period_check Entity Reference
Check the period of signal. More...
Inheritance diagram for period_check:
Collaboration diagram for period_check:
Architectures | |
| period_check_arc | Architecture |
| Check the period of signal. More... | |
Libraries | |
| ieee | |
| standard IEEE library | |
Packages | |
| std_logic_1164 | |
| std_logic definitions, see file | |
| std_logic_arith | |
| arithmetic operations on std_logic datatypes, see file | |
| std_logic_unsigned | |
| unsigned functions use ieee.std_logic_unsigned.all; operators for std_logic_vector type, see file | |
Generics | |
| PERIOD | integer range 0 to 255 := 8 |
| Period to check for, must be an even number. | |
Ports | |
| CLK | in std_logic |
| Clock. | |
| RES | in std_logic |
| Reset. | |
| EN | in std_logic |
| Enable. | |
| A | in std_logic |
| Input. | |
| Y | out std_logic |
| Output, high if signal is periodic with PERIOD. | |
Detailed Description
Check the period of signal.This entity checks an incoming signal for a period specified with a generic.
Definition at line 36 of file period_check.vhd.
Member Data Documentation
A in std_logic [Port] |
CLK in std_logic [Port] |
EN in std_logic [Port] |
ieee library [Library] |
PERIOD integer range 0 to 255 := 8 [Generic] |
RES in std_logic [Port] |
std_logic_1164 package [Package] |
std_logic_arith package [Package] |
arithmetic operations on std_logic datatypes, see file
Definition at line 29 of file period_check.vhd.
std_logic_unsigned package [Package] |
unsigned functions use ieee.std_logic_unsigned.all; operators for std_logic_vector type, see file
Definition at line 31 of file period_check.vhd.
Y out std_logic [Port] |
The documentation for this class was generated from the following file:
