Boots – shoes – and leggings
Patent
1987-08-05
1990-12-04
Zache, Raulfe B.
Boots, shoes, and leggings
3642285, G06F 300
Patent
active
049758284
ABSTRACT:
This invention provides a flexible, general-purpose, engine-based architecture for a multi-channel data communications controller. It can be customized to handle a wide range of protocols and other host system requirements with minimal reliance on the host's processing power. The always present time-critical tasks of transmitting and receiving serial data, as well as transmitting and receiving characters to/from the host, are handled quickly and efficiently by utilizing dedicated interface processors. This leaves the general purpose main engine less burdened with these time cricital tasks, enabling it to perform the relatively more complex (though less time critical) tasks of assembling and disassembling characters, as well as maintaining RAM-based data FIFOs and performing error-checking and other protocol-related tasks. Custon protocols can be implemented merely by re-microcoding the machine, without requiring modifications to the basic architecture of the chip, substantially reducing design time. The flexibility of this general purpose architecture enables controllers to be more customized to a particular user's requirements, resulting not only in faster performance by the controller itself, but also in far less reliance on the host's processing power. What could previously only be done by the host in software can now be done by the controller itself much more quickly.
REFERENCES:
patent: 4012718 (1977-03-01), Young et al.
patent: 4336588 (1982-06-01), Vernon et al.
National semiconductor, INS8250-B Asynchronous Communications Element, May 1980, pp. 1 through 16.
National Semiconductor, NS1645/INS8250A/NS16C450/INS82C50A Asynchronous Communications Element, Feb. 1985, pp. 1-18.
National semiconductor, NS16550 Asynchronous Communications Element with FIFOs, Feb. 1986, pp. 1 through 20.
Signetics, SCN2651 Programmable Communications interface, Jan. 1983, pp. 1-1 through 1-14.
Signetics, SCN2652/SCN68652 Multi-Protocol Communications Controller, Jan. 1983, pp. 1-15 through 1-32.
Signetics, SCN2661/68661 Enhanced Programmable Communications Interface, Jan. 1983, pp. 1-51 through 1-67.
Signetics, SCN2681 Serial Dual Asynchronous Receiver/Transmitter (DUART), Jan. 1983, pp. 1-through 681-85.
Signetics, SCC2698 Octal Universal Asynchronous Receiver/Transmitter (Octal-UART), Apr. 1986, pp. 1-19.
Intel 8273, 8273-4, 8273-8 Programmable HDLC/SDLC Protocol Controller, 1979, pp. 1-137 through 1-161.
Acharya Shrikant
Hedayat Shahin
Kaplinsky Cecil
O'Toole Anthony
Wishneusky John
Cirrus Logic Inc.
Zache Raulfe B.
LandOfFree
Multi-channel data communications controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-channel data communications controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel data communications controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-887001