Broadcom Corporation

Himakiran Kodihalli

Amar Guettaf

Sandeep Bhatia

Gaurav Aggarwal

Vijayanand Aralaguppe

Chhavi Kishore

Bhaskar Mala Sherigar

Manoj Vajhallya

Ramadas Lakshmikanth Pai

Sivagururaman Mahadevan

A system, method, and apparatus for controlling tri-state drivers are presented herein. During scan testing, a decoder controls the tri-state drivers and prevents more than one tri-state driver from driving a shared resource, regardless of the test patterns shifted into the scan chain. During functional mode, the tri-state drivers are driven by functional enables.

Control of tristate buses during scan test

Presented herein is a direct memory access engine for providing data words in the reverse order. The data words are fetched in batches comprising a predetermined number of data words starting from the last data word and proceeding to the first data word. The batches are stored in a local buffer. The contents of the local buffer are transmitted in reverse order.

DMA engine for fetching words in reverse order

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Bengaluru, India

Himakiran Kodihalli