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3-4
Designing with Programmable Logic
You can also change programmable logic symbols back to
discrete PCB devices.
To revert to non-programmable logic
1
Select the symbol(s) and bring up the Edit Attributes dialog
box as described in the above two procedures.
2
Click the IMPL= entry.
3
Clear (set to blank) the Value text box.
4
Click Save Attr.
5
Click OK.
Using DSL Blocks
This section describes how to
define and edit DSL blocks within
Schematics. For information on
DSL language syntax, refer to
the PIL Reference in PLSyn
online help.
In addition to logic symbols, you can define programmable logic
using DSL (Design Synthesis Language) blocks on your
schematic.
What Are DSL Blocks?
Note DSL files must have the
.dsl extension.
DSL blocks are hierarchical blocks which have a languagebased definition instead of a symbolic definition. DSL logic
expressions and constructs take the place of discrete logic
symbols. So, instead of referencing a schematic file (.sch),
DSL blocks reference a DSL source code file (.dsl).