mcf5208 Freescale Semiconductor, Inc, mcf5208 Datasheet - Page 39

• Manufacturer Part Number: mcf5208
• Description: Mcf5208 Coldfire Microprocessor Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

5.12.4 MII Serial Management Channel Timing (FEC_MDIO and
Table 21
MDC frequency of 2.5 MHz.
Figure 26
Freescale Semiconductor
Num
M10 FEC_MDC falling edge to FEC_MDIO output invalid (minimum
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
M15 FEC_MDC pulse width low
FEC_MDIO (output)
lists MII serial management channel timings. The FEC functions correctly with a maximum
FEC_MDC (output)
FEC_MDIO (input)
shows MII serial management channel timings listed in
FEC_MDC)
propagation delay)
Figure 26. MII Serial Management Channel Timing Diagram
MCF5208 ColdFire
Table 21. MII Serial Management Channel Timing
Characteristic
M12
®
M13
Microprocessor Data Sheet, Rev. 1
M14
M10
M11
Table
M15
21.
40% 60% FEC_MDC period
40% 60% FEC_MDC period
Min
10
—
0
0
Max
25
—
—
—
Electrical Characteristics
Unit
ns
ns
ns
ns
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