
D E M O 9 S 0 8 S H 3 2 / S G 3 2
U S E R G U I D E
J U L Y
9 ,
2 0 0 7
LIN_EN
The LIN_EN option header can be used to disable the LIN PHY under MCU control. The LIN
PHY is enabled by default if this header is removed.
Figure 6: VX_EN Option Header
ON
OFF
1
2
Enabled
Disabled
VX_EN
COM_SEL
The COM_SEL option header connects the MCU SCI port to either the SCI PHY or the LIN
PHY.
Table 5: COM_SEL Option
COM
LIN
2
1
COM
5
6
4
3
3
4
6
5
LIN
1
2
Select LIN communications
Select COM communications
USER I/O
User I/O includes 1 potentiometers, 1 Light Sensor, 2 push button switches, and 2 green LEDs
for user I/O. The User option header block enables or disables each User I/O function
individually.
13