MCF5270 FREESCALE [Freescale Semiconductor, Inc], MCF5270 Datasheet - Page 49

• Manufacturer Part Number: MCF5270
• Description: 32-bit Embedded Controller Division
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Figure 16
8.10.3 MII Async Inputs Signal Timing (ECRS and ECOL)
Table 39
Figure 17
8.10.4 MII Serial Management Channel Timing (EMDIO and EMDC)
Table 40
MDC frequency of 2.5 MHz.
Freescale Semiconductor
Num
M9
Num
M10 EMDC falling edge to EMDIO output invalid (minimum propagation
M11 EMDC falling edge to EMDIO output valid (max prop delay)
M12 EMDIO (input) to EMDC rising edge setup
M13 EMDIO (input) to EMDC rising edge hold
M14 EMDC pulse width high
M15 EMDC pulse width low
lists MII asynchronous inputs signal timing.
lists MII serial management channel timings. The FEC functions correctly with a maximum
shows MII transmit signal timings listed in
shows MII asynchronous input timings listed in
ETXD[3:0] (outputs)
ECRS, ECOL minimum pulse width
ETXCLK (input)
delay)
ETXEN
ETXER
ECRS, ECOL
MCF5271 Integrated Microprocessor Hardware Specification, Rev. 1.2
Table 40. MII Serial Management Channel Timing
Figure 16. MII Transmit Signal Timing Diagram
Figure 17. MII Async Inputs Timing Diagram
Characteristic
Table 39. MII Async Inputs Signal Timing
Characteristic
M5
M6
M7
Table
M9
Table
38.
39.
M8
Min
1.5
Preliminary Electrical Characteristics
40% 60% MDC period
40% 60% MDC period
Min
10
—
0
0
Max
—
Max
25
—
—
—
ETXCLK period
Unit
ns
ns
ns
ns
Unit
49