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6.4. Serial port
The microcontroller programming serial port 1 is connected to the RS232 transceiver. This serial port can optionally be connected to the
RS232 transceiver as well by fitting option resistors. The connections to be fitted are listed in the table 6-3.
A Secondary serial port is connected to the application headers. This is shared with the LIN module.
6.5. LCD Module
A LCD module is supplied to be connected to the connector J8. This should be fitted so that the LCD module lies over J1. Care should be
taken to ensure the pins are inserted correctly into J8.The LCD module uses a 4 bit interface to reduce the pin allocation. No contrast
control is provided; this is set by a resistor on the supplied display module. The module supplied with the RSK only supports 5V operation.
Table 6-4 shows the pin allocation and signal names used on this connector.
Pin
Circuit Net Name
1
Ground
3
No Connection
5
R/W (Wired to Write only)
7
No Connection
9
No Connection
11
LCD_D4
13
LCD_D6
Description
Function
TxD1
Programming Serial Port
RxD1
Programming Serial Port
Table 6-3: Serial Port settings
Device
Pin
-
-
-
-
-
51
49
Table 6-4: LCD Module Connections
Fit for RS232
R45
R46
J8
Pin
Circuit Net Name
2
5V Only
4
LCD_RS
6
LCD_E
8
No Connection
10
No Connection
12
LCD_D5
14
LCD_D7
8
Device
Pin
-
31
30
-
-
50
48
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