Multiplexer

Library

Branching

Description

Given $n$ vector valued inputs this block merges inputs in an single output vector. So $y=[u_1;u_2;\cdots;u_n]$ , where $u_i$ are numbered from top to bottom. Input and Output port sizes are determined by the context.

Dialog Box

Set MUX block parameters
number of input ports or vector of sizes	2

• number of input ports or vector of sizes:integer greater than or equal to 1 and less than 8.

Default properties

• always active: no
• direct-feedthrough: yes
• zero-crossing: no
• mode: no
• number/sizes of inputs: 2 / -1 -2
• number/sizes of outputs: 1 / 0
• number/sizes of activation inputs: 0 /
• number/sizes of activation outputs: 0 /
• continuous-time state: no
• discrete-time state: no
• name of computational function: multiplex

Interfacing function

scilab/macros/scicos_blocks/branching/MUX.sci

Computational function (type 4)

#include "scicos_block.h"
#include <math.h>

void multiplex(scicos_block *block,int flag)
{
  int i,j,k;
  if (block->nin==1){
    k=0;
    for (i=0;i<block->nout;++i){
      for (j=0;j<block->outsz[i];++j){
	block->outptr[i][j]=block->inptr[0][k];
	++k;
      }
    }
  }else {
    k=0;
    for (i=0;i<block->nin;++i){
      for (j=0;j<block->insz[i];++j){
	block->outptr[0][k]=block->inptr[i][j];
	++k;
      }
    }
  }
}