Boots – shoes – and leggings
Patent
1996-12-13
1998-07-28
Coleman, Eric
Boots, shoes, and leggings
364488, 364489, G06F 108
Patent
active
057872732
ABSTRACT:
N separate identical finite state machines service N corresponding channels. In one embodiment, each channel operating at a clock frequency F is serviced by the same combinatorial logic block which runs at an N*F clock frequency. The channel inputs are delivered to the shared combinatorial logic block via an N-to-1 multiplexor. N separate output registers continuously provide output to the N separate channels. Each output register is loaded every Nth clock cycle. Although the combinatorial logic is shared amongst multiple machines, the state variables for each machine must be stored in a memory unit. In an embodiment of the memory unit, N separate state variable registers are loaded using the same load enable control signals as are used for the N output registers. The current state for the appropriate channel is selected by means of an N-to-1 multiplexor. An N-element shift register sequentially provides the appropriate channel's state variables to the shared combinatorial logic block. In the preferred embodiment of the memory unit, a dual-ported Random Access Memory (RAM) is used to efficiently aggregate the N channels' state variables. One port is dedicated to writing the next state while another port is dedicated to reading the current state. A read/write pointer is implemented as a counter which sequential counts from 0 to N-1 such that the dual-ported RAM behaves identically to a shift register. In another embodiment, the shared combinatorial logic is pipelined into as many as N separate combinatorial equals the number of channels N.
REFERENCES:
patent: 4740891 (1988-04-01), Kirkpatrick
patent: 5394557 (1995-02-01), Ellis
patent: 5640398 (1997-06-01), Carr et al.
patent: 5680594 (1997-10-01), Charneski et al.
Schaffner, Mario R., "A Computer Modeled After an Automaton," Computers and Automata, Polytechnic Press of the Polytechnic Institute of Brooklyn, New York, vol. XXI, Apr. 13-15, 1971, pp. 635-650.
Advanced Micro Devices , Inc.
Coleman Eric
Monestime Mackly
LandOfFree
Multiple parallel identical finite state machines which share co does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple parallel identical finite state machines which share co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple parallel identical finite state machines which share co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-31889