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参数资料
型号： MPC8572CPXAUNB
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 32-BIT, 1333 MHz, MICROPROCESSOR, PBGA1023
封装： 33 X 33 MM, PLASTIC, FCBGA-1023
文件页数： 122/138页
文件大小： 1502K
代理商： MPC8572CPXAUNB
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
84
Freescale Semiconductor
PCI Express
TTX-EYE-MEDIAN-to-
MAX-JITTER
Maximum time
between the jitter
median and
maximum
deviation from
the median.
—
0.15
UI
Jitter is defined as the measurement variation of the
crossing points (VTX-DIFFp-p = 0 V) in relation to a
recovered TX UI. A recovered TX UI is calculated
over 3500 consecutive unit intervals of sample
data. Jitter is measured using all edges of the 250
consecutive UI in the center of the 3500 UI used for
calculating the TX UI. See Notes 2 and 3.
TTX-RISE, TTX-FALL
D+/D- TX Output
Rise/Fall Time
0.125
—
UI
See Notes 2 and 5
VTX-CM-ACp
RMS AC Peak
Common Mode
Output Voltage
——
20
mV
VTX-CM-ACp = RMS(|VTXD+ + VTXD-|/2 - VTX-CM-DC)
VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2
See Note 2
VTX-CM-DC-ACTIVE-
IDLE-DELTA
Absolute Delta of
DC Common
Mode Voltage
During L0 and
Electrical Idle
0—
100
mV
|VTX-CM-DC (during L0) - VTX-CM-Idle-DC (During Electrical
Idle)|<=100 mV
VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2 [L0]
VTX-CM-Idle-DC = DC(avg) of |VTX-D+ + VTX-D-|/2
[Electrical Idle]
See Note 2.
VTX-CM-DC-LINE-DELTA Absolute Delta of
DC Common
Mode between
D+ and D–
0—
25
mV
|VTX-CM-DC-D+ - VTX-CM-DC-D-| <= 25 mV
VTX-CM-DC-D+ = DC(avg) of |VTX-D+|
VTX-CM-DC-D- = DC(avg) of |VTX-D-|
See Note 2.
VTX-IDLE-DIFFp
Electrical Idle
differential Peak
Output Voltage
0—
20
mV
VTX-IDLE-DIFFp = |VTX-IDLE-D+ -VTX-IDLE-D-| <= 20
mV
See Note 2.
VTX-RCV-DETECT
The amount of
voltage change
allowed during
Receiver
Detection
—
600
mV
The total amount of voltage change that a
transmitter can apply to sense whether a low
impedance Receiver is present. See Note 6.
VTX-DC-CM
The TX DC
Common Mode
Voltage
0
—
3.6
V
The allowed DC Common Mode voltage under any
conditions. See Note 6.
ITX-SHORT
TX Short Circuit
Current Limit
—
90
mA
The total current the Transmitter can provide when
shorted to its ground
TTX-IDLE-MIN
Minimum time
spent in
Electrical Idle
50
—
UI
Minimum time a Transmitter must be in Electrical
Idle Utilized by the Receiver to start looking for an
Electrical Idle Exit after successfully receiving an
Electrical Idle ordered set
TTX-IDLE-SET-TO-IDLE
Maximum time to
transition to a
valid Electrical
idle after sending
an Electrical Idle
ordered set
—
20
UI
After sending an Electrical Idle ordered set, the
Transmitter must meet all Electrical Idle
Specifications within this time. This is considered a
debounce time for the Transmitter to meet
Electrical Idle after transitioning from L0.
Table 59. Differential Transmitter (TX) Output Specifications (continued)
Symbol
Parameter
Min
Nominal
Max
Units
Comments
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