Mike Moore
USB Device Programming class project. This project allows a Python/Tk program running on a PC host to monitor/control a test-CPU programmed into an altera development board.
Dependencies: C12832_lcd USBDevice mbed-rtos mbed mmSPI
mmRTL/mux8x16.txt
- Committer:
- gatedClock
- Date:
- 2013-09-01
- Revision:
- 12:d10f526ca443
- Parent:
- 7:d1aca9ccbab8
File content as of revision 12:d10f526ca443:
/*----------------------------------copyright---------------------------------*/
// licensed for personal and academic use.
// commercial use must be approved by the account-holder of
// gated.clock@gmail.com
/*-----------------------------------module-----------------------------------*/
module mux8x16
(
iDin15, // data-input 15.
iDin14, // data-input 14.
iDin13, // data-input 13.
iDin12, // data-input 12.
iDin11, // data-input 11.
iDin10, // data-input 10.
iDin9, // data-input 9.
iDin8, // data-input 8.
iDin7, // data-input 7.
iDin6, // data-input 6.
iDin5, // data-input 5.
iDin4, // data-input 4.
iDin3, // data-input 3.
iDin2, // data-input 2.
iDin1, // data-input 1.
iDin0, // data-input 0.
iSel, // multiplexor select.
oDout // data-out.
);
/*--------------------------------description-----------------------------------
a 8-bit-wide, 16-selection multiplexor.
-------------------------------------notes--------------------------------------
------------------------------------defines-----------------------------------*/
/*-----------------------------------ports------------------------------------*/
input [ 7:0] iDin15; // data-input 15.
input [ 7:0] iDin14; // data-input 14.
input [ 7:0] iDin13; // data-input 13.
input [ 7:0] iDin12; // data-input 12.
input [ 7:0] iDin11; // data-input 11.
input [ 7:0] iDin10; // data-input 10.
input [ 7:0] iDin9; // data-input 9.
input [ 7:0] iDin8; // data-input 8.
input [ 7:0] iDin7; // data-input 7.
input [ 7:0] iDin6; // data-input 6.
input [ 7:0] iDin5; // data-input 5.
input [ 7:0] iDin4; // data-input 4.
input [ 7:0] iDin3; // data-input 3.
input [ 7:0] iDin2; // data-input 2.
input [ 7:0] iDin1; // data-input 1.
input [ 7:0] iDin0; // data-input 0.
input [ 3:0] iSel; // multiplexor select.
output [ 7:0] oDout; // data-out.
/*-----------------------------------wires------------------------------------*/
wire [ 7:0] iDin15; // data-input 15.
wire [ 7:0] iDin14; // data-input 14.
wire [ 7:0] iDin13; // data-input 13.
wire [ 7:0] iDin12; // data-input 12.
wire [ 7:0] iDin11; // data-input 11.
wire [ 7:0] iDin10; // data-input 10.
wire [ 7:0] iDin9; // data-input 9.
wire [ 7:0] iDin8; // data-input 8.
wire [ 7:0] iDin7; // data-input 7.
wire [ 7:0] iDin6; // data-input 6.
wire [ 7:0] iDin5; // data-input 5.
wire [ 7:0] iDin4; // data-input 4.
wire [ 7:0] iDin3; // data-input 3.
wire [ 7:0] iDin2; // data-input 2.
wire [ 7:0] iDin1; // data-input 1.
wire [ 7:0] iDin0; // data-input 0.
wire [ 3:0] iSel; // multiplexor select.
wire [ 7:0] oDout; // data-out.
/*---------------------------------registers----------------------------------*/
reg [ 7:0] rDout; // output register.
/*---------------------------------variables----------------------------------*/
/*---------------------------------parameters---------------------------------*/
/*-----------------------------------clocks-----------------------------------*/
/*---------------------------------instances----------------------------------*/
/*-----------------------------------logic------------------------------------*/
always @ (iDin15 or iDin14 or iDin13 or iDin12 or
iDin11 or iDin10 or iDin9 or iDin8 or
iDin7 or iDin6 or iDin5 or iDin4 or
iDin3 or iDin2 or iDin1 or iDin0 or iSel)
case (iSel)
15 : rDout = iDin15;
14 : rDout = iDin14;
13 : rDout = iDin13;
12 : rDout = iDin12;
11 : rDout = iDin11;
10 : rDout = iDin10;
9 : rDout = iDin9;
8 : rDout = iDin8;
7 : rDout = iDin7;
6 : rDout = iDin6;
5 : rDout = iDin5;
4 : rDout = iDin4;
3 : rDout = iDin3;
2 : rDout = iDin2;
1 : rDout = iDin1;
0 : rDout = iDin0;
endcase
assign oDout = rDout; // propagate output.
/*-------------------------------*/endmodule/*--------------------------------*/