Boots – shoes – and leggings
Patent
1980-09-15
1983-06-28
Ruggiero, Joseph F.
Boots, shoes, and leggings
364200, G06F 304, G06F 300
Patent
active
043909639
ABSTRACT:
A unique interface adapter is described which includes circuitry for recovering a clock signal and a non-return-to-zero (NRZ) data signal from a data signal transmitted on two forward data signals. The NRZ data signal is shifted into a receiving register, where address circuitry decodes the address portion of the data signal to provide a chip select signal and control circuitry decodes the control portion of the data signal to provide a register select signal, read/write signal and bus sense signal. The register select signal determines whether an output register or a data direction register is to be loaded in response to the read/write signal with the data portion of the data signal. The binary states of the data direction register determine which ones of the interface signals are to be output signals, and enable corresponding output register signals to be applied to the interface signals by way of transmission gates. While a data signal is being received on the forward data signals, the interface signals are loaded into a transmitting register and, in response to the chip select signal and clock signal, serially applied to a return data signal. The unique interface adapter may be advantageously utilized in any application where it is necessary to remotely control a plurality of interface lines with a minimum number of signal lines.
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Kasley Paul A.
Puhl Larry C.
Gillman James W.
Hackbart Rolland R.
Harkcom Gary V.
Motorola Inc.
Ruggiero Joseph F.
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