User's Manual l TQMx50UC UM 0101 l © 2018 TQ-Group
Page 12
3.5.8
USB 3.0 Interfaces
The TQMx50UC supports two USB 3.0 port at the COM Express™ connector.
Table 6:
USB 3.0 COM Express™ Port Mapping
COM Express™
TQMx50UC
USB 0
USB 0
USB 1
USB 1
Note: USB Port Mapping
The USB 2.0 port 0 must be paired with USB 3.0 SuperSpeed port 0.
The USB 2.0 port 1 must be paired with USB 3.0 SuperSpeed port 1.
3.5.9
General Purpose Input / Output
The TQMx50UC provides eight GPIO signals at the COM Express™ connector. The GPIO signals are shared with the SD card
signals.
The GPIO signals are integrated in the TQ-flexiCFG block and can be configured flexibly. The signals can also be used for special
functions (see 3.4.8).
3.5.10
High Definition Audio Interface
The TQMx50UC provides a High Definition Audio (HDA) interface, which supports two audio codecs at the COM Express™
connector. The HDA_SDIN2 signal at the COM Express™ is not connected.
3.5.11
LPC Bus
The TQMx50UC supports a Low Pin Count (LPC) legacy bus for I/O expansion.
The LPC bus Direct Memory Access (DMA) is not supported.
3.5.12
I2C Bus
The TQMx50UC supports a general purpose I2C port via a dedicated LPC to I2C controller integrated in the TQ-flexiCFG block.
The I2C host controller supports a transfer rate of up to 400 kHz and can be configured independently.
3.5.13
SMBus
The TQMx50UC provides a System Management Bus (SMBus).
3.5.14
Serial Peripheral Interface
The TQMx50UC provides a Serial Peripheral Interface (SPI) interface.
The SPI interface can only be used for SPI boot Flash devices.
