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RH850/X1x
3.7
3.8
3.9
R20UT3453ED0113 Rev. 1.13
2018-09-11
Analog measurements
In order to perform some sample measurement with the PiggyBoard device
Analog/Digital Converter, two potentiometers are provided.
To supply the IO voltage for the potentiometers and the multiplexer, the pin
header JP138 must be closed.
Signal LEDs
Four LEDs, LED7 to LED10, are provided to allow visual observation of
microcontroller output port states.
The power supply of the LEDs is derived directly from the primary board supply
voltage (typical 12V).
To connect the signals of the device available at CN1 (PiggyBoard device
connector) to the LEDs, close the switches on SW43 (see table below).
In case different device signals shall be connected to the signal LEDs, the
headers CN129 can be used. Connect a small wire between the related signals
of the device on the PiggyBoard and the signal LEDs. See the table below for
details.
Table 3-11
LED
Switch SW43
LED10
1-8
LED9
2-7
LED8
3-6
LED7
4-5
LCD Interface
An interface is provided to for the purpose of connecting a graphics LCD to the
mainboard.
Related signals can be found on the connectors CN88, CN98, CN100 and
CN101
To connect the signals of the device available at CN1 (PiggyBoard device
connector) to the Display, close the switches on SW55 and SW56.
The power supply of the display be selected by closing the pin headers JP5 or
JP87.
Connector and
Display function
pin
CN88.5
Display Controller
CN88.6
Display Controller
CN88.7
CN88.8
CN98.1
Alternative signal
connection
CN129.1
CN129.2
CN129.3
CN129.4
CN1/CN3 signal
Display
SD Card CS
ChipSelect
RW Control
Network MainBoard
CN1 signal
DIGIO_0
DIGIO_1
DIGIO_2
DIGIO_3
Device pin /
-function
CN3_10
PWM9
CSIH2CSS1
CN3_21
PWM20
CSIH2CSS2
CN3_26
P11_0
PWM25
Digital I/O
CN3_39
PWM38
Digital I/O
CN3_22
P9_1
P9_2
P8_7
P9_3
13
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