MPC8308VMAGDA Freescale Semiconductor, MPC8308VMAGDA Datasheet - Page 34

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MPC8308VMAGDA

Manufacturer Part Number
MPC8308VMAGDA
Description
Microprocessors - MPU E300 MP PbFr 400
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of MPC8308VMAGDA

Rohs
yes
Processor Series
MPC8308
Core
e300
Maximum Clock Frequency
400 MHz
Interface Type
I2C, JTAG, UART
Operating Supply Voltage
0.95 V to 1.05 V
Maximum Operating Temperature
0 C to + 105 C
Mounting Style
SMD/SMT
Package / Case
MAPBGA-473

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PCI Express
10.2.4.1
SD_REF_CLK/SD_REF_CLK are not intended to be used with, and should not be clocked by, a spread
spectrum clock source.
10.3
This figure shows the reference circuits for SerDes data lane’s transmitter and receiver.
The DC and AC specification of SerDes data lanes are defined in
Note that external AC coupling capacitor is required for the PCI Express serial transmission protocol with
the capacitor value defined in specification of PCI Express protocol section.
11 PCI Express
This section describes the DC and AC electrical specifications for the PCI Express bus.
11.1
For more information, see
11.2
This table lists the PCI Express SerDes clock AC requirements.
34
Symbol
t
t
REFCJ
REFPJ
t
REF
SerDes Transmitter and Receiver Reference Circuits
DC Requirements for PCI Express SD_REF_CLK and
SD_REF_CLK
AC Requirements for PCI Express SerDes Clocks
REFCLK cycle time (for 125 MHz and 100 MHz)
REFCLK cycle-to-cycle jitter. Difference in the period
of any two adjacent REFCLK cycles.
Phase jitter. Deviation in edge location with respect to
mean edge location.
Spread Spectrum Clock
Transmitter
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 3
Figure 26. SerDes Transmitter and Receiver Reference Circuits
Table 33. SD_REF_CLK and SD_REF_CLK AC Requirements
Parameter Description
Section 10.2, “SerDes Reference Clocks.”
50 
50 
TXn
TXn
RXn
RXn
Min
–50
8
Section 11, “PCI Express.”
Typ
10
50 
50 
Receiver
Max
100
50
Freescale Semiconductor
Units
ns
ps
ps
Notes

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