mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 70

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

Ethernet Interface
2.6.4.2.2
The following table provides the SGMII transmit AC timing specifications. A source synchronous clock is not supported. The
AC timing specifications do not include RefClk jitter.
2.6.4.2.3
Transmitter and receiver AC characteristics are measured at the transmitter outputs (SD_TXn and SD_TXn) or at the receiver
inputs (SD_RXn and SD_RXn), as depicted in the following figure, respectively.
2.6.4.2.4
The following table provides the SGMII receive AC timing specifications. The AC timing specifications do not include RefClk
jitter. Source synchronous clocking is not supported. Clock is recovered from the data.
70
At recommended operating conditions with XV
At recommended operating conditions with XV
Deterministic jitter
Total jitter
Unit interval
AC coupling capacitor
Notes:
1. Each UI is 800 ps ± 100 ppm.
2. See
3. The external AC coupling capacitor is required. It is recommended that it be placed near the device transmitter outputs.
Deterministic Jitter Tolerance
Combined Deterministic and Random Jitter Tolerance
Figure 30
Parameter
SGMII Transmit AC Timing Specifications
SGMII AC Measurement Details
SGMII Receiver AC Timing Specifications
for single frequency sinusoidal jitter limits.
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
Parameter
Table 38. SGMII Transmit AC Timing Specifications
Table 39. SGMII Receive AC Timing Specifications
D+ Package
D+ Package
D– Package
Figure 29. SGMII AC Test/Measurement Load
+ Package
DD
DD
Silicon
Pin
Pin
Pin
= 1.0 V ± 3% and 1.1 V ± 3%.
TX
= 1.0 V ± 3%. and 1.1 V ± 3%.
Symbol
C
JD
JT
UI
TX
Symbol
C = C
C = C
JDR
JD
R = 50 Ω
TX
TX
799.92
Min
75
—
—
0.37
0.55
Min
Typ
800
100
R = 50 Ω
—
—
Typ
—
—
800.08
Max
0.17
0.35
200
Max
—
—
Freescale Semiconductor
UI p-p
UI p-p
UI p-p
UI p-p
Unit
Unit
nF
ps
Notes
Notes
1, 2, 4
1, 2, 4
—
2
1
3