Renesas 32185 - Manual (Page 56)

32185/32186/32192/32195/32196 Group
Starter Kit User’s Manual M3A-2154G52B
REJ10B0223-0150/Rev.1.50 Mar 2008 Page 48 of 80
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.