Renesas 32185 User Manual

Page of 89
32185/32186/32192/32195/32196 Group 
Starter Kit User’s Manual M3A-2154G52B 
REJ10B0223-0140/Rev.1.40 
Jan. 2007 
Page 48 of 79 
 
2.8  Analog Port Input Control Circuit   
The analog port input control circuit is used to control the status of the M32R/ECU analog ports 
AD0IN0 and AD0IN1 by using VR controls VOL0 and VOL1. 
 
 
U1
M32R/ECU
VCCE
AD0IN0
J12 2    1
J13
VCCE
VOL0
VOL1
AD0IN1
AD0IN0
AD0IN1
CON1
FX1-144-1.27DS
2    1
* CONx : Connector
* Jx : Jumper
* Ux : IC
* VOLx : VR control
 
 
Figure 2.9    Analog Port Input Control Circuit 
 
Table 2.12    Analog Port Input Control (Jumper) 
Name Condition 
Description 
Shorted 
between 1–2 
Default 
Uses VR control (VOL0) 
J12 
Open 
between 1–2 
 
Does not use VR control (VOL0) 
Shorted 
between 1–2 
Default 
Uses VR control (VOL1) 
J13 
Open 
between 1–2 
 
Does not use VR control (VOL1) 
Note: The J12 and J13 jumpers are shorted by pattern wiring on the reverse side of printed circuit board. 
Case of setting the condition except for default, setting the jumper is required after cutting the pattern 
for default condition by referring to the chapter 3.8 Setting jumper by cutting pattern