Entity: GenericCounter

• File: GenericCounter.vhd

Diagram

Description

• Name: Generic Counter
  
• Version: 0.0.2
  
• Author: Maximilian Passarello (Blog)
  
• License: MIT
  

Generic Counter with the following features:

• Without Output Register
• Look ahead value (configurable per generic)
• Synchronous reset
• Clock enable
• Set with priority over the CountEnable
• Over- and Underflow flag
• Configurable width
• Configurable initial value
• Configurable reset value
• Configurable counting direction (Up and Down counting)

History

• 0.0.1 (2024-03-15) Initial version
• 0.0.2 (2024-03-16) Added Testbench. Simulation passed.

Waveform

Generics

Generic name	Type	Value	Description
Width	integer	4	Width of the counter
InitialValue	integer	0	Initial value of the counter
ResetValue	integer	0	Reset value of the counter
CountingDirection	string	"UP"	Counting direction: "UP" or "DOWN"
LookAhead	integer	0	Look ahead value

Ports

Port name	Direction	Type	Description
CLK	in	std_logic	Clock input; rising edge
RST	in	std_logic	Reset input; active high; synchronous
CE	in	std_logic	Clock enable; active high
CountEnable	in	std_logic	Count enable; active high
CounterValue	out	std_logic_vector(Width - 1 downto 0)	Counter Value
LookAheadValue	out	std_logic_vector(Width - 1 downto 0)	Look ahead value
Set	in	std_logic	Set with priority over the CountEnable
SetValue	in	std_logic_vector(Width - 1 downto 0)	If set is high, the counter will be set to SetValue
OverUnderflow	out	std_logic	Over- and Underflow flag