4 Channel High Speed Sync/Async Serial Interface

TQMC401 is a VITA 93.0 compatible single-width QMC providing four high speed serial data communication channels.
The serial communication controller is implemented in FPGA logic along with the bus master capable PCIe interface, guaranteeing long term availability and having the option to implement additional functions in the future.
Data transfer to and from host memory is handled via TQMC401 initiated DMA cycles for minimum host/CPU intervention.
Each channel has a receive and transmit FIFO of 512 long words (32 bit) per channel for high data throughput.
Several serial communication protocols are supported for each channel, such as asynchronous (with oversampling), isochronous, synchronous and HDLC mode.
Available signal encodings for synchronous data communication are NRZ, NRZI, FM0, FM1 and Manchester.
Available clock sources are 14.7456 MHz for standard asynchronous baud rates, 10 MHz for the 10 Mbit/s synchronous data rate and 24 MHz for other baud or data rates.
Each channel provides various interrupt sources which can be enabled or disabled individually.
The Differential I/O lines for EIA-422, EIA-485 Full-Duplex are terminated with 120 Ω on-board.