G - Physics – 06 – F
Patent
G - Physics
06
F
354/231, 354/233
G06F 13/20 (2006.01) F02D 41/26 (2006.01) G06F 13/38 (2006.01) G06F 13/42 (2006.01) H04L 12/413 (2006.01)
Patent
CA 1278872
ABSTRACT OF THE DISCLOSURE The aim of the Chrysler Collision Detector (CCD) Bus System is to allow multiple microprocessors to easily communicate with each other over a common pair of wires (called a bus) using a scheme similar to a telephone party line. All microprocessors connected to the bus are able to receive all messages transmitted on the bus. Any microprocessor with a message to transmit on the bus waits untilany current user is finished before attempting to use it. Whenever the bus is available, its use is allocated on a first-come, first-serve basis (i.e., whichever microprocessor first begins transmitting its message on the bus after any previous message finishes gets the use of the bus). If, however, multiple microprocessorsattempt to begin transmitting their messages on the bus at exactly the same time, then the message with the highest priority wins the use of the bus. All messageshave unique message priority values and each message is transmitted by only one microprocessor. The subject invention provides the ability to communicate with aSCI port, a SPI port or a buffered SPI port. This allows communication with any device configured with any one of these ports, all on the same bus.
537663
Fassnacht Ronald E.
Mccambridge John M.
Miesterfeld Frederick O. R.
Nasiadka Jerry M.
Chrysler Motors Corporation
Macrae & Co.
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