mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 57

• Manufacturer Part Number: mpc8569e
• Description: Mpc8569e Powerquicc Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

2.6.3.2.1
The following table provides the MII transmit AC timing specifications.
The following figure shows the MII transmit AC timing diagram.
2.6.3.2.2
The following table provides the MII receive AC timing specifications.
Freescale Semiconductor
For recommended operating conditions, see
For recommended operating conditions, see
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 (20%–80%)
TX_CLK data clock fall (80%–20%)
RX_CLK clock period 10 Mbps
RX_CLK clock period 100 Mbps
RX_CLK duty cycle
RXD[3:0], RX_DV, RX_ER setup time to RX_CLK
RXD[3:0], RX_DV, RX_ER hold time to RX_CLK
RX_CLK clock rise (20%–80%)
RX_CLK clock fall time (80%–20%)
Note:
1. The frequency of RX_CLK should not exceed the frequency of TX_CLK by more than 300 ppm.
2. System/board must be designed to ensure the input requirement to the device is achieved. Proper device operation is
guaranteed for inputs meeting this requirement by design, simulation, characterization, or functional testing.
MII Transmit AC Timing Specifications
MII Receive AC Timing Specifications
TXD[3:0]
TX_CLK
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
TX_EN
TX_ER
Parameter
Parameter
Table 27. MII Transmit AC Timing Specifications
Table 28. MII Receive AC Timing Specifications
Figure 15. MII Transmit AC Timing Diagram
t
MTXH
Table 3
Table 3
t
MTX
t
t
MRXH
MTXH/
t
Symbol
t
Symbol
t
MTKHDX
MRDVKH
MRDXKH
t
t
t
t
t
t
MRXR
t
t
MTXR
MTXF
MRXF
MRX
MRX
MTX
MTX
/t
t
t
MTX
MRX
MTKHDX
t
MTXF
399.96
39.996
399.96
39.996
10.0
10.0
Min
Min
1.0
1.0
1.0
1.0
35
35
0
t
MTXR
Typ
400
Typ
400
40
40
—
—
—
—
—
—
—
—
—
400.04
40.004
400.04
40.004
Max
Max
4.0
4.0
4.0
4.0
65
25
65
—
—
Ethernet Interface
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
Note
Note
—
—
—
—
—
—
1
1
2
2
2
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