MPC8321E Freescale Semiconductor, Inc, MPC8321E Datasheet - Page 19

• Manufacturer Part Number: MPC8321E
• Description: Mpc8321e Powerquicc Ii Pro Processor
• Manufacturer: Freescale Semiconductor, Inc

(management data clock). The MII and RMII are defined for 3.3 V. The electrical characteristics for MDIO
and MDC are specified in
8.1.1
All MII and RMII drivers and receivers comply with the DC parametric attributes specified in
The potential applied to the input of a MII or RMII receiver may exceed the potential of the receiver’s
power supply (that is, a MII driver powered from a 3.6-V supply driving V
from a 2.5-V supply). Tolerance for dissimilar MII driver and receiver supply potentials is implicit in these
specifications.
8.2
The AC timing specifications for MII and RMII are presented in this section.
8.2.1
This section describes the MII transmit and receive AC timing specifications.
8.2.1.1
Table 23
Freescale Semiconductor
At recommended operating conditions with OV
Supply voltage 3.3 V
Output high voltage
Output low voltage
Input high voltage
Input low voltage
Input current
TX_CLK clock period 10 Mbps
TX_CLK clock period 100 Mbps
TX_CLK duty cycle
TX_CLK to MII data TXD[3:0], TX_ER, TX_EN delay
TX_CLK data clock rise V
MPC8323E PowerQUICC™ II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 1
provides the MII transmit AC timing specifications.
MII and RMII AC Timing Specifications
Parameter
DC Electrical Characteristics
MII AC Timing Specifications
MII Transmit AC Timing Specifications
Parameter/Condition
IL
(min) to V
Section 8.3, “Ethernet Management Interface Electrical Characteristics.”
Table 22. MII and RMII DC Electrical Characteristics
Table 23. MII Transmit AC Timing Specifications
IH
Symbol
(max)
OV
V
V
DD
V
V
I
OH
IN
OL
IH
IL
DD
of 3.3 V ± 10%.
I
OH
I
OL
= –4.0 mA
= 4.0 mA
—
—
0 V ≤ V
Conditions
t
MTXH
Symbol
t
MTKHDX
IN
—
t
t
t
MTXR
MTX
MTX
≤ OV
/t
OV
OV
MTX
DD
DD
1
DD
—
—
= Min
= Min
Min
1.0
35
—
—
1
OH
GND
2.97
2.40
–0.3
Min
2.0
—
into a MII receiver powered
Typical
400
40
—
—
5
Ethernet and MII Management
OV
OV
DD
DD
Max
3.63
0.50
0.90
±5
Max
4.0
+ 0.3
+ 0.3
65
15
—
—
Table
Unit
Unit
μA
ns
ns
ns
ns
%
V
V
V
V
V
22.
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