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VSC8540RT Scheda tecnica(PDF) 72 Page - Microchip Technology

Il numero della parte VSC8540RT
Spiegazioni elettronici  Radiation-Tolerant Single Port Fast Ethernet Copper PHY with RGMII/MII/RMII Interfaces
PDF  87 Pages
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Produttore elettronici  MICROCHIP [Microchip Technology]
Homepage  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

VSC8540RT Scheda tecnica(HTML) 72 Page - Microchip Technology

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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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