4.2.6 LPM_BUSTRI

 

Copyright © 1998 University of Manchester

Ports
Port Name
Type
Usage
DescriptionComments
TriData
IO
Required
Bi-directional bus signal Vector, LPM_Width wide
Data
I
Note 1
Data input to TriData bus Vector, LPM_Width wide. One of Data or Result must be used.
EnableDT
I
Optional
If HIGH, enables Data onto the TriData bus. Default value is Low. Required if Data is used.
Result
O
Note 1
Output from TriData bus. Vector, LPM_Width wide. One of Data or Result must be used.
EnableTR
I
Optional
If HIGH, enable TriData onto the Result bus. Default value is Low. Required if Result is used

Note 1: Either the Result or Data port is required. Both may be used.

Properties
Property
Usage
ValueComments
LPM_Width
Required
LPM Value > 0Width of input and output vectors

Functions
EnableDT
EnableTR
Data
Result
TriData
L
L
X
Hi-Z
Hi-Z Note 1
L
H
X
VALUE

(From TriData)
VALUE
H
L
VALUE
Hi-Z
VALUE

(From Data)
H
H
VALUE
VALUE

(From Data)
VALUE

(From Data)

Note1: When both control ports (EnableDT and EnableTR) are inactive (LOW) the Result port is high impedance, and the TriData port will take its value from the attached net (i.e. it is not driven by the LPM_Bustri).