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Description Function Circuit Net
Name
Device
Pin
Fit for RS232 Remove for
RS232
SCI2 Spare Serial Port TxD2 69 R31 R37, R32
SCI2 Spare Serial Port RxD2 68 R30 R36, R33
SCI4 Programming serial port TxD4 107 R37 R6, R31, R32
SCI4 Programming serial port RxD4 108 R36 R5, R30, R33
Table 6-3: Serial Port settings
The SCI2 port is also available on J2 and JA2. The SCI3 port is available on JA6.
6.5. Debug LCD Module
A debug LCD module is supplied to be connected to the connector LCD. This should be fitted so that the debug LCD module lies over J3.
Care should be taken to ensure the pins are inserted correctly into LCD. The debug 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.
LCD
Pin Circuit Net Name Device
Pin
Pin Circuit Net Name Device
Pin
1 Ground - 2 5V Only -
3 No Connection - 4 DLCDRS (P34) 94
5 R/W (Wired to Write only) - 6 DLCDE+ 100k pull down to ground (P36) 92
7 No Connection - 8 No connection -
9 No Connection - 10 No connection -
11 DLCDD4 (P20) 52 12 DLCDD5 (P21) 53
13 DLCDD6 (P22) 54 14 DLCDD7 (P23) 55
Table 6-4 Debug LCD Module Connections
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