Programmable multiple I/O interface controller

Details Programmable multiple I/O interface controller Programmable multiple I/O interface controller

1991-05-10

1994-02-22

Richardson, Robert L.

G06F 1300

Patent

active

052895807

ABSTRACT:
An I/O interface controller is disclosed which can be programmed to interact with a variety of interface protocols. The host side and the peripheral side of the interface controller are independently programmable. All significant operations are performed in a single chip gate array. The gate array includes registers for establishing control with peripheral devices and for transferring data between peripheral devices and the host. An arithmetic logic unit is used for calculation and data manipulation while an I/O operation is occurring. A condition code multiplexer evaluates the contents of registers within the single chip and instructs the sequencer to perform various operations based on these results. Strobe signals from a peripheral device, indicating that valid data is ready to be transferred, are quickly acknowledged by virtue of an asynchronous signal path. The strobe signal is also processed so that it may correspond with the internal clock of the I/O interface. An asynchronous event driver and recognizer mechanism is also disclosed. This mechanism enable the I/O interface controller to drive the host side and the peripheral side interfaces simultaneously.

REFERENCES:
patent: 4641263 (1987-02-01), Perlman et al.
patent: 4707803 (1987-11-01), Anthony, Jr. et al.
patent: 4782461 (1988-11-01), Mick et al.
patent: 4787028 (1988-11-01), Finfrock et al.
patent: 4802116 (1989-01-01), Ward et al.
patent: 4855905 (1989-08-01), Estrada et al.
patent: 4964074 (1990-10-01), Suzuki et al.

Affiliated with

Also associated with

Rating

Programmable multiple I/O interface controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Programmable multiple I/O interface controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Programmable multiple I/O interface controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-178503