MPC5200 datasheet(26/80 Pages) FREESCALE

26 / 80 page

MPC5200 Data Sheet, Rev. 4

Electrical and Thermal Characteristics

Freescale Semiconductor

Figure 10. PCI CLK Waveform

NOTES:

1. In general, all 66-MHz PCI components must work with any clock frequency up to 66 MHz. CLK requirements vary

depending upon whether the clock frequency is above 33 MHz.

2. Rise and fall times are specified in terms of the edge rate measured in V/ns. This slew rate must be met across the minimum

peak-to-peak portion of the clock waveform as shown in Figure 10.

3. The minimum clock period must not be violated for any single clock cycle, i.e., accounting for all system jitter.

Table 22. PCI CLK Specifications

Sym

Description

66 MHz

33 MHz

Units

Notes

SpecID

Min

Max

Min

Max

Tcyc

PCI CLK Cycle Time

1,3

A6.1

Thigh

PCI CLK High Time

A6.2

tlow

PCI CLK Low Time

A6.3

PCI CLK Slew Rate

1.5

V/ns

A6.4

Tcyc

PCI CLK

Tlow

Thigh

0.4Vcc

0.4Vcc, p-to-p

0.3Vcc

0.5Vcc

0.6Vcc

0.2Vcc

(minimum)

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