Hard Processor System Technical Reference Manual: Agilex™ 5 SoCs

ID 814346
Date 7/19/2024
Public

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5.13.6.7.5. Receive Watermark Level

Similar to choosing the transmit watermark level described earlier, the receive watermark level, decoded watermark level of IIR_FCR.RT, should be set to minimize the probability of overflow, as shown in the Receive FIFO Buffer diagram. It is a tradeoff between the number of DMA burst transactions required per block versus the probability of an overflow occurring.