Renesas RL78/G1D, User Manual

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RL78/G1D Evaluation Board
R30UZ0048EJ0130 Rev.1.30 Page
9
of
22
Dec. 1, 2015
5. I/O
General-purpose ports on the RL78/G1D module are connected to the extension board for Bluetooth Low Energy
evaluation via connectors. This section describes the interface for each I/O.
5.1 Push Switches
To use the push switches, enable the pull-up resistors incorporated in the RL78/G1D module. The level of the
corresponding general-purpose ports becomes high when the switches are off and low when the switches are on.
Table 5-1 shows the relationship between the push switch ports and the RL78/G1D module.
Table 5-1 Push Switches
Pin No. Port
SW1 CN1-19 N.C.
SW2 CN1-20 P16
SW3 CN1-18 P23
SW4 CN1-16 P22
Remark: Enable the on-chip pull-up resistor connected to P16 (in input mode) on the RL78/G1D. P22 is pulled up on
the extension board for Bluetooth Low Energy evaluation. Connect a resistor of 100 k

to CN4 to pull up
P23.
5.2 DIP Switch
To use the DIP switch, enable the pull-up resistors on the RL78/G1D module. The level of the corresponding
general-purpose ports becomes high when the switch is set to off and low when the switch is set to on. At shipment,
SW6-1 to SW6-4 are set to off. Table 5-2 shows the relationship between the DIP switch and the RL78/G1D module
ports.
Table 5-2 DIP Switch
Pin No. Port
SW6-1 CN1-14 P10
SW6-2 CN1-17

SW6-3 CN1-15

SW6-4 CN1-13 P02