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Intel Itanium Processor 9300 Series and 9500 Series

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Electrical Specifications<br />

Table 2-2. Signal Groups (Sheet 3 of 3)<br />

Signal Group Buffer Type Signals 1, 2, 3<br />

Debug<br />

Single-ended<br />

Power Supplies<br />

GTL I/O<br />

GTL Input<br />

GTL Output<br />

XDPOCPD_N[7:0],TRIGGER_N[1:0]<br />

XDPOCPFRAME_N<br />

XDPOCP_STRB_IN_N, PRBMODE_REQST_N<br />

XDPOCP_STRB_OUT_N, PRBMODE_RDY_N<br />

Core V CCCORE<br />

4<br />

Uncore V CCUNCORE<br />

4<br />

Cache (<strong>Intel</strong> ® <strong>Itanium</strong> ®<br />

<strong>Processor</strong> <strong>9300</strong> <strong>Series</strong>)<br />

Analog<br />

I/O<br />

St<strong>and</strong>-by<br />

V 4<br />

CCCACHE<br />

V CCA<br />

V CCIO<br />

V CC33_SM<br />

V CC33_SM Pins<br />

PIROM<br />

Input<br />

I/O<br />

Input<br />

Input<br />

Input<br />

PIR_SCL<br />

PIR_SDA<br />

PIR_A0<br />

PIR_A1<br />

SM_WP<br />

Notes:<br />

1. CMOS signals have a reference voltage (Vref) equal to VCCIO/2.<br />

2. GTL signals have a reference voltage (Vref) equal to VCCIO*(2/3).<br />

3. All single-ended buffer types, including inputs, outputs <strong>and</strong> input/outputs, include an on-die pull up resistor<br />

between 4 kOhms <strong>and</strong> 8.7 kOhms. Recommended values for external pull-downs on the inputs <strong>and</strong> input/<br />

output signals must meet the V il specification for that buffer.<br />

2.3 Reference Clocking Specifications<br />

The processor has one input reference clock, SYSCLK/SYSCLK_N for the <strong>Intel</strong> ® QPI<br />

interface. The processor timing specified in this section is defined at the processor pins<br />

unless otherwise noted.<br />

Table 2-3.<br />

<strong>Intel</strong> ® QuickPath Interconnect/<strong>Intel</strong> ® Scalable Memory Interconnect<br />

Reference Clock Specifications (Sheet 1 of 2)<br />

Symbol Parameter Min Nom Max Units Notes<br />

fsysclk (ssc-off) System clock frequency 133.31 133.33 133.34 MHz<br />

Fsyclk (scc-on) System clock frequency 132.62 132.99 133.37 MHz<br />

ER sysclk-diff-Rise,<br />

ER sysclk-diff-Fall<br />

Differential Rising <strong>and</strong> Falling Edge<br />

Rates<br />

1.0 4.0 V/ns 3,4<br />

T sysclk_dutycycle Duty cycle of Reference clock 40 60 % period 3<br />

C i-CK Clock Input Capacitance 0.5 2.0 pf<br />

VH Differential High Input Voltage 0.15 V 3<br />

VL Differential Low Input Voltage -0.15 V 3<br />

V Cross Absolute crossing point 0.25 0.35 0.55 V 1, 5, 6<br />

V Cross_delta Peak-peak variation 140 mv 1, 5, 7<br />

V RB-Diff<br />

Differential Ringback voltage<br />

threshold<br />

-100 100 mV 3, 10<br />

26 <strong>Intel</strong> ® <strong>Itanium</strong> ® <strong>Processor</strong> <strong>9300</strong> <strong>Series</strong> <strong>and</strong> <strong>9500</strong> <strong>Series</strong> Datasheet

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