Signal Descriptions
44
Datasheet, Volume 1
6.3
DMI2 / PCI Express* Port 0 Signals
6.4
Platform Environment Control Interface (PECI)
Signal
6.5
System Reference Clock Signals
Table 6-6.
PCI Express* Miscellaneous Signals
Signal Name
Description
PE_RBIAS
This input is used to control PCI Express* bias currents. A 50 ohm 1%
tolerance resistor must be connected from this land to V
SS
by the platform.
PE_RBIAS is required to be connected as if the link is being used even when
PCIe* is not used.
PE_RBIAS_SENSE
Provides dedicated bias resistor sensing to minimize the voltage drop caused
by packaging and platform effects. PE_RBIAS_SENSE is required to be
connected as if the link is being used even when PCIe* is not used.
PE_VREF_CAP
PCI Express* voltage reference used to measure the actual output voltage
and comparing it to the assumed voltage. A 0.01 uF capacitor must be
connected from this land to V
SS
.
Table 6-7.
DMI2 to Port 0 Signals
Signal Name
Description
DMI_RX_DN[3:0]
DMI_RX_DP[3:0]
DMI2 Receive Data Input
DMI_TX_DP[3:0]
DMI_TX_DN[3:0]
DMI2 Transmit Data Output
Table 6-8.
PECI Signals
Signal Name
Description
PECI
PECI (Platform Environment Control Interface) is the serial sideband interface
to the processor and is used primarily for thermal, power and error
management.
Table 6-9.
System Reference Clock (BCLK{0/1}) Signals
Signal Name
Description
BCLK{0/1}_D[N/P]
Reference Clock Differential input. These pins provide the PLL reference clock
differential input into the processor.
Содержание BX80619I73960X
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