Communications controller board

Details Communications controller board Communications controller board

G - Physics

06

F

354/230.85

G06F 13/26 (2006.01) G06F 13/24 (2006.01)

Patent

CA 1218465

-- 11 -- COMMUNICATIONS CONTROLLER BOARD ABSTRACT OF THE DISCLOSURE A communications and controller board utilizes a dual channel universal asynchronous receiver/transmitter in combination with a vector interrupt controller and a priority chain control for permitting vector interrupt and priority chain interrupt of a central processing unit by a plurality of input or output units. Proper priority is preserved both according to vector interrupt and priority chain interrupt schemes. RS-422 drivers and or receivers are connected to the dual channel universal synchronous receiver/transmitter for the driving thereof as are data bus lines. -- 11 --

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