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ADSP-BF608BBCZ-5 Datasheet(PDF) 96 Page - Analog Devices |
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ADSP-BF608BBCZ-5 Datasheet(HTML) 96 Page - Analog Devices |
96 / 112 page Rev. 0 | Page 96 of 112 | June 2013 ADSP-BF606/ADSP-BF607/ADSP-BF608/ADSP-BF609 10/100 Ethernet MAC Controller Timing Table 64 through Table 66 and Figure 50 through Figure 52 describe the 10/100 Ethernet MAC Controller operations. Table 64. 10/100 Ethernet MAC Controller Timing: RMII Receive Signal Parameter1 VDD_EXT 1.8V/3.3V Nominal Min Max Unit Timing Requirements tREFCLKF ETHx_REFCLK Frequency (fSCLK0 = SCLK0 Frequency) None 50 + 1% MHz tREFCLKW ETHx_REFCLK Width (tREFCLK = ETHx_REFCLK Period) tREFCLK × 35% tREFCLK × 65% ns tREFCLKIS Rx Input Valid to RMII ETHx_REFCLK Rising Edge (Data In Setup) 4 ns tREFCLKIH RMII ETHx_REFCLK Rising Edge to Rx Input Invalid (Data In Hold) 2.2 ns 1 RMII inputs synchronous to RMII REF_CLK are ERxD1–0, RMII CRS_DV, and ERxER. Figure 50. 10/100 Ethernet MAC Controller Timing: RMII Receive Signal Table 65. 10/100 Ethernet MAC Controller Timing: RMII Transmit Signal Parameter1 VDD_EXT 1.8V/3.3V Nominal Min Max Unit Switching Characteristics tREFCLKOV RMII ETHx_REFCLK Rising Edge to Transmit Output Valid (Data Out Valid) 14 ns tREFCLKOH RMII ETHx_REFCLK Rising Edge to Transmit Output Invalid (Data Out Hold) 2 ns 1 RMII outputs synchronous to RMII REF_CLK are ETxD1–0. Figure 51. 10/100 Ethernet MAC Controller Timing: RMII Transmit Signal tREFCLKIS tREFCLKIH ETHx_RXD1–0 ETHx_CRS ETHx_RXERR RMII_REF_CLK tREFCLKW tREFCLK tREFCLKOV tREFCLKOH RMII_REF_CLK ETHx_TXD1–0 ETHx_TXEN tREFCLK |
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