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Intel386™ EX EMBEDDED MICROPROCESSOR USER’S MANUAL
5-8
Table 5-1. Master’s IR3 Connections
Function INTCFG.6 MCR1.3 P3CFG.1
IR3 connected to SIOINT1
P3.1 selected at pin (P3.1)
0X0
IR3 connected to SIOINT1
OUT1 connected to pin (TMROUT1)
0X1
IR3 internally driven low
P3.1 selected at pin (P3.1)
100
IR3 connected to pin (INT8) 1 0 1
IR3 connected to SIOINT1
P3.1 selected at pin (P3.1)
110
IR3 connected to SIOINT1
pin (INT8) must not be left floating
111
NOTE: X is a don’t care
Table 5-2. Master’s IR4 Connections
Function INTCFG.5 MCR0.3 P3CFG.0
IR4 connected to SIOINT0
P3.0 selected at pin (P3.0)
0X0
IR4 connected to SIOINT0
OUT0 connected to pin (TMROUT0)
0X1
IR4 internally driven low
P3.0 selected at pin (P3.0)
100
IR4 connected to pin (INT9) 1 0 1
IR4 connected to SIOINT0
P3.0 selected at pin (P3.0)
110
IR4 connected to SIOINT0
pin (INT9) must not be left floating
111
NOTE: X is a don’t care