Transistor matrix shifter

Details Transistor matrix shifter Transistor matrix shifter

G - Physics

06

F

328/44

G06F 5/00 (2006.01) G06F 5/01 (2006.01)

Patent

CA 1298356

File 8332-193 Abstract TRANSISTOR MATRIX SHIFTER The present invention provides an expandable ECL matrix shifter which has very few interconnecting wires. The shifter can perform a multicolumn right shift or a multicolumn left shift in one cycle, and it has independent wrap and fill capabilities. Two 2 to 1 multiplexers are provided for each bit position of the input signals. The input signals provide one of the inputs for both of the multiplexers. The second input of each multiplexer is a signal indicating what type of fill is desired. The shifter has horizontal data input lines, vertical data output lines, and diagonal select lines. A bipolar transistor is located at each intersection of a data input line and a data output line. These transistors selectively connect the data input lines to the data output lines in response to signals on the diagonal select lines. Each horizontal data input line is divided into two parts. The division of the data input lines into parts is along a major diagonal of the matrix. The parts of the data input lines on one side of the major diagonal are activated by the output of one of the multiplexers, and the parts of the data input lines on the other side of the major diagonal are activated by the outputs of the second multiplexer.

588023

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