Seco Qseven Q7-C26 User Manual page 38

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3.2.13

SPI interface signals

The signals related to SPI are as follows:

SPI_CS0#: SPI primary Chip select, active low output signal. Electrical level +3.3V_RUN

SPI_CS1#: SPI secondary Chip select, active low output signal. Electrical level +3.3V_RUN. This signal must be used only in case there are two SPI devices on the

carrier board, and the first chip select signal (SPI_CS0#) has already been used. It must not be used in case there is only one SPI device

SPI_SCK

SPI_MISO: SPI0 Master Data Input, electrical level +3.3V_RUN. Input to i.MX8 from SPI devices embedded on the Carrier Board

SPI_MOSI: SPI0 Master Data Output, electrical level +3.3V_RUN. Output from i.MX8 to SPI devices embedded on the Carrier Board

3.2.14

GPIO interface signals

The GPIO general-purpose input/output peripheral provides dedicated general-purpose pins that can be configured as either inputs or outputs.

This module provides up to 8xGPIO.

The signals related to GPIO are as follows:

GPIO[0:7]: General Purpose Input/Output, electrical level +3.3V_RUN.

3.2.15

CAN interface signals

The NXP i.MX8 processors include a Flexible Controller Area Network (FLEXCAN) module which is a communication controller implementing the CAN protocol

according to the CAN 2.0B protocol specification.

The signals related to CAN are as follows:

CAN0_TX: CAN transmitting signal, electrical level +3.3V_RUN

CAN0_RX: CAN receiving signal, electrical level +3.3V_RUN

Please consider that it is not possible to connect Qseven® CAN interface to any CAN Bus directly, it is necessary to integrate a CAN Bus Transceiver in the Carrier

board.

3.2.16

SATA interface signals

The NXP i.MX8 processors include a SATA Advanced Host Controller Interface (AHCI) which is an hardware mechanism that allows software to communicate with

Serial ATA devices. This interface is Gen3 compliant, with support of 1.5Gbps, 3.0 Gbps and 6.0 Gbps data rates

Here following the signals related to SATA interface:

SATA0_TX+/SATA0_TX-: Serial ATA Channel #0 Transmit differential pair.

SATA0_RX+/SATA0_RX-: Serial ATA Channel #0 Receive differential pair.

SATA_ACT#: Serial ATA Activity Led. Active low output signal at +3.3V_RUN voltage.

10nF AC series decoupling capacitors are placed on each line of SATA differential pairs.

On the carrier board, these signals can be carried out directly to the SATA connector.

Q7-C26

Q7-C26 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0

3.3V_RUN

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