Purpose: Allows inclusion of a weak resistor for either pull-up or pull-down of the input buffer.
|
Families |
Supported |
|
Fusion |
Yes |
|
ProASIC3E |
Yes |
|
ProASIC3 |
Yes |
|
ProASIC PLUS |
No |
|
Axcelerator |
Yes |
|
ProASIC |
No |
|
SX-A |
No |
|
SX |
No |
|
RTSX-S |
No |
|
eX |
No |
|
MX |
No |
Values: Use this attribute to set the resistor pull. Your choices are None, Up (pull-up), or Down (pull-down).
Default value: The default value is None except when an I/O exists in the netlist as a port, is not connected to the core, and is configured as an output buffer. In that case, the default setting is for a weak pull-down.