Intel BX80569Q9550 - Core 2 Quad 2.83 GHz Processor Datasheet page 33

Electrical Specifications
The transfer rates available for the processor are shown in
receiver parameters for Intel
Table 2-8
®
Table 2-7. Intel Itanium
Intel
Forwarded Clock Frequency
Notes:
1. This speed is the 1/4 SysClk Frequency.
The applicability of this section applies to Intel
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.
Specifications for link speed independent specifications are called out in
Electrical specifications for Transmit and Receive for 4.8 GT/s are captured in
and for 6.4 GT/s are captured in
®
Table 2-8. Intel Itanium
(Sheet 1 of 2)
Symbol
UIavg
T
slew-rise-fall-pin
ΔZ
TX_LOW_CM_DC
ΔZ
RX_LOW_CM_DC
N
MIN-UI-Validation
Z
TX_HIGH_CM_DC
Z
RX_HIGH_CM_DC
® ®
Intel Itanium Processor 9300 Series and 9500 Series Datasheet
®
QPI slow mode, Intel
and Table 2-9 respectively.
®
Processor 9500 Series Clock Frequency Table
®
QuickPath Interconnect
33.33 MHz
2.40 GHz
3.2 GHz
®
Processor 9500 Series Link Speed Independent Specifications
Parameter
Average UI size at "G"
GT/s (Where G = 4.8,
6.4, and so on)
Defined as the slope of
the rising or falling
waveform as measured
between ±100mV of the
differential transmitter
output, for any data or
clock
Defined as:
(max(Z
TX_LOW_CM_DC
min(Z )) /
TX_LOW_CM_DC
Z expressed
TX_LOW_CM_DC
in %, over full range of Tx
single ended voltage
Defined as:
(max(Z
TX_LOW_CM_DC
min(Z )) /
TX_LOW_CM_DC
Z expressed
TX_LOW_CM_DC
in %, over full range of Tx
single ended voltage
# of UI over which the
eye mask voltage and
timing spec needs to be
validated
Single ended DC
impedance to GND for
either D+ or D- of any
data bit at Tx
Single ended DC
impedance to GND for
either D+ or D- of any
data bit at Rx
®
QPI and Intel
®
Intel QuickPath Interconnect Data
Transfer Rate
66.66 MT/s (see note 1)
4.8 GT/s
6.4 GT/s
® QPI for the Intel
Table 2-10.
Min Nom
0.999 * 1000/G
nominal
9
-6
) -
-6 0
) -
1,000,000
4k
4k
Table 2-7. Transmitter and
®
SMI are shown in
® Itanium ® Processor
Table 2-8.
Table 2-9
Max Unit
1.001 * psec
nominal
20 V/nsec
6 % of
Z
TX_LOW_CM_DC
6 % of
Z
TX_LOW_CM_DC
Ω
Ω
Notes
1
33