GENERAL DESCRIPTION
The functions performed by the device include serializing the 8B/10B 10-bit data for transmission, deserializing received code groups, recovering the clock from the incoming data stream, and word synchronization. When transmitting, the GigaPHY-SD device receives 10-bit 8B/10B code groups at 125 million code groups per second. It then serializes the parallel data stream, adding a reference clock, and transmits it through the PECL drivers. When receiving, the GigaPHY-SD device receives the PECL data stream from the network. It then recovers the clock from the data stream, deserializes the data stream into a 10-bit code group, and transmits it to the Physical Coding Sublayer (PCS) logic above. Optionally, it detects comma characters used to align the incoming word. This document contains information on a product under development at Advanced Micro Devices. The information is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed product without notice.
Advanced Micro Devices
