Boots – shoes – and leggings
Patent
1975-10-30
1978-01-31
Springborn, Harvey E.
Boots, shoes, and leggings
340147R, 179 15BA, G06F 300, H04J 300
Patent
active
040718875
ABSTRACT:
An integrated circuit synchronous data adaptor (SSDA) provides a bidirectional interface for synchronous data interchange. Internal control and interface logic including first-in-first-out (FIFO) buffer memory enables simultaneous transmitting and receiving of standard synchronous communication characters to allow data transfer between serial data channels and the parallel bidirectional data bus of a bus organized system such as a microprocessor (MPU) system. Parallel data from the bus system is serially transmitted and received by the SSDA with synchronization character insertion and deletion, fill character insertion and deletion, parity generation and error checking. The functional configuration of the SSDA is programmed via the MPU system data bus during system initialization and can be reconfigured via program control during subsequent system operation. Programmable control registers provide control for variable word lengths, transmit control, receive control, synchronization control, and interrupt control. Status, timing and control lines provide peripheral unit or modem control.
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Daly Thomas C.
Hepworth Edward C.
Means Rodney J.
Barbee Joe E.
Motorola Inc.
Springborn Harvey E.
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