0
TM1 to TM3 :
ASI
CSI
:
16-bit timer
8-bit timer
Asynchronous serial interface
Clock synchronous serial interface
:
:
Macro
Service
Internal/
External
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