MPC862 datasheet(71/88 Pages) MOTOROLA

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MOTOROLA

MPC862/857T/857DSL Hardware Speciﬁcations

FEC Electrical Characteristics

Figure 74 shows the MII transmit signal timing diagram.

Figure 74. MII Transmit Signal Timing Diagram

13.3

MII Async Inputs Signal Timing (MII_CRS, MII_COL)

Table 31 provides information on the MII async inputs signal timing.

Figure 75 shows the MII asynchronous inputs signal timing diagram.

Figure 75. MII Async Inputs Timing Diagram

MII_TX_CLK pulse width high

35%

65%

MII_TX_CLK period

MII_TX_CLK pulse width low

35%

65%

MII_TX_CLK period

Table 31. MII Async Inputs Signal Timing

Num

Characteristic

Min

Max

Unit

MII_CRS, MII_COL minimum pulse width

1.5

—

MII_TX_CLK period

Table 30. MII Transmit Signal Timing (continued)

Num

Characteristic

Min

Max

Unit

MII_TX_CLK (input)

MII_TXD[3:0] (outputs)

MII_TX_EN

MII_TX_ER

MII_CRS, MII_COL

Freescale Semiconductor, Inc.

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Go to: www.freescale.com

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