Ublox EVK-NINA-B400, User Manual

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EVK-NINA-B4 - User guide
UBX-19054587 - R04 Board configuration Page 22 of 40
C1 - Public
Figure 14: Jumper headers J19 and J9 that are used to isolate specific NINA signals
Connector Pin no. Schematic net name Description
J19 1 RESET_N NINA reset signal, active low
2 RESET_N_I Connects to the Interface MCU’s reset line
3 SWDIO SWD data signal
4 SWDIO_I Interface MCU SWD data signal, used to program/debug the NINA module
5 SWDCLK SWD clock signal
6 SWDCLK_I Interface MCU SWD data signal, used to program/debug the NINA module
7 GPIO_8 NINA-B40: GPIO or TRACE, NINA-B41: BLUE signal
8 BLUE RGB diode blue signal, active low
9 GPIO_7/
SWITCH_1 NINA-B40: GPIO, can be used as either user LED output or push-button input
NINA-B41: SWITCH_1 and GREEN signal
10 GREEN RGB diode green signal, active low
11 GPIO_1 NINA-B40: GPIO, can be used as user LED output, NINA-B41: RED signal
12 RED RGB diode red signal, active low
J9 1 GPIO_16/
UART_DTR NINA-B40: analog capable GPIO signal
NINA-B41: UART DTR output
2 UART_DTR_I UART to USB DTR signal
3 GPIO_17/
UART_DSR NINA-B40: analog capable GPIO signal
NINA-B41: UART DSR input
4 UART_DSR_I UART to USB DSR signal
5 GPIO_20/
UART_RTS NINA-B40: analog capable GPIO signal
NINA-B41: UART RTS output
6 UART_RTS_I UART to USB RTS signal
7 GPIO_21/
UART_CTS NINA-B40: GPIO signal
NINA-B41: UART CTS input
8 UART_CTS_I UART to USB CTS signal
9 GPIO_22/
UART_TXD NINA-B40: GPIO signal
NINA-B41: UART TXD output
10 UART_TXD_I UART to USB TXD signal
11 GPIO_23/
UART_RXD NINA-B40: analog capable GPIO signal
NINA-B41: UART RXD input
12 UART_RXD_I UART to USB RXD signal
Table 8: Pinout of the jumper headers - J19 and J9
J9 J19
J9 J19
12
11
2
1 12
11
2
1
RE
SET
_MCU
RE
SET
_N
S
WDIO
S
WD
CL
K
GP
IO
_8
GP
IO
_7
GP
IO
_1
GP
IO
_1
6
GP
IO
_1
7
GP
IO
_2
0
GP
IO
_2
1
GP
IO
_2
2
GP
IO
_2
3
S
WDIO
_MCU
S
WD
CL
K_MCU
R
GB
_BL
UE
R
GB
_GREEN
R
GB
_RE
D
U
AR
T
_D
TR
U
AR
T
_DSR
U
AR
T
_R
T
S
U
AR
T
_C
T
S
U
AR
T
_T
XD
U
AR
T
_RXD
NINA Signal Jumper Headers