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64 Datasheet

Intel

Celeron

Processor up to 1.10 GHz

3.5 Non-AGTL+ Signal Quality Specifications and Measurement

Guidelines

There are three signal quality parameters defined for non-AGTL+ signals: overshoot/undershoot,

ringback, and settling limit. All three signal quality parameters are shown in Figure 16 for the non-

AGTL+ signal group.

NOTES:

1. V

= 1.5 V for all non-AGTL+ signals except for BCLK, PICCLK, and PWRGOOD. V

= 2.5 V for BCLK,

PICCLK, and PWRGOOD. BCLK and PICCLK signal quality is detailed in Section 3.1.

Figure 16. Non-AGTL+ Overshoot/Undershoot, Settling Limit, and Ringback

Undershoot

Overshoot

Settling Limit

Rising-Edge

Ringback

Falling-Edge

Ringback

Time

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 127 128

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