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AR# 1639

Orcad Capture 7.0 - Design rule check gives warning message: "[DRC0014] for BUFT components"

Description

Keywords: Capture, design rule, check, BUFT, [DRC0014]

Urgency: Standard

General Description:
When using 3-state buffers (i.e. BUFT8) in an Orcad Capture design, the following
error may occur when a Design rule check is run from Orcad.

[DRC0014] Type of pin above does not match the pin type of corresponding
port below U...(This is repeated for every single output pin of the macro.)

解决方案

This message comes because the symbol output pins of the BUFT8 have been labeled as
type "3-state," and the output pins of the underlying schematic are of type "output."

This will not cause a problem when implementing a design because the net type does not
get passed on to the .xnf file.

This appears to be an oversight in the creation of the libraries, and the problem has been
brought to the attention of Orcad.

To prevent the message from appearing, you can descend into the BUFT8 or other BUFT
component and change the output types to 3-state.

NOTE: To descend down the hierarchy, you may need to change the component type to
"not primitive."

Other elements with mislabeled ports are: BUFE, BUFE4, BUFE8, BUFE16, BUFT4, BUFT8,
BUFT16, OBUFE, OBUFE4, OBUFE8, OBUFE16, OBUFT4, OBUFT8, and OBUFT16.
AR# 1639
创建日期 08/31/2007
Last Updated 10/07/2008
状态 Archive
Type 综合文章