mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 59

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

For recommended operating conditions, see
2.6.3.4
This section describes the RMII transmit and receive AC timing specifications.
2.6.3.4.1
The following table shows the RMII transmit AC timing specifications.
The following figure shows the RMII transmit AC timing diagram.
2.6.3.4.2
The following table provides the RMII receive AC timing specifications.
Freescale Semiconductor
For recommended operating conditions, see
REF_CLK clock period
REF_CLK duty cycle
REF_CLK peak-to-peak jitter
Rise time REF_CLK (20%–80%)
REF_CLK clock period
REF_CLK duty cycle
REF_CLK peak-to-peak jitter
Rise time REF_CLK (20%–80%)
Fall time REF_CLK (80%–20%)
REF_CLK to RMII data TXD[1:0], TX_EN delay
RMII AC Timing Specifications
RMII Transmit AC Timing Specifications
RMII Receive AC Timing Specifications
REF_CLK
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
TXD[1:0]
TX_EN
TX_ER
Parameter
Parameter
Table 30. RMII Transmit AC Timing Specifications
Table 31. RMII Receive AC Timing Specifications
Figure 19. RMII Transmit AC Timing Diagram
t
Table 3
Table 3
RMTH
t
RMT
Symbol
t
t
t
RMTDX
t
t
t
RMTH
RMTR
RMTF
RMTJ
RMT
Symbol
t
t
RMTDX
RMTF
t
t
t
t
RMRH
RMRR
RMRJ
RMR
Min
1.0
1.0
2.0
35
—
—
Min
t
1.0
35
RMTR
—
—
20.0
Typ
—
—
—
—
—
20.0
Typ
—
—
—
Max
10.0
250
4.0
4.0
65
—
Max
250
4.0
65
—
Unit
Ethernet Interface
ns
ps
ns
ns
ns
%
Unit
ns
ps
ns
%
Note
—
—
—
—
—
—
Note
—
1
1
1
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