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3. Details of hardware
MB86R11
Evaluation Board
MB86R11EVB Hardware Manual
3.3.5.
LIN
The Option board has 1 channel (USART ch5) as the LIN interface. This interface is connected to 2pin
connector (CN28).
The interface of LIN Host and Function can be switched by setting CN27.
The power supply to the BAT power pin of the LIN transceiver can select either of the following 2 methods
by jumper pin (CN25):
Supply the power by the Option board.
Input the power from header pin (CN26).
The USART5_SCK signal is connected to sleep pin (Low active) of the device.
Table 3-48 LIN
No.
Item
Model number
Manufacturer
Quantity
Remarks
1 Transceiver
TJA1020T
NXP
1
2 Connector
B2B-PH-SM4-TB
JST
1 2
poles
Table 3-49 LIN connector pin assignment
No
Signal name
I/O
Description
1 GND
- Ground
2 LIN_BUS0
IO LIN
signal
Table 3-50 Jumper setting
CN
Function
Description
Default
25
LIN PWR
1-2: It is connected to EML (+5V).
2-3: It is connected to USR (external VCC).
1-2
27
LIN Host/Function select Short=Host
Open=Function
Open
Figure 3-6 LIN circuit of Option board (Selection of LIN PWR and Host/Function)
