MCF5329DS ANALOGICTECH [Advanced Analogic Technologies], MCF5329DS Datasheet - Page 39

• Manufacturer Part Number: MCF5329DS
• Description: MCF5329 ColdFire Microprocessor Data Sheet
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

5.16 Fast Ethernet AC Timing Specifications
MII signals use TTL signal levels compatible with devices operating at either 5.0 V or 3.3 V.
5.16.1 MII Receive Signal Timing (FEC_RXD[3:0], FEC_RXDV,
The receiver functions correctly up to a FEC_RXCLK maximum frequency of 25 MHz +1%. There is no
minimum frequency requirement. In addition, the processor clock frequency must exceed twice the
FEC_RXCLK frequency.
Table 23
Figure 26
Freescale Semiconductor
I2C_SDA
I2C_SCL
Num
M1
M2
M3
M4
FEC_RXD[3:0] (inputs)
lists MII receive channel timings.
FEC_RXCLK (input)
shows MII receive signal timings listed in
FEC_RXER, and FEC_RXCLK)
FEC_RXD[3:0], FEC_RXDV, FEC_RXER to FEC_RXCLK setup
FEC_RXCLK to FEC_RXD[3:0], FEC_RXDV, FEC_RXER hold
FEC_RXCLK pulse width high
FEC_RXCLK pulse width low
FEC_RXER
FEC_RXDV
I1
MCF5329 ColdFire
I2
Figure 26. MII Receive Signal Timing Diagram
Characteristic
Figure 25. I
Table 23. MII Receive Signal Timing
M1
I4
®
I6
Microprocessor Data Sheet, Rev. 0.1
2
M2
C Input/Output Timings
Preliminary
M3
I7
Table
23.
I8
M4
35%
35%
Min
I5
5
5
Preliminary Electrical Characteristics
I3
65%
65%
Max
—
—
FEC_RXCLK period
FEC_RXCLK period
I9
Unit
ns
ns
39