MPC8308-RDB Freescale Semiconductor, MPC8308-RDB Datasheet - Page 38

• Manufacturer Part Number: MPC8308-RDB
• Description: BOARD REF DESIGN MPC8308
• Manufacturer: Freescale Semiconductor
• Series: PowerQUICC II™ PROr
• Type: MPUr

Specifications of MPC8308-RDB

• Contents: Board, Cables, Documentation, Power Supply, Software
• Ethernet Connection Type: Serial to Ethernet
• Data Rate: 10 Mbps, 100 Mbps, 1000 Mbps
• Memory Type: DDR2, SDRAM
• Interface Type: HSSI
• Operating Voltage: 1.5 V
• Operating Current: 5 uA
• Maximum Power Dissipation: 1000 mW
• Operating Temperature Range: - 55 C to + 125 C
• Product: Modules
• For Use With/related Products: MPC8308
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PCI Express
38
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 34. Differential Transmitter (TX) Output Specifications (continued)
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 2
T
T
TX-IDLE-TO-DIFF-
TX-IDLE-SET-TO-I
Z
RL
L
TX-DIFF-DC
RL
Symbol
Z
TX-SKEW
DATA
TX-DIFF
TX-DC
C
DLE
TX-CM
TX
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. An
external capacitor of
100nF is recommended.
Comments
Min
12
80
40
75
—
—
—
6
Typical
100
—
—
—
—
—
—
—
500 + 2
Max
120
200
20
20
—
—
—
UI
Freescale Semiconductor
Units
dB
dB
nF
UI
UI
ps
Ω
Ω
Notes
—
—
—
—
—
—
4
4