3.3.2 P3: TTL-232R-3V3 FTDI cable connector
P3
nRF52840
Function
1
GND
2
P0.11
/RTS (SPI_CS)
3
5V
4
P1.09
URXD (SPI_MOSI)
5
P1.08
UTXD (SPI_MISO)
6
P0.12
/CTS (SPI_SCLK)
Table 10: Pin header P3
In case of Proteus-III, Thyone-I or Setebos-I, the pin header P3 is used to
connect the TTL-232R-3V3 FTDI cable. P3 can also be used for direct host
connection.
3.3.3 P5, P6: Alternative power supply connection
P5
Connection
1,2,3
GND
Table 11: Pin header P5
P6
Connection
1,2,3
3.3V power supply
Table 12: Pin header P6
All the information related to the power supply are described in the chapter
3.3.4 JTAG Debugging Interface
JTAG
nRF52840
Function
1
VDD
7
SWDIO
SWDIO
9
SWCLK
SWCLK
15
P0.18
RESET
4,6,8,10,12,14,16,18,20
GND
2,3,5,11,13,17,19
Not Connected
Table 13: JTAG debugging interface
Mini evaluation board user manual version 1.3
© June 2021
www.we-online.com/wireless-connectivity
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