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Using a JTAG in Linux Driver Debugging - page 19 / 48

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04/16/2008 - Copyright © 2008 The PTR Group Inc.

CELF-2008-SVC-19

Why the Traditional ICE has Faded Away

The biggest problem faced by the ICE concept was the increasing pin counts of processors

E.g., 939 pins for the Athlon-64

Each pin required a wire to the ICE

Each wire started to become an antenna as frequencies increased

Processors also started to move to Ball Grid Array (BGA) packages

No way to get to the pins in the center of the part because the part is soldered to the motherboard

Source: Intel

Source: AMD

Source: ESA

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