Renesas 32176 - Manual (Page 61)

32176 Group
Starter Kit User’s Manual M3A-2152
REJ10B0224-0310/Rev.3.10 Mar. 2008 Page 53 of 83
2.7 General-purpose Input Port Control Circuit
The general-purpose input port control circuit is used to control the status of the M32R/ECU ports
P130–P137 by using toggle switches (S0–S7).
U1
M32R/ECU
VCC
P130
P131
P132
P133
P134
P135
P136
P137
RA7
2 1
3
S0
2 1
3
S1
2 1
3
S2
2 1
3
S3
2 1
3
S4
2 1
3
S5
2 1
3
S6
2 1
3
S7
RA5
Figure 2.7 General-purpose Input Port Control Circuit
Table 2.10 Relationship Between
Toggle Switches and Ports Table 2.11 Toggle Switch Positions
Toggle Switch Name
Corresponding
M32R/ECU Port
Lever Direction Port Input Level
S0 P130 Up High
S1 P131 Middle Open
S2 P132 Down Low
S3 P133
S4 P134
S5 P135
S6 P136
S7 P137
Up M iddle
Down
Lever direction
Port input level H O pen L
Figure 2.8 Toggle Switch Positions