SAF-C505C-2RM View Datasheet(PDF) - Infineon Technologies
Part Name
Description
Manufacturer
SAF-C505C-2RM Datasheet PDF : 88 Pages
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C505 / C505C
C505A / C505CA
Interrupt System
The C505 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). One
interrupt can be generated by the CAN controller (C505C and C505CA only) or by a software setting
and in this case the interrupt vector is the same. 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. The wake-up from power-down
mode interrupt has a special functionality which allows to exit from the software power-down mode
by a short low pulse at either pin P3.2/INT0 or the pin P4.1/RXDC.
Figure 21 to 23 give a general overview of the interrupt sources and illustrate the request and the
control flags which are described in the next sections. Table 9 lists all interrupt sources with their
request flags and interrupt vector addresses.
Table 9
Interrupt Source and Vectors
Interrupt Source
Interrupt Vector Address
External Interrupt 0
0003H
Timer 0 Overflow
000BH
External Interrupt 1
0013H
Timer 1 Overflow
001BH
Serial Channel
0023H
Timer 2 Overflow / Ext. Reload
002BH
A/D Converter
0043H
CAN Controller / Software Interrupt 004BH
External interrupt 3
0053H
External Interrupt 4
005BH
External Interrupt 5
0063H
External interrupt 6
006BH
Wake-up from power-down mode 007BH
Interrupt Request Flags
IE0
TF0
IE1
TF1
RI / TI
TF2 / EXF2
IADC
– / SWI
IEX3
IEX4
IEX5
IEX6
–
Data Sheet
42
08.00
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