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ORSPI4 датащи(PDF) 182 Page - Lattice Semiconductor |
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ORSPI4 датащи(HTML) 182 Page - Lattice Semiconductor |
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182 / 263 page ![]() Lattice Semiconductor ORCA ORSPI4 Data Sheet 182 The dynamic alignment timing budget for a data transfer between two ORSPI4 devices is shown in Table 62. Table 62. Data Path Parameters for Dynamic Alignment. With PRBS 2^7-1 data pattern, all channels operating, FPGA logic active, 900 Mbit/s data rate with 112.5 Mhz REFCLK, REFCLK jitter of 30 ps, TJ = -40º C to 125º C, 1.425 V to 1.575 V supply. Jitter measured with a Wavecrest SIA-3000. SPI4.2 Status Interface System Timing Reference Points Figure 93 shows the system timing reference points A and B for status channel timing parameters listed in Table 63. Figure 93. Status Channel Reference Points Figure 94. Status Channel Reference Points with Respect to Clock Edge (LVDS and LVTTL I/Os) Description Value (UI peak-to-peak) Transmit clock jitter 0.11 Transmit data jitter with respect to clock edge 0.09 Receive clock jitter tolerance 0.60 Source Sink TSTAT[1:0] / RSTAT[1:0] TSCLK/RSCLK DC Note: Only status signals are shown RSCLK RSTAT (C) Launch Edge T dia T dib (D) Capture Edge t s t h TSCLK TSTAT |
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