MCF5480 Freescale Semiconductor, Inc, MCF5480 Datasheet - Page 24

• Manufacturer Part Number: MCF5480
• Description: Mcf548x Coldfire Microprocessor
• Manufacturer: Freescale Semiconductor, Inc

Fast Ethernet AC Timing Specifications
11.3
11.4
24
Num
M9
Num
M10
M11
M12
M13
M14
M15
MII Async Inputs Signal Timing (CRS, COL)
MII Serial Management Channel Timing (MDIO,MDC)
MDC falling edge to MDIO output invalid
(min prop delay)
MDC falling edge to MDIO output valid
(max prop delay)
MDIO (input) to MDC rising edge setup
MDIO (input) to MDC rising edge hold
MDC pulse width high
MDC pulse width low
CRS, COL
MDIO (Output)
MDC (Output)
MDIO (Input)
Figure 22. MII Serial Management Channel TIming Diagram
Table 18. MII Serial Management Channel Signal Timing
CRS, COL minimum pulse width
Figure 21. MII Async Inputs Timing Diagram
Characteristic
MCF548x ColdFire
Table 17. MII Transmit Signal Timing
Characteristic
M14
M12
M9
M10
®
Microprocessor, Rev. 4
M13
M15
M11
Min
1.5
40%
40%
Min
10
—
0
0
Max
—
Max
60%
60%
25
—
—
—
Freescale Semiconductor
TX_CLK period
MDC period
MDC period
Unit
Unit
ns
ns
ns
ns