User's Manual

EK-RA4W1 5. User Circuits
R20UT4683EJ0100 Rev.0.90 Page 19 of 30
Apr.28.20
Table 5-6 Pin Assignments of CN3 (10-Pin Digital Connector)
Pin No.
Signal Name
Specification
MCU
Signal Name
Pin No.
1
SCK
GPIO/SCK
P204/SCL0
9
2
SDA
GPIO/SDA
P407/SDA0
1
3
ADREF
Reserved


4
GND
GND
GND

5
D13
GPIO/SCK/PWM
P102/RSPCKA/GTIOC2B
25
6
D12
GPIO/MISO/PWM/IRQ
P100/MISOA/GTIOC5B/IRQ2
27
7
D11
GPIO/MOSI/PWM/IRQ
P101/MOSIA/GTIOC5A/IRQ1
26
8
D10
GPIO/SS/PWM
P103/SSLA0/GTIOC2A
24
9
D9
GPIO/PWM/IRQ
P104/GTIOC1B/IRQ1
23
10
D8
GPIO/PWM
P106/GTIOC8B
21
Table 5-7 Pin Assignments of CN4 (8-Pin Digital Connector)
Pin No.
Signal Name
Specification
MCU
Signal Name
Pin No.
1
D7
GPIO/RXD/PWM/IRQ
P212/RXD1/GTIOC0B/IRQ3
53
2
D6
GPIO/TXD/PWM/IRQ
P213/TXD1/GTIOC0A/IRQ2
52
3
D5
GPIO/PWM/IRQ
P414/GTIOC0B/IRQ9
55
4
D4
GPIO/PWM/IRQ
P409/GTIOC5A/IRQ6
56
5
D3
GPIO/PWM/IRQ
P105/GTIOC1A/IRQ0
22
6
D2
GPIO/PWM/IRQ
P111/GTIOC3A/IRQ4
17
7
D1
GPIO/TxD/PWM
P109/TXD9/GTIOC1A/SWO*
1
15
8
D0
GPIO/RxD/PWM/IRQ
P110/RXD9/GTIOC1B/IRQ3
16
Note: A serial wire output (SWO) provides trace output. When this pin is in use for the SWO, the other functions are not
available.