参数资料
型号: CORE1553BRT-AR
厂商: Microsemi SoC
文件页数: 65/74页
文件大小: 0K
描述: IP MODULE CORE1553 REMOTE TERM
标准包装: 1
系列: *
8 – VHDL Testbench Procedure and Function
Calls
Both the verification and VHDL user testbenches provided with the core include some low-level support
routines that you can use to verify your 1553BRT. These are available in the three packages that can be
accessed by adding the following four lines to your VHDL source code:
library Core1553B;
use Core1553B.misc.all;
use Core1553B.textio.all;
use Core1553B.test1553b.all;
These routines make use of the following types, which are also declared in these packages:
subtype INT1BIT
subtype INT5BIT
subtype NIBBLE
subtype BYTE
subtype WORD
type BYTE_ARRAY
type WORD_ARRAY
type PACKET
is
is
is
is
is
is
is
is
integer range 0 to 1;
integer range 0 to 31;
std_logic_vector ( 3 downto 0);
std_logic_vector ( 7 downto 0);
std_logic_vector (15 downto 0);
array ( INTEGER range <>) of BYTE;
array ( INTEGER range <>) of WORD;
array ( INTEGER range 0 to 31) of WORD;
The two record structures used in the encoder decoder module are as follows:
type TQMSGREQ
record
RT :
TX :
SA :
MCWC :
RTRT :
RT2 :
SA2 :
DATA :
end record;
type TQMSGOUT
record
OKAY :
COUNT :
CW1 :
CW2 :
SW1 :
SW2 :
DATA :
is
INT5BIT;
INT1BIT;
INT5BIT;
INTEGER range 0 to 32;
BOOLEAN;
INT5BIT;
INT5BIT;
PACKET;
is
BOOLEAN;
INTEGER;
WORD;
WORD;
WORD;
WORD;
PACKET;
end record;
The following type conversion routines are provided to convert between integer, std_logic, and Boolean
types:
function
function
function
function
function
function
function
function
function
to_slv1bit( x: INT1BIT ) return std_logic_vector;
to_sl1bit( x: INT1BIT ) return std_logic;
to_slv5bit( x: INT5BIT ) return std_logic_vector;
to_int1bit( x: boolean ) return INT1BIT;
to_int1bit( x: std_logic ) return INT1BIT;
to_int1bit( x: std_logic_vector ) return INT1BIT;
to_int5bit( x: std_logic_vector ) return INT5BIT;
to_byte ( x : INTEGER ) return BYTE;
to_word ( x : INTEGER ) return WORD;
Revision 3
65
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