32176 Group
Starter Kit User’s Manual M3A-2152
REJ10B0224-0300/Rev.3.00 Jan. 2007 Page 54 of 82
The analog port input control circuit is used to control the status of the M32R/ECU ports AD0IN0
and AD0IN1 by using VR controls VOL0 and VOL1.
U1
M32R/ECU AVCC
AD0IN0 H3 1 2
H4 1 2
AVCC
VOL0
VOL1
AD0IN1
Figure 2.9 Analog Port Input Control Circuit
Table 2.12 Analog Port Input Control (Jumper)
Name Default Condition Description
{ Shorted
between 1–2 Uses VR control (VOL0)
H3 Open
between 1–2 Does not use VR control (VOL0)
{ Shorted
between 1–2 Uses VR control (VOL1)
H4 Open
between 1–2 Does not use VR control (VOL1)
Note: The H3 and H4 jumpers are shorted by soldering.