MCF5373CAB180 datasheet(32/46 Pages) NXP

tên linh kiện	MCF5373CAB180

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MCF537x ColdFire® Microprocessor Data Sheet, Rev. 4

Electrical Characteristics

Freescale Semiconductor

Figure 19. MII Transmit Signal Timing Diagram

5.13.3

MII Async Inputs Signal Timing

Table 20 lists MII asynchronous inputs signal timing.

Figure 20. MII Async Inputs Timing Diagram

5.13.4

MII Serial Management Channel Timing

Table 21 lists MII serial management channel timings. The FEC functions correctly with a maximum MDC frequency of 2.5

MHz.

Table 20. MII Async Inputs Signal Timing

Num

Characteristic

Min

Max

Unit

FEC_CRS, FEC_COL minimum pulse width

1.5

—

FEC_TXCLK period

Table 21. MII Serial Management Channel Timing

Num

Characteristic

Min

Max

Unit

M10

FEC_MDC falling edge to FEC_MDIO output invalid (minimum

propagation delay)

0—

M11

FEC_MDC falling edge to FEC_MDIO output valid (max prop delay)

—

M12

FEC_MDIO (input) to FEC_MDC rising edge setup

—

M13

FEC_MDIO (input) to FEC_MDC rising edge hold

—

M14

FEC_MDC pulse width high

40%

60%

FEC_MDC period

M15

FEC_MDC pulse width low

40%

60%

FEC_MDC period

FEC_TXCLK (input)

FEC_TXD[3:0] (outputs)

FEC_TXEN

FEC_TXER

FEC_CRS

FEC_COL

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