ND38GHP

Source: Verilog/Shared/ndlib/ND38GHP.v

Where it sits (Simulation): ND120_TOP > ND120_CORE > ND3202D > CPU_15 > CPU_PROC_32 > CPU_PROC_CGA_33 > CGA > CGA_DCD > ND38GHP - instance path: CORE.CPU_BOARD.CPU.PROC.CGA.DELILAH.DCD.C22

Used in: CGA_DCD (all tops)

Contains: Decoder_8

Module hierarchy - All modules

Schematic

Drawn from the Verilog: the yosys netlist of the Simulation (Verilator) build, instance CORE.CPU_BOARD.CPU.PROC.CGA.DELILAH.DCD.C22. Sub-modules are boxes (click the picture to open it full size; there every sub-module box links to its page, and every wire shows its Verilog name).

Description

ND120 Component : ND38GHP (3-to-8 decoder) Last reviewed: 1-DEC-2024 Ronny Hansen

Ports

Direction	Width	Name	Description
input	1	A
input	1	B
input	1	C
input	1	GN
output	1	Z0
output	1	Z1
output	1	Z2
output	1	Z3
output	1	Z4
output	1	Z5
output	1	Z6
output	1	Z7

Verilog source

Verilog/Shared/ndlib/ND38GHP.v on GitHub.

Show the Verilog of ND38GHP (103 lines)

/**************************************************************************
** ND120                                                                 **
**                                                                       **
** Component : ND38GHP  (3-to-8 decoder)                                 **
**                                                                       **
** Last reviewed: 1-DEC-2024                                             **
** Ronny Hansen                                                          **
***************************************************************************/


module ND38GHP (
    input A,
    input B,
    input C,
    input GN,

    output Z0,
    output Z1,
    output Z2,
    output Z3,
    output Z4,
    output Z5,
    output Z6,
    output Z7
);

  /*******************************************************************************
   ** The wires are defined here                                                 **
   *******************************************************************************/
  wire [2:0] s_sel;
  wire       s_g;
  wire       s_out0;
  wire       s_out1;
  wire       s_out2;
  wire       s_out3;
  wire       s_out4;
  wire       s_out5;
  wire       s_out6;
  wire       s_out7;
  wire       s_z0_out;
  wire       s_z1_out;
  wire       s_z2_out;
  wire       s_z3_out;
  wire       s_z4_out;
  wire       s_z5_out;
  wire       s_z6_out;
  wire       s_z7_out;

  /*******************************************************************************
   ** The module functionality is described here                                 **
   *******************************************************************************/

  /*******************************************************************************
   ** Here all input connections are defined                                     **
   *******************************************************************************/
  assign s_sel[0] = A;
  assign s_sel[1] = B;
  assign s_sel[2] = C;
  assign s_g    = ~GN;

  /*******************************************************************************
   ** Here all output connections are defined                                    **
   *******************************************************************************/
  assign Z0 = s_z0_out;
  assign Z1 = s_z1_out;
  assign Z2 = s_z2_out;
  assign Z3 = s_z3_out;
  assign Z4 = s_z4_out;
  assign Z5 = s_z5_out;
  assign Z6 = s_z6_out;
  assign Z7 = s_z7_out;

  /*******************************************************************************
   ** Here all in-lined components are defined                                   **
   *******************************************************************************/

  assign s_z0_out = s_out0;
  assign s_z1_out = s_out1;
  assign s_z2_out = s_out2;
  assign s_z3_out = s_out3;
  assign s_z4_out = s_out4;
  assign s_z5_out = s_out5;
  assign s_z6_out = s_out6;
  assign s_z7_out = s_out7;

  /*******************************************************************************
   ** Here all normal components are defined                                     **
   *******************************************************************************/
  Decoder_8 PLEXERS_1 (
      .decoderOut_0(s_out0),
      .decoderOut_1(s_out1),
      .decoderOut_2(s_out2),
      .decoderOut_3(s_out3),
      .decoderOut_4(s_out4),
      .decoderOut_5(s_out5),
      .decoderOut_6(s_out6),
      .decoderOut_7(s_out7),
      .enable(s_g),
      .sel(s_sel[2:0])
  );


endmodule