System Overview
2.3.4
MC9S08LG32 UART
The MC9S08LG32 MCU can communicate through the SCI protocol with the MC9S08JM60 Comm
MCU or the OSBDM MCU. You can select the communication device placing a jumper on J1 for the
MC9S08LG32 transmitter pin and J2 for the MC9S08LG32 receiver pin.
1. To select the MC9S08JM60 Comm MCU as communication device for the Tx SCI signal of the
MC9S08LG32 MCU, place the jumper on position 1–2 on J1.
J1
Tx
2. To select the OSBDM MCU as a communication device for the Tx SCI signal of the MC9S08LG32
MCU, place the jumper on position on 2-3 on J1.
J1
Tx
3. To select the MC9S08JM60 Comm MCU as a communication device for the Rx SCI signal of the
MC9S08LG32 MCU, place the jumper on position 1-2 on J2.
J2
Rx
4. To select the MC9S08JM60 Comm MCU as a communication device for the Rx SCI signal of the
MC9S08LG32 MCU, place the jumper on position 2-3 on J2.
J2
Rx
2.3.5
Test Points
TSSEVB includes several test points for electrical test. Table 2-3 lists all the test points.
Table 2-3. Test Points on the TSSEVB
Test Point
TP1
TP2
TP3
TP4
GND test point
GND test point
V in test point
V_Main test point
Signal
Touch Sensing Software Evaluation Board Users Guide, Rev. 6
Freescale Semiconductor
2-19
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