MPC8540CPX667JC datasheet(58/104 Pages) FREESCALE

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MPC8540 Integrated Processor Hardware Specifications, Rev. 4

Freescale Semiconductor

RapidIO

Figure 36. Example Compliance Mask

Y = minimum data valid amplitude

Z = maximum amplitude

1 UI = 1 unit interval = 1/baud rate

X1 = end of zero crossing region

X2 = beginning of data valid window

DV = data valid window = 1 – 2

× X2

The waveform of the signal under test must fall within the unshaded area of the mask to be compliant.

Different masks are used for the driver output and the receiver input allowing each to be separately

specified.

13.3.1 RapidIO Driver AC Timing Specifications

Driver AC timing specifications are provided in Table 47, Table 48, and Table 49. A driver shall comply

with the specifications for each data rate/frequency for which operation of the driver is specified. Unless

otherwise specified, these specifications are subject to the following conditions.

•

The specifications apply over the supply voltage and ambient temperature ranges specified by the

device vendor.

•

The specifications apply for any combination of data patterns on the data signals.

•

The output of a driver shall be connected to a 100

Ω, ±1%, differential (bridged) resistive load.

•

Clock specifications apply only to clock signals.

•

Data specifications apply only to data signals (FRAME, D[0:7]).

Table 47. RapidIO Driver AC Timing Specifications—500 Mbps Data Rate

Characteristic

Symbol

Range

Unit

Notes

Min

Max

Differential output high voltage

VOHD

200

540

Differential output low voltage

VOLD

–540

–200

–Y

–Z

1–X2

Time (UI)

1–X1

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