MIPI CSI-2 Intel® FPGA IP User Guide

ID 813926
Date 4/26/2024
Public

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4.3.1. D-PHY PHY Protocol Interface (PPI) Clock Frequencies

The MIPI D-PHY Intel FPGA IP generates high-speed word clocks on the PPI interface that are used by the CSI-2 Receiver and Transmitter to interface with the D-PHY. The frequency of these clocks are:

Equation 3. D-PHY PPI Clock Frequencies

Table 19.  MIPI D-PHY Clock Frequency of Fabric Interface
PPI Bus Width (Bits) Line Rate (Mbps) rx or tx_word_clk_hs_d0 (MHz)
16 400 25
1500 93.75
2500 156.25
Equation 4. Derivation of the axi4_clk

Table 20.  AXI4-Streaming Video Clock (axi4s_clk) Examples
Video Data Type Line Rate (Mbps) PPI_Bus Width (Bits) rx_word_clk_hs_dX (MHz) Lanes Pixels in Parallel Bits per Pixel axi4s_clk (MHz)
RAW10 800 16 50 2 1 10 >160
RGB888 1500 16 93.75 4 2 24 >125
YUV422 8-bit 1000 16 62.5 8 4 8 >250