參數資料
型號: SAF-C505
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件頁數: 45/85頁
文件大小: 487K
代理商: SAF-C505
C505L
Data Sheet
43
06.99
Interrupt System
The C505L provides 12 interrupt vectors with four priority levels. Five interrupt requests can be
generated by the on-chip peripherals (timer 0, timer 1, timer 2, serial interface, A/D converter) and
six interrupts may be triggered externally (P3.2/INT0, P3.3/INT1, P1.0/AN0/INT3/CC0, P1.1/AN1/
INT4/CC1, P1.2/AN2/INT5/CC2, P1.3/AN3/INT6/CC3). Additionally, the P1.5/AN5/T2EX can
trigger an interrupt. There is one software-generated interrupt (bit SWI in SFR IEN1) in addition to
the above interrupts. The wake-up from power-down mode interrupt has a special functionality
which allows an exit from the software power-down mode by a short low pulse at either pin P3.2/
INT0 or by the real-time clock interrupt.
Figure 21
to
Figure 23
give a general overview of the interrupt sources and illustrate the
corresponding request and the control flags.
Table 9
lists all interrupt sources with the
corresponding request flags and interrupt vector addresses.
Table 9
Interrupt Source and Vectors
Interrupt Source
Interrupt Vector Address
Interrupt Request Flags
External Interrupt 0
0003
H
000B
H
0013
H
001B
H
0023
H
002B
H
0043
H
004B
H
0053
H
005B
H
0063
H
006B
H
007B
H
IE0
Timer 0 Overflow
TF0
External Interrupt 1
IE1
Timer 1 Overflow
TF1
Serial Channel
RI / TI
Timer 2 Overflow / Ext. Reload
TF2 / EXF2
A/D Converter
IADC
Software Interrupt
SWI
External interrupt 3
IEX3
External Interrupt 4
IEX4
External Interrupt 5
IEX5
External interrupt 6
IEX6
Wake-up from power-down mode
IRTC
(real-time clock wake-up only)
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