Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 1/10/2023
Public

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22.4.3.1. RTC Flow Control Trigger

RTC is an RX FIFO Almost-Full Trigger, where "almost full" refer to two available slots in the FIFO.

The UART controller uses two separate trigger levels for a DMA request and handshake signal (rts_n) in order to maximize throughput on the interface.