Interface circuit for interfacing a peripheral device with a mic

Details Interface circuit for interfacing a peripheral device with a mic Interface circuit for interfacing a peripheral device with a mic

1992-09-17

1994-08-16

Ray, Gopal C.

Multiplex communications

Wide area network

Packet switching

370 91, 3642329, 3642397, 3642474, 3642705, 364271, 3642601, 364DIG1, G06F 1314

Patent

active

053393953

ABSTRACT:
An interface circuit is described for interfacing a peripheral device and a microprocessor to enable data transference between a memory location within the peripheral device and a data bus of the microprocessor. In accordance with the type of bus control used by the microprocessor, the interface circuit is operated in either a synchronous mode or an asynchronous mode. The interface includes a state machine that responds to the mode of interface operation, a clock signal provided by the microprocessor, requests from the microprocessor to access an addressed peripheral memory location, and a busy signal from the peripheral device indicating when the peripheral is engaged in transferring data between the interface circuit and an addressed peripheral memory location. Preferably, the interface also operates to detect error conditions based on changes in the access request during data transference between the microprocessor and the peripheral device. In response to detecting an error condition, the state machine acts to interrupt data transference to avoid the transfer of invalid data.

REFERENCES:
patent: 3970997 (1976-07-01), Daly et al.
patent: 3972023 (1976-07-01), Bodner et al.
patent: 3999163 (1976-12-01), Levy et al.
patent: 4379327 (1983-04-01), Tietjen et al.
patent: 4435762 (1984-03-01), Milligan et al.
patent: 4615017 (1986-09-01), Finlay et al.
patent: 4631666 (1986-12-01), Harris et al.
patent: 4639861 (1987-01-01), Appiano et al.
patent: 4785469 (1988-11-01), Joshi et al.
patent: 4821172 (1989-04-01), Kaneko et al.
patent: 4941157 (1990-07-01), Taylor
patent: 5060134 (1991-10-01), Hunninghaus
patent: 5060138 (1991-10-01), Gephardt et al.
patent: 5060139 (1991-10-01), Theus
patent: 5150359 (1992-09-01), Wilson et al.
patent: 5208809 (1993-05-01), Fergeson et al.

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