Microprogrammed programmable controller

Details Microprogrammed programmable controller Microprogrammed programmable controller

1979-04-02

1981-05-05

Chapnick, Melvin B.

Boots, shoes, and leggings

364104, G06F 922, G06F 1300, G05B 1101

Patent

active

042662818

ABSTRACT:
A programmable controller includes a processor formed around a pair of four-bit bipolar microprocessors. A control program formed by selected macroinstructions is stored in a random access memory and it is executed by sequentially mapping each macroinstruction operation code into a corresponding microroutine which is stored in a read-only memory. Some macroinstructions include operand addresses of a line in an I/O image and data table portion of the random access memory, and one macroinstruction (ADX) expands this operand address to enable the I/O image and data table to be expanded in size. A timer macroinstruction is executed in part by reading the state of a counter which is driven by a real time clock, and arithmetic functions are performed with the use of a decimal adjust accumulator.

REFERENCES:
patent: 3806877 (1974-04-01), Kiffmeyer et al.
patent: 3942158 (1976-03-01), Dummermuth
patent: 4038533 (1977-07-01), Dummermuth et al.
patent: 4078259 (1978-03-01), Soulsby et al.
patent: 4107785 (1978-08-01), Seipp
patent: 4118792 (1978-10-01), Struger et al.
patent: 4142246 (1979-02-01), Fumihiko et al.
patent: 4178634 (1979-12-01), Bartlett

Affiliated with

Also associated with

Rating

Microprogrammed programmable 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 Microprogrammed programmable controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microprogrammed programmable controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-299093