NuMaker-M256SD
May 20, 2022
Page
16
of 52
Rev 1.00
N
UMA
K
E
R
-M
2
56
S
D
U
S
E
R
MA
N
UA
L
Ma
k
er Nu
-m
be
d
NUC
47
2
Us
er Man
ua
l
3.3.3 Arduino UNO Compatible Extension Connectors
Figure 3-4 shows the Arduino UNO compatible extension connectors.
BPWM0_CH5
PA.5
D8
BPWM0_CH4
PA.4
D9
SPI0_SS
BPWM0_CH3
PA.3
D10
SPI0_MOSI
BPWM0_CH0
PA.0
D11
SPI0_MISO
BPWM0_CH1
PA.1
D12
SPI0_CLK
BPWM0_CH2
PA.2
D13
VSS
VSS
VREF
VREF
I2C0_SDA
PC.0
SDA
I2C0_SCL
PC.1
SCL
UART1_RXD
PB.2
D0
UART1_TXD
PB.3
D1
UART2_RXD
PC.4
D2
UART2_TXD
PC.5
D3
PC.3
D4
PC.2
D5
TM2
PA.7
D6
TM3
PA.6
D7
VIN
VSS
VSS
5V
3V
RST
IOREF
VDD
NC
A5
PB.1
EADC0_CH1
UART2_TXD
A4
PB.0
EADC0_CH0
UART2_RXD
A3
PB.4
EADC0_CH4
A2
PB.5
EADC0_CH5
A1
PB.6
EADC0_CH6
A0
PB.7
EADC0_CH7
Figure 3-4 Arduino UNO Compatible Extension Connectors