mpc8314e Freescale Semiconductor, Inc, mpc8314e Datasheet - Page 65

• Manufacturer Part Number: mpc8314e
• Description: Powerquicc Ii Pro Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

16.4.3
Table 55
specified at the component pins.
Freescale Semiconductor
Unit interval
Differential peak-to-peak
output voltage
Minimum receiver eye
width
Parameter
defines the specifications for the differential input at all receivers (RXs). The parameters are
Figure 49. Minimum Transmitter Timing and Voltage Output Compliance Specifications
Differential Receiver (RX) Input Specifications
MPC8314E PowerQUICC
Table 55. Differential Receiver (RX) Input Specifications
(D+ D– Crossing Point)
V
Symbol
RX-DIFFp-p
T
RX-EYE
V
TX-DIFF
UI
= 0 mV
566 mV (3 dB) >= V
™
0.7 UI = UI – 0.3 UI(J
Each UI is 400 ps ± 300 ppm.
UI does not account for
Spread Spectrum Clock
dictated variations.
V
V
The maximum interconnect
media and Transmitter jitter
that can be tolerated by the
Receiver can be derived as
T
U
II Pro Processor Hardware Specifications, Rev. 0
RX-MAX-JITTER
RX-DIFFp-p
RX-D-
RX-EYE
V
V
[De-emphasized Bit]
TX-DIFFp-p-MIN
TX-DIFFp-p-MIN
|
[Transition Bit]
[Transition Bit]
= 0.6 UI.
Comments
TX-DIFFp-p-MIN
= 2*|V
= 800 mV
= 800 mV
= 1 -
TX-TOTAL-MAX
RX-D+
>= 505 mV (4 dB)
-
(D+ D– Crossing Point)
)
V
TX-DIFF
399.88
0.175
Min
0.4
= 0 mV
Typical
400
—
—
400.12
1.200
Max
—
Units
ps
UI
V
PCI Express
Notes
2, 3
1
2
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