Adlink LEC-iMX6 User Manual download pdf (Page 17)

Interfaces 13

LEC-iMX6

3.8 USB 2.0 Ports

The LEC-iMX6 provides two host USB ports and one OTG port. The two host ports are provided

from a 4-port USB HUB. All Ports are fully compliant with the USB 2.0 Specification.

3.9 SATA

Only the Dual and Quad variants of the LEC-iMX6 module provide a SATA interface. The SATA

interfaces on the Dual and Quad models comply with the following specifications.

 Serial ATA 3.0

 AHCI Revision 1.3

 AMBA 2.0 from ARM

The interface supports 1.5Gb/s and 3.0Gb/s.

3.10 I2C

The CPU provides three I2C master ports, and the SMARC connector provides five I2C slave

ports for Camera, General Purpose, LCD, Power Management, and HDMI Control (private)

interfaces. Refer to the following block diagram. The I2C interfaces operate at data rates up to

400 kbps. All I2C interfaces have 1.8V pull ups with 1k resistors.

3.11 SPI

The LEC-iMX6 provides three SPI interfaces. SPI0 is multiplexed with I2S and connected to the

SMARC connector. SPI1 connects directly to the SMARC connector. The internal SPI interface

connects to the U-Boot flash memory devices.

The voltage levels of the SPI interfaces are 1.8V.

PCIe

Switch

SMARC Connector

DEBUG/Progr

CONNECTOR

I2C2

I2C1

PMIC

I2C

BMC

I2C3

Slave

Master

Optional

I2C0

I2C1I2C2

Master

DDC

PMIC

I2C_PM

I2C_CAM

I2C_GP

I2C_LCD

HDMI_CTRL

GPIO Expander

HDMI DDC

Slave

Optional

Slave

Master

Slave

RTC

Slave

Temp sens

Slave

iMX6

Processor

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Adlink LEC-iMX6 User Manual Page 17

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