Boots – shoes – and leggings
Patent
1992-06-15
1995-04-04
Bowler, Alyssa H.
Boots, shoes, and leggings
3642295, 3642305, 3642314, 3642378, 3642379, 3642397, 3642401, 3642705, 3642709, 3642749, 3642766, 364DIG1, 364DIG2, 395 21, G06F 305, G06F 1322, G06F 1320, G06F 1542
Patent
active
054045568
ABSTRACT:
An apparatus for carrying out asynchronous communication among integrated circuits for inter-chip communications includes a plurality of senders disposed on an integrated circuit. Each is associated with send-initiate circuitry to indicate a request to send the occurrence of an event. The occurrence of an event causes the sender to transition from a no-event-occurred state to an event-occurred state. An address-generating circuit for generating a unique address is associated with each sender. The send-initiate circuitry of each sender is connected to an arbiter circuit. The arbiter circuit resolves simultaneous requests to send by more than one sender and provides a send-enable signal to the winning contending sender. The send-enable signal resets the selected sender to its no-event-occurred state. The send-enable signal causes the address-generating circuit associated with the winning contending sender to generate the address of that sender and place it on an output bus along with an output-enable signal. An acknowledge signal from a receiver resets the request-to-send signals from all send-initiate circuits. All other senders which reported an event and were not selected by the arbiter circuit remain in their event-occurred states. After the acknowledge signal, other pending events may be transmitted and the arbiter circuit again selects a sender from among any contenders.
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Mahowald Misha A.
Sivilotti Massimo A.
Bowler Alyssa H.
California Institute of Technology
Pan Daniel H.
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