MCF5481 FREESCALE [Freescale Semiconductor, Inc], MCF5481 Datasheet - Page 20

• Manufacturer Part Number: MCF5481
• Description: Microprocessor Electrical Characteristics
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Fast Ethernet AC Timing Specifications
11.3 MII Async Inputs Signal Timing (CRS, COL)
11.4 MII Serial Management Channel Timing (MDIO,MDC)
20
Num
M9
Num
M10
M11
M12
M13
M14
M15
CRS, COL minimum pulse width
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
MDIO (Output)
CRS, COL
MCF548x Integrated Microprocessor Electrical Characteristics, Rev. 2.1
MDC (Output)
MDIO (Input)
Figure 18. MII Serial Management Channel TIming Diagram
Table 18. MII Serial Management Channel Signal Timing
Figure 17. MII Async Inputs Timing Diagram
Characteristic
Table 17. MII Transmit Signal Timing
Characteristic
M9
M14
M12
M10
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