Seco SBC-C20 User Manual page 35

GPIO connector
GPIO connector CN38
Pin Signal Pin Signal
1 VDD_3P3V 6 GPIO_4
2 GPIO_0 7 GPIO_5
3 GPIO_1 8 GPIO_6
4 GPIO_2 9 GPIO_7
5 GPIO_3 10 GND
GPIO_2: General purpose IO #2, electrical level VDD_3P3V, co
GPIO_3: General purpose IO #3, electrical level VDD_3P3V, co
GPIO_4: General purpose IO #4, electrical level VDD_3P3V, connected to i.MX
GPIO_5: General purpose IO #5, electrical level VDD_3P3V, co
GPIO_6: General purpose IO #6, electrical level VDD_3P3V, co
GPIO_7: General purpose IO #7, electrical level VDD_3P3V, co
SPI Connector
i.MX8M enhanced configurable serial peripheral interface (ECSPI) #1 is externally available on connector CN40,
SPI Connector CN40
which is a 6-pin p1.27mm connector type Molex p/n 53398-0671 or equivalent, with pinout shown in the table
on the left.
Pin Signal
Mating connector: MOLEX 51021-0600 receptacle with MOLEX 50079-8000 female crimp terminals.
1 VDD_3P3V
Signal description
2 EXT_SPI_CS
EXT_SPI_CS: SPI chip select, output signal, active high, electrical level VDD_3P3V. This signal is activated when
3 EXT_SPI_MISO
this interface is used as communication with external devices. It is managed by i.MX8M signal ECSPI_SS02 through i.MX8M
4 EXT_SPI_MOSI
EXT_SPI_MISO: SPI Master Input Slave Output, input signal, electrical level VDD_3P3V.
5 EXT_SPI_SCLK
EXT_SPI_MOSI: SPI Master Output Slave Input, ouput signal, electrical level VDD_3P3V.
6 GND
EXT_SPI_SCLK: SPI Serial Clock, electrical level VDD_3P3V
SBC-C20
SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
SECO SBC-C20 board offers a dedicated connector with 8x General Purpose GPIOs,
directly managed by the i.MX8M processor.
These GPIOS are available on connector CN38, which is a 10-pin p1.27mm connector
type Molex p/n 53398-1071 or equivalent, with pinout shown in the table on the left.
Mating connector: MOLEX 51021-1000 receptacle with 50079-8000 female crimp terminals.
GPIO_0: General purpose IO #0, electrical level VDD_3P3V, co
ESCPI2_MOSI (pad E5)
GPIO_1: General purpose IO #1, electrical level VDD_3P3V, co
ESCPI2_SCLK (pad C5)
N6)
TA06 (pad L19)
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