MPC8315E-RDBA Freescale, MPC8315E-RDBA Datasheet - Page 62

• Manufacturer Part Number: MPC8315E-RDBA
• Manufacturer: Freescale

Specifications of MPC8315E-RDBA

• Lead Free Status / RoHS Status: Compliant

PCI Express
The other detailed AC requirements of the SerDes Reference Clocks is defined by each interface protocol
based on application usage. Refer to the following sections for detailed information:
15.2.4.1
SD_REF_CLK/SD_REF_CLK are not intended to be used with, and should not be clocked by, a spread
spectrum clock source.
15.3
Figure 49
The DC and AC specification of SerDes data lanes are defined in each interface protocol section below
(PCI Express or SGMII) in this document based on the application usage:
Note that external AC Coupling capacitor is required for the above two serial transmission protocols with
the capacitor value defined in specification of each protocol section.
16 PCI Express
This section describes the DC and AC electrical specifications for the PCI Express bus of the MPC8315E.
16.1
For more information, see
62
•
•
•
•
Section 9.5.2, “AC Requirements for SGMII SD_REF_CLK and
Section 16.2, “AC Requirements for PCI Express SerDes
Section 9.5, “SGMII Interface Electrical
Section 16, “PCI
SerDes Transmitter and Receiver Reference Circuits
DC Requirements for PCI Express SD_REF_CLK and
SD_REF_CLK
shows the reference circuits for SerDes data lane’s transmitter and receiver.
Spread Spectrum Clock
Transmitter
MPC8315E PowerQUICC
Figure 49. SerDes Transmitter and Receiver Reference Circuits
Express”
Section 15.2, “SerDes Reference
50 Ω
50 Ω
TXn
TXn
™
II Pro Processor Hardware Specifications, Rev. 0
Characteristics”
RXn
RXn
Clocks.”
Clocks”
50 Ω
50 Ω
SD_REF_CLK”
Receiver
Freescale Semiconductor