1. What methods are available to automatically generate references for symbols on the circuit diagram?
3. All-sheets reference generation
References are generated for all sheets including layers below the circuit diagram directory. The LCDB (Component
Database for Schematic Design) is looked up for the components that have been entered using the LCDB, and the number
of gates in an IC that is implemented by multiple gates is considered when generating references.
2. What is the "Channel allocation" provided for the Gate Packager's assignment mode?
This is one method for attaching references when making hierarchical designs.
References are generated for each hierarchical level, and a channel identifier, which is set as a property for
each circuit block, is added at the beginning of the references.
3. If part names are changed on the schematic sheet, are the other properties also loaded from the LCDB (Component Database for Schematic Design)?
If you want the LCDB information to be reflected in schematics immediately when you change part names, choose the parts you want to change using the Parts Rule Based Search dialog box.
If you want the LCDB information to be reflected in schematics some time after you change part names, execute Reload Parts Info using the Sheet Editor or Reload Latest Info from the LCDB using Data Converter.
[Attribute] - [Parts Rule Based Search] |
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Parts Rule Based Search dialog box
[Utilities] -
[Reload Parts Info]Reload Parts Info
[Utilities] -
[Data Converter]Component Attribute reload from LCDB
4. I have difficulty assigning gates in Refference allocator.
5. When the Circuit Reference Allocator is executed in Assign All Gate mode, even the pin numbers are assigned.
The Circuit Reference Allocator references LCDB to determine how many gates a part contains and what sort of pin assignment each gate uses. As a result, pin numbers are reallocated when references are. This prevents pin number duplicate errors.
UNFIXED: no restrictions
FIXED: no swapping
COMPONENTFIXED: pin numbers in a part remain fixed
GATEFIXED: only pin swapping is allowed
Component properties include a "Fixed Reference Designator" that can be set to "UNLOCKED" or "LOCKED".
During reference reallocation, you can set the "Fixed Reference Designator" to "LOCKED" to lock the references for a specific component. Use this feature as required.