Vhdl library_use declaration, Ports (altecc_encoder), Ports (altecc_decoder) – Altera Integer Arithmetic IP User Manual
Page 45: Vhdl library_use declaration -7, Ports (altecc_encoder) -7, Ports (altecc_decoder) -7
data:in std_logic_vector(width_codeword-1 downto 0);
q:out std_logic_vector(width_dataword-1 downto 0));
end component;
VHDL LIBRARY_USE Declaration
The VHDL LIBRARY-USE declaration is not required if you use the VHDL Component Declaration.
LIBRARY altera_mf;
USE altera_mf.altera_mf_components.all;
Ports (ALTECC_ENCODER)
The following tables list the input and output ports for the ALTECC_ENCODER megafunction.
Table 5-3: ALTECC_ENCODER Megafunction Input Ports
Port Name
Required
Description
data[]
Yes
Data input port. The size of the input port depends on the
WIDTH_
DATAWORD
parameter value. The data[] port contains the raw data to be
encoded.
clock
Yes
Clock input port that provides the clock signal to synchronize the
encoding operation. The clock port is required when the
LPM_
PIPELINE
value is greater than 0.
clocken
No
Clock enable. If omitted, the default value is
1
.
aclr
No
Asynchronous clear input. The active high
aclr
signal can be used at
any time to asynchronously clear the registers.
Table 5-4: ALTECC_ENCODER Megafunction Output Ports
Port Name
Required
Description
q[]
Yes
Encoded data output port. The size of the output port depends on the
WIDTH_CODEWORD
parameter value.
Ports (ALTECC_DECODER)
The following tables list the input and output ports for the ALTECC_DECODER megafunction.
Table 5-5: ALTECC_DECODER Megafunction Input Ports
Port Name
Required
Description
data[]
Yes
Data input port. The size of the input port depends on the
WIDTH_
CODEWORD
parameter value.
UG-01063
2014.12.19
VHDL LIBRARY_USE Declaration
5-7
ALTECC (Error Correction Code: Encoder/Decoder)
Altera Corporation