Input delay

Purpose: Indicates whether the input path delay elements are to be programmed. If they will be programmed, this option adds the specified input delay to the input path.

Families

Supported

Fusion

Yes

ProASIC3E

Yes

ProASIC3

No

ProASIC PLUS

No

Axcelerator

Yes

ProASIC

No

SX-A

No

SX

No

RTSX-S 

No

eX

No

MX

No

Values: Use this attribute to turn the input delay on or off.

Default value: The default value is off.

For ProASIC3E devices, you specify the input delay per pin. You will see the actual delay only in Timer or in the SDF file.

Note: The actual input delay is a function of the operating conditions and is automatically computed by the delay extractor when a timing report is generated.

 

For Axcelerator devices, you specify the input delay per bank. You then set its input delay with the slider in the More I/O Bank Attributes. Possible values are 0 to 31.