MPC8640DEC datasheet(74/140 Pages) FREESCALE

部件名	MPC8640DEC

功能描述	Integrated Host Processor Hardware Specifications

PDF	140 Pages

Scroll/Zoom	100%

制造商	FREESCALE [Freescale Semiconductor, Inc]

网页	http://www.freescale.com

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MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 1

Freescale Semiconductor

PCI Express

Figure 50. Minimum Transmitter Timing and Voltage Output Compliance Specifications

14.4.3

Differential Receiver (RX) Input Specifications

Table 49 defines the specifications for the differential input at all receivers (RXs). The parameters are

specified at the component pins.

Table 49. Differential Receiver (RX) Input Specifications

Symbol

Parameter

Min

Nom

Max

Units

Comments

Unit Interval

399.8

400

400.12

Each UI is 400 ps ± 300 ppm. UI does not

account for Spread Spectrum Clock dictated

variations. See Note 1.

VRX-DIFFp-p

Differential

Peak-to-Peak

Output Voltage

0.175

1.200

VRX-DIFFp-p = 2*|VRX-D+ - VRX-D-|

See Note 2.

TRX-EYE

Minimum

Receiver Eye

Width

0.4

The maximum interconnect media and

Transmitter jitter that can be tolerated by the

Receiver can be derived as TRX-MAX-JITTER =

1 - TRX-EYE= 0.6 UI.

See Notes 2 and 3.

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