mpc8378e Freescale Semiconductor, Inc, mpc8378e Datasheet - Page 28

• Manufacturer Part Number: mpc8378e
• Description: Powerquicc Ii Pro Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

Ethernet: Enhanced Three-Speed Ethernet (eTSEC)
8.3.1
This section describes the SGMII transmit and receive AC timing specifications. Transmitter and receiver
characteristics are measured at the transmitter outputs (L1_SD_TXn and L1_SD_TXn) or at the receiver
inputs (L1_SD_RXn and L1_SD_RXn) as depicted in
8.3.1.1
Table 28
28
At recommended operating conditions with XV
Deterministic Jitter
Total Jitter
Unit Interval
V
V
Notes:
1
OD
OD
Each UI is 800 ps ± 100 ppm.
fall time (80%–20%)
rise time (20%–80%)
provides the SGMII transmit AC timing targets. Source synchronous clocking is not supported.
Parameter
SGMII AC Timing Specifications
SGMII Transmit AC Timing Specifications
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 3
D+ Package Pin
D– Package Pin
+ Package
Table 28. SGMII Transmit AC Timing Specifications
Silicon
TX
Figure 9. SGMII AC Test/Measurement Load
Symbol
DD_SRDS
t
t
J
J
UI
rise
fall
D
T
= 1.0 V ± 5%.
799.92
Min
—
—
50
50
C = C TX
C = C TX
Figure 9
R = 50Ω
Typical
800
—
—
—
—
respectively.
800.08
Max
0.17
0.35
120
120
R = 50Ω
Freescale Semiconductor
UI
UI
Unit
ps
ps
ps
p-p
p-p
Notes
—
—
—
—
1