Entity: DspComparator

Diagram

time TPD_G sl RST_POLARITY_G string USE_DSP_G natural range 0 to 1 PIPE_STAGES_G positive range 2 to 96 WIDTH_G sl clk sl rst sl ibValid slv(WIDTH_G-1 downto 0) ain slv(WIDTH_G-1 downto 0) bin sl obReady sl ibReady sl obValid slv(WIDTH_G-1 downto 0) aout slv(WIDTH_G-1 downto 0) bout sl eq sl gt sl gtEq sl ls sl lsEq

Description

Company : SLAC National Accelerator Laboratory

Description: Generalized DSP inferred comparator

This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to

the terms contained in the LICENSE.txt file.

Generics

Generic name Type Value Description
TPD_G time 1 ns
RST_POLARITY_G sl '1' '1' for active high rst, '0' for active low
USE_DSP_G string "yes"
PIPE_STAGES_G natural range 0 to 1 0
WIDTH_G positive range 2 to 96 32

Ports

Port name Direction Type Description
clk in sl
rst in sl
ibValid in sl Inbound Interface
ibReady out sl
ain in slv(WIDTH_G-1 downto 0)
bin in slv(WIDTH_G-1 downto 0)
obValid out sl Outbound Interface
obReady in sl
aout out slv(WIDTH_G-1 downto 0) Registered copy of ain
bout out slv(WIDTH_G-1 downto 0) Registered copy of bin
eq out sl equal (a = b)
gt out sl greater than (a > b)
gtEq out sl greater than or equal to (a >= b)
ls out sl less than (a < b)
lsEq out sl

Signals

Name Type Description
r RegType
rin RegType
tReady sl
eqInt sl
gtInt sl
gtEqInt sl
lsInt sl
lsEqInt sl
sData slv(2*WIDTH_G-1+5 downto 0)
mData slv(2*WIDTH_G-1+5 downto 0)

Constants

Name Type Value Description
REG_INIT_C RegType ( ibReady => '0',
tValid => '0',
aout => (others => '0'),
bout => (others => '0'),
diff => (others => '0'))

Types

Name Type Description
RegType

Processes

Instantiations