Table 51. master’s ir3 connections, Table 52. master’s ir4 connections, 1 and 5-2 – Intel 386 User Manual
Page 81
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)
0
X
0
IR3 connected to SIOINT1
OUT1 connected to pin (TMROUT1)
0
X
1
IR3 internally driven low
P3.1 selected at pin (P3.1)
1
0
0
IR3 connected to pin (INT8)
1
0
1
IR3 connected to SIOINT1
P3.1 selected at pin (P3.1)
1
1
0
IR3 connected to SIOINT1
pin (INT8) must not be left floating
1
1
1
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)
0
X
0
IR4 connected to SIOINT0
OUT0 connected to pin (TMROUT0)
0
X
1
IR4 internally driven low
P3.0 selected at pin (P3.0)
1
0
0
IR4 connected to pin (INT9)
1
0
1
IR4 connected to SIOINT0
P3.0 selected at pin (P3.0)
1
1
0
IR4 connected to SIOINT0
pin (INT9) must not be left floating
1
1
1
NOTE:
X is a don’t care