Seong Woon Kim

Internet Protocol Engine in TCP/IP Offloading Engine

As the network works in high speed, TCP/IP protocol loads on the host CPU. Recently, TOE (TCP/IP Offload Engine) which processes TCP/IP on a network adapter instead of host CPU is rising up to the network market to solve the CPU burden. This paper is the design of TCP/IP offloading Engine in lGbps network. Especially, our engine is fully offloaded for TCP/IP using two embedded processor and Internet protocol also designed in hardware circuit level. In this paper, we show the hardware design of the Internet protocol and the role of IP in TOE. The manufactured chip can show the satisfaction for high speed network over lGbps.

Fine-grained power gating of datapath using FSM

As a fine-grained power gating method for achieving greater power savings, our approach takes advantage of the finite state machine with a datapath (FSMD) characteristic which shows sequential idleness among subcircuits. In an FSMD-based power gating, while only an active subcircuit is expected to be turned on, more subcircuits should be activated due to the power overhead. To reduce the number of missed opportunities for power savings, we deactivated some of the turned-on subcircuits by slowing the FSMD down and predicting its behavior. Our microprocessor experiments showed that the power savings are close to the upper bound.