Datasheet

Electrical Specifications
32 Intel
®
Itanium
®
Processor 9300 Series and 9500 Series Datasheet
2.4.2 Intel
®
Itanium
®
Processor 9500 Series Requirements for
Intel
®
QuickPath Interconnect for 4.8 and 6.4 GT/s
The applicability of this section applies to Intel
®
Itanium
®
Processor 9500 Series. This
section contains information for slow boot up speed (1/4 frequency of the reference
clock), 4.8 GT/s, and 6.4 GT/s, for Intel
®
QPI and Intel
®
SMI.
For Intel
®
QPI slow boot up speed, the signaling rate is defined as 1/4 the rate of the
system reference clock. For example, a 133 MHz system reference clock would have a
forwarded clock frequency of 33.33 MHz and the signaling rate would be 66.67 MT/s.
Figure 2-7. TX Return Loss
Figure 2-8. RX Return Loss