ADLINK LEC-iMX6 - Manual (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
Master
Optional
I2C0
I2C1 I2C2
Master
DDC
PMIC
I2C_PM
I2C_CAM
I2C_GP
I2C_LCD
HDMI_CTRL
R7
R3
R4
R5
R6
R2
R1
R8
GPIO Expander
HDMI DDC
NI
Slave
Slave
Optional
NI
Slave
Slave
Slave
Slave
Master
Master
Master Slave
R9
RTC
Slave
Temp sens
Slave
iMX6
Processor