mpc8641 Freescale Semiconductor, Inc, mpc8641 Datasheet - Page 43

• Manufacturer Part Number: mpc8641
• Description: Integrated Host Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

9
The electrical characteristics specified here apply to MII management interface signals MDIO
(management data input/output) and MDC (management data clock). The electrical characteristics for
GMII, RGMII, RMII, TBI and RTBI are specified in
Ethernet (eTSEC), MII Management.”
9.1
The MDC and MDIO are defined to operate at a supply voltage of 3.3 V. The DC electrical characteristics
for MDIO and MDC are provided in
9.2
Table 39
Freescale Semiconductor
At recommended operating conditions with OV
MDC frequency
MDC period
MDC clock pulse width high
MDC to MDIO valid
MDC to MDIO delay
MDIO to MDC setup time
Ethernet Management Interface Electrical
Characteristics
Parameter/Condition
provides the MII management AC timing specifications.
Supply voltage (3.3 V)
Output high voltage
(OV
Output low voltage
(OV
Input high voltage
Input low voltage
Input high current
(OV
Input low current
(OV
Note:
1. Note that the symbol V
MII Management DC Electrical Characteristics
MII Management AC Electrical Specifications
DD
DD
DD
DD
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
= Min, I
=Min, I
= Max, V
= Max, V
Parameter
OL
OH
IN
IN
= 1.0 mA)
= –1.0 mA)
= 0.5 V)
1
Table 38. MII Management DC Electrical Characteristics
= 2.1 V)
Table 39. MII Management AC Timing Specifications
IN
, in this case, represents the OV
DD
Symbol
t
t
t
MDKHDX
MDKHDV
MDDVKH
t
is 3.3 V ± 5%.
MDCH
Table
f
t
MDC
MDC
Symbol
OV
1
V
V
V
38.
V
I
I
OH
IH
OL
IL
IH
IL
DD
16*t
Min
MPXCLK
2.5
80
32
10
5
“Section 8, “Ethernet: Enhanced Three-Speed
3.135
–600
2.10
1.70
Min
—
—
—
IN
Ethernet Management Interface Electrical Characteristics
symbol referenced in
Typ
—
—
—
—
—
—
3.465
16*t
Max
0.50
0.90
—
—
40
—
Max
400
MPXCLK
9.3
—
—
—
Table 1
and
Unit
Table
MHz
Unit
μA
μA
V
V
V
V
V
ns
ns
ns
ns
ns
2.
Notes
2, 4
3, 5
—
—
—
5
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