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NORA-W106 pin
ESP32-S3 GPIO
J9
GPIO3 (A)
H7
GPIO46
G3
FSPIIO5 / GPIO11 (A)
J2
JTAG_TCK / GPIO39
H3
FSPII04 / GPIO10 (A)
F3
SPICLK_P / GPIO47
E3
SPICLK_N / GPIO48
D3
FSPIHD / GPIO33
G2
FSPIIO6 / GPIO12 (A)
H2
JTAG_TMS / GPIO42
G1
MTDO / GPIO40
H1
JTAG_TDI / GPIO41
J3
RESET_N
C1
FSPIQ / GPIO37
B1
FSPICLK / GPIO36
C2
FSPID / GPIO35
B3
FSPICS0 / GPIO34
A2
FSPIWP / GPIO38
A5
FSPIDQS / GPIO14 (A)
A6
FSPIIO7 / GPIO13 (A)
F9
GPIO6 (A)
F8
GPIO45
G9
U0RXD / GPIO44
G8
U0TXD / GPIO43
D9
USB_N / GPIO19
C9
USB_P / GPIO20
B6
XTAL_32K_N / GPIO16 (A)
C6
XTAL_32K_P / GPIO15 (A)
Table 1: NORA-W106 pad connections
2.1.4
USB
2.1.4.1
NORA USB (J6_1)
USB-C connector (J6_1) is connected directly to pins C9, D9 of NORA-W106. Power supply is
connected to the secondary input of the battery charger IC. This port is the native NORA-W106 can
be used to communicate directly through USB.
2.1.4.2
UART USB (J6_2)
UART USB-C connector (J6_2) is connected to a Silicon Labs CP2102N-A02-GQFN24 USB-to-UART
bridge. It is connected to pins G8, G9, F8 and F9 (UART0 of NORA-W106) as shown in
NORA-W1 pin
F8
F9
G8
G9
Table 2: NORA-W1 USB to UART bridge connections
UBX-23000692 - R01
C1-Public
ESP32-S3 GPIO
GPIO45
GPIO6 (A)
U0TXD / GPIO43
U0RXD / GPIO44
Hardware description
XPLR-HPG-1 - User guide
Function
MB1-RX
MB1-TX
MB2-AN
MB2-INT
MB2-PWM
MB2-RST
MB2-RX
MB2-TX
MB3-AN
MB3-INT
MB3-PWM
MB3-RST
RESET_N
SPI-CIPO
SPI-CLK
SPI-COPI
SPI-CS0
SPI-CS1
SPI-CS2
SPI-CS3
UART0-CTS
UART0-RTS
UART0-RXD
UART0-TXD
USB-D-
USB-D+
WT/DIR-DIR
WT/DIR-WT
Function
UART0-RTS
UART0-CTS
UART0-TXD
UART0-RXD
Table
2.
Page 17 of 37
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