Design of a CMOS token ring LAN controller, TRC, compatible with IEEE802.5 MAC protocol
Yaguchi, Fujimoto, Katsumata, Tanaka, Tamaru, Kanuma, Katagiri, Nishikawa, Shiraishi, Yamamoto, K Kimura, Terui, Hamai · 1989
Token ring has been increasing its importance among LAN (local area network) protocol as the need for deterministic response and low cost wirings continues to grow[1][2][3]. However, its complexity has caused multiple chip solutions for controllers, which are power and space consuming. Taking advantage of advanced CMOS circuits, we have newly developed a single chip high performance token ring controller(TRC). which is compatible with the IEEE802.5 standard MAC (media access control) protocol and suitable for low power equipment