mpc8314e Freescale Semiconductor, Inc, mpc8314e Datasheet - Page 63

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

Freescale Semiconductor
Minimum time spent in
electrical idle
Maximum time to
transition to a valid
electrical idle after
sending an electrical idle
ordered set
Maximum time to
transition to valid TX
specifications after leaving
an electrical idle condition
Differential return loss
Common mode return
loss
DC differential TX
impedance
Transmitter DC
impedance
Lane-to-Lane output skew
AC coupling capacitor
Parameter
Table 54. Differential Transmitter (TX) Output Specifications (continued)
MPC8314E PowerQUICC
T
T
TX-IDLE-TO-DIFF-DATA
TX-IDLE-SET-TO-IDLE
T
Z
RL
TX-IDLE-MIN
L
TX-DIFF-DC
RL
Symbol
TX-SKEW
Z
TX-DIFF
TX-DC
C
TX-CM
TX
™
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
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.
Maximum time to meet all TX
specifications when
transitioning from Electrical
Idle to sending differential
data. This is considered a
debounce time for the TX to
meet all TX specifications
after leaving Electrical Idle
Measured over 50 MHz to
1.25 GHz.
Measured over 50 MHz to
1.25 GHz.
TX DC Differential mode Low
Impedance
Required TX D+ as well as D-
DC Impedance during all
states
Static skew between any two
Transmitter Lanes within a
single Link
All Transmitters shall be AC
coupled. The AC coupling is
required either within the
media or within the
transmitting component itself.
II Pro Processor Hardware Specifications, Rev. 0
Comments
Min
50
12
80
40
75
—
—
—
6
Typical
100
—
—
—
—
—
—
—
—
500 + 2
Max
120
200
—
20
20
—
—
—
UI
Units
dB
dB
nF
UI
UI
UI
ps
Ω
Ω
PCI Express
Notes
—
—
—
—
—
—
4
4
8
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