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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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VSC8540RT 데이터시트(PDF) 72 Page - Microchip Technology |
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VSC8540RT 데이터시트(HTML) 72 Page - Microchip Technology |
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72 / 87 page  VSC8540RT DS60001603E-page 72 2022 Microchip Technology Inc. and its subsidiaries 8.4.7 MII RECEIVE The following table lists the characteristics when using the device in MII receive mode. For information about the MII receive timing, see the following figure FIGURE 8-4: MII RECEIVE TIMING 8.4.8 MII TRANSMIT The following table lists the characteristics when using the device in MII transmit mode. For information about the MII transmit timing, see the following figure. FIGURE 8-5: MII RECEIVE TIMING TABLE 8-23: MII RECEIVE AC CHARACTERISTICS Parameter Symbol Minimum Typical Maximum Unit RX_CLK to RXD[3:0], RX_DV, RX_ER delay tDELAY 10 30 ns RX_CLK duty cycle DC 35 65 % TABLE 8-24: MII TRANSMIT AC CHARACTERISTICS Parameter Symbol Minimum Typical Maximum Unit Condition Setup to MII_TXCLK ris- ing tSU 15 ns Hold from MII_TXCLK ris- ing tH 0 ns Measured from 0.8V to 2.0V, VDDMAC = 2.5V and 3.3V RX_CLK RXD[3:0] RX_DV RX_ER Valid Data tDELAY MII_TXCLK TXD[3:0] TX_EN TX_ER tSU tH Valid Data |
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