Sequential Verulog Topics part 3 ppt
Sequential Verulog Topics part 3 ppt
...
and tranif1.
tran tranif0 tranif1
Symbols for these switches are shown in Figure 11 -3
below.
Figure 11 -3. Bidirectional Switches
The tran switch acts as a buffer between the two signals ... control signal is a
logical 1.
These switches are instantiated as shown in Example 11 -3
.
Example 11 -3 Instantiation of Bidirectional Switches
tran t1(inout1, inout2); //instance name t1...
Sequential Verulog Topics part 7 ppt
... combination of the inputs.
• Sequential UDPs are used to define blocks with timing controls. Blocks such
as latches or flipflops can be described with sequential UDPs. Sequential
UDPs are modeled ... sections will follow the same process. Figure 13- 2
summarizes the
general process of adding and invoking a user-defined system task.
Figure 13- 2. General Flow of PLI Task Addition a...
Sequential Verulog Topics part 1 ppt
... concisely.
//a [31 :0] is a 32 -bit vector and out[15:0] is a 16-bit vector
//Delay of 9 between each bit of a and every bit of out
specify
( a *> out) = 9; // you would need 32 X 16 = 35 2 parallel ... Figure 10 -3
, we take the
example in Figure 10-1
and compute the pin-to-pin delays for each input/output
p
ath.
Figure 10 -3. Pin-to-Pin Delay
Pin-to-pin delays for standa...
Sequential Verulog Topics part 5 ppt
... mux4_to_1 ( output out,
input i0, i1, i2, i3, s1, s0);
table
// i0 i1 i2 i3, s1 s0 : out
1 ? ? ? 0 0 : 1 ;
0 ? ? ? 0 0 : 0 ;
treated as x values.
12.2 .3 Shorthand Notation for Don't Cares ... UDP basics
In this section, we describe parts of a UDP definition and rules for UDPs.
12.1.1 Parts of UDP Definition
Figure 12-1
shows the distinct parts of a basic UDP definition i...
Sequential Verulog Topics part 8 ppsx
... are interconnected.
A conceptual internal representation of a module is shown in Figure 13- 3
.
Figure 13- 3. Conceptual Internal Representation a Module
Each set contains all elements of that ... routine my_monitor, which implements the user-defined
system task, is shown in Example 13- 3
.
Example 13- 3 PLI Routine to Monitor Nets for Value Changes
#include "acc_user.h"
to...
Sequential Verulog Topics part 9 ppsx
... would consider design constraints such as
timing, area, testability, and power. The designer would partition the design into
high-level blocks, draw them on a piece of paper or a computer terminal, ... spend more
time on designing at a higher level of representation, because less time is required
13. 5 Summary
In this chapter, we described the Programming Language Interface (PLI) for
V...
Sequential Verulog Topics part 10 pps
...
c_out = c;
The always statement
The always statement can be used to infer sequential and combinational logic. For
sequential logic, the always statement must be controlled by the change in ... ? i1 : i0;
It frequently translates to the gate-level representation shown in Figure 14 -3
.
Figure 14 -3. Multiplexer Description
The if-else statement
Single if-else statements translate...
Sequential Verulog Topics part 13 docx
... \PRES_STATE[1] , n289, n300, n301, n302, \PRES_STATE2 43[ 1] ,
n3 03, n304, \PRES_STATE[0] , n290, n291, n292, n2 93, n294,
n295, n296, n297, n298, n299, \PRES_STATE2 43[ 0] ;
PDFF \PRES_STATE_reg[1] ... U1 13 ( .in0(n295), .in1(n292), .out(n294) );
VNOT U126 ( .in(coin[1]), .out(n2 93) );
VNAND U112 ( .in0(coin[0]), .in1(n2 93) , .out(n292) );
VNAND U125 ( .in0(n294), .in1(n3 03...
Sequential Verulog Topics part 14 doc
... to the RTL and the gate-level
netlist and compare the output.
3:
Design a 3- to-8 decoder, using a Verilog RTL description. A 3- bit input
a[2:0] is provided to the decoder. The output of the ... similar to those
used for Verilog HDL simulators and are discussed in Section 15.1 .3
, Simulation.
15.1 .3 Simulation
There are three ways to simulate a design: software simulation, hardw...