mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 62

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

Ethernet Interface
The following figure provides the AC test load.
The following figure shows the TBI receive AC timing diagram.
62
For recommended operating conditions, see
RCG[9:0] hold time to rising PMA_RX_CLK
PMA_RX_CLK[0:1] clock rise time (20%–80%)
PMA_RX_CLK[0:1] clock fall time (80%–20%)
Note:
1. The frequency of RX_CLK should not exceed the frequency of gigabit Ethernet reference clock 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.
PMA_RX_CLK1
PMA_RX_CLK0
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
Parameter
RCG[9:0]
Table 33. TBI Receive AC Timing Specifications (continued)
Output
Figure 24. TBI Receive AC Timing Diagram
Table 3
t
t
SKTRX
TRXH
t
TRDVKH
Figure 23. AC Test Load
Z
t
0
TRX
= 50 Ω
t
TRXH
Symbol
t
TRDXKH
Valid Data
t
t
TRXR
TRXF
t
TRXF
Valid Data
Min
R
1.5
0.7
0.7
L
t
TRDXKH
= 50 Ω
t
TRXR
t
TRDVKH
Typ
—
—
—
LV
t
TRDXKH
DD
/2
Max
2.4
2.4
—
Freescale Semiconductor
Unit
ns
ns
ns
Note
—
2
2