9100 datasheet(21/108 Pages) INTEL

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Dual-Core Intel® Itanium® Processor 9000 and 9100 Series Datasheet

Electrical Specifications

Trise

BCLKp Rise Time7

All

333

500

667

Figure 2-1

20–80%

Tfall

BCLKp Fall Time7

All

333

500

667

Figure 2-1

20–80%

VPP

Minimum Input Swing

All

600

Figure 2-1

Notes:

1. The system clock skew is ±100 ps.

2. Measured on cross-point of rising edge of BCLKp and falling edge of BCLKn. Long-term jitter is defined as peak-to-peak variation

measured by accumulating a large number of clock cycles and recording peak-to-peak jitter.

3. Cycle-to-cycle jitter is defined as peak-to-peak variation measured over 10,000 cycles peak-to-peak jitter.

4. Measured on cross point of rising edge of BCLKp and falling edge of BCLKn.

5. The system clock skew is ±60 ps.

6. VPPmin is defined as the minimum input differential voltage which will cause no increase in the clock receiver timing.

7. The measurement is taken at 40-60% of the signal and extrapolated to 20-80%.

Table 2-11. SMBus AC Specifications

Symbol

Parameter

Minimum

Maximum

Unit

Notes

fSMSC

SMSC Clock Frequency

100

kHz

TSMSC

SMSC Clock Period

µs

thigh

SMSC Clock High Time

4.0

µs

Notes:

1. Please refer to Figure 2-2 for the Standard Microsystems Corporation (SMSC)* clock waveform.

tlow

SMSC Clock Low Time

4.7

µs

trise

SMSC Clock Rise Time

1.0

µs

tfall

SMSC Clock Fall Time

0.3

µs

tVALID

SMBus Output Valid Delay

1.0

µs

tSU

SMBus Input Setup Time

250

tHLD

SMBus Input Hold Time

tFREE

Bus Free Time

4.7

µs

2. Bus Free Time is the minimum time allowed between request cycles.

Figure 2-1. Generic Clock Waveform

000615

Table 2-10.System Bus Clock Differential HSTL AC Specifications (Sheet 2 of 2)

Symbol

Parameter

System

Bus

Clock

(MHz)

Minimum

Typ

Maximum

Unit

Figure

Notes

80%

Trise

Rise Time

Tfall

Fall Time

High Time

Thigh

Low Time

Tlow

20%

Tfall

Thigh

Tlow

Tperiod

Tjitter

BCLKN

BCLKP

Vpp

Tperiod

Period

Tjitter

Long Term Peak-to-Peak Jitter

Peak-to-Peak Swing

Vpp

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