參數(shù)資料
型號(hào)： GMS90L320
英文描述： 8-Bit Single-Chip Microcontrollers(低電壓,8位單片微控制器)
中文描述： 8位單芯片微控制器（低電壓，8位單片微控制器）
文件頁(yè)數(shù)： 23/46頁(yè)
文件大小： 683K
代理商： GMS90L320
GMS90C320
OCT. 2000 Ver 1.2
19
Alow-priority interruptcan itselfbeinterrupted by a high-priority interrupt, butnotby anotherlow priority interrupt. A high-
priority interrupt cannot be interrupted by any other interrupt source.
If two requests of different priority level are received simultaneously, the request of higher priority is serviced. If requests of
the samepriorityarereceived simultaneously, an internalpollingsequence determineswhich requestisserviced. Thuswithin
each priority level there is a second priority structure determined by the polling sequence as shown in
Table 9
.
Table 8
Interrupt Sources and their Corresponding Interrupt Vectors
Source (Request Flags)
Vector
Vector Address
IE0
TF0
IE1
TF1
RI+TI
TF2+EXF2
External interrupt 0
Timer 0 interrupt
External interrupt 1
Timer 1 interrupt
Serial port interrupt
Timer 2 interrupt
0003
H
000B
H
0013
H
001B
H
0023
H
002B
H
Table 9
Interrupt Priority-Within-Level
Interrupt Source
Priority
IE0
TF0
IE1
TF1
RI+TI
TF2+EXF2
External interrupt 0
Timer 0 interrupt
External interrupt 1
Timer 1 interrupt
Serial port interrupt
Timer 2 interrupt
High
↓
Low
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