High speed on-chip serial link apparatus and method

Details High speed on-chip serial link apparatus and method High speed on-chip serial link apparatus and method

2008-09-30

2008-09-30

Shin, Christopher (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral adapting

C710S305000, C713S400000

Reexamination Certificate

active

11242676

ABSTRACT:
A converter apparatus and method are provided that transforms an external low speed industry standard interface into an on-chip high speed serial link (HSSL). The converter of the present invention is preferably placed in close vicinity of the external interface. The HSSL operates at the system clock speed and, as a result, the HSSL interface signals can be readily treated like any other timed signal facilitating the physical design process. Because synchronization is performed once in the converter near the external interface and the signals along the HSSL of the present invention may be treated like any other timed signal, the need for interface units in each processing element of the chip to perform synchronization is eliminated. Thus, the complexity and silicon area used by the present invention is reduced. The converter enables the maximum speed for the serial interface, which is crucial in power-on-reset, manufacturing testing, and chip debugging.

REFERENCES:
patent: 5864309 (1999-01-01), Hung
patent: 6480512 (2002-11-01), Ahn
patent: 6993671 (2006-01-01), Pricer et al.
patent: 7124334 (2006-10-01), Kashiwakura
patent: 7200767 (2007-04-01), Jonnalagadda

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