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APPLICATION EXAMPLES
OPEN
COLLECTOR
INVERTERS
OEVICE
-".
+5V
1
10K
6
iNT
8049
8048
DEVICE
.....
8748
2
8035
8039
Z1
P10
26
ANY
Pll
UNDEDICATED
29
PORT
LINES
DEVICE
P12
CAN
BE
USED
30
3
P13
DEVICE
.....
4
• All devices equal priority
• Processor polls Port 1 to determine interrupting device
MULTIPLE INTERRUPT SOURCES
5-5