Description
This Tcl command is specific to the Simultaneous Switching Noise (SSN) Analyzer. It sets specific
I/Os to the dont_care state or resets dont_care I/Os to non-dont_care. A dont_care
I/O is considered as an aggressor only and not as a victim.
ssn_analyzer_set_dontcare -io {ioName} \
-iobank {ioBankName} \
-value {integer value}
Supported Die/Package
| Family |
Die |
Package |
| SmartFusion® 2 |
M2S150|T|TS |
1152 FC |
| M2S090|T|TS |
676 FBGA |
| M2S060|T|TS |
676 FBGA |
| M2S050|T|TS|T_ES |
896 FBGA |
| M2S025|T|TS |
484 FBGA |
| M2S025|T|TS |
400 VF |
| M2S010|T|TS |
484 FBGA |
| IGLOO® 2 |
M2GL150|T|TS |
1152 FC |
| M2GL090|T|TS |
676 FBGA |
| M2GL060|T|TS |
676 FBGA |
| M2GL050|T|TS |
896 FBGA |
| M2GL025|T|TS |
484 FBGA |
| M2GL025|T|TS |
400 VF |
| M2GL010|T|TS |
484 FBGA |
Not Supported Die/Package
| Family |
Die |
Package |
| RTG4™ |
RT4G150|L |
1657 FCG |
| PolarFire® |
MPF200TS |
FCS325 |
| MPF300TS |
FC484/FCS536/FCV484 |
| MPF300XT |
FCG484 |
| MPF500TS |
FC1152/FC784 |
| RTPF500T|TL|TS|TLS |
CG1509 |
Important: 1 ns pulse width is only supported for MPF300XT/FCG1152.
Arguments
| Parameter | Type | Description |
|---|
| io | string | Specifies the I/O to be dont_care (the don't_care I/O is not be considered as a victim,
whereas it is considered as an aggressor for the SSN analysis) or
resets dont_care I/Os to non-dont_care. |
| iobank | string | Specifies the I/O bank name the specified I/O belongs to. |
| value | integer | Specifies an integer of 0 or 1 where
- 1 is used to
set an I/O to be dont_care.
- 0 is used to
reset an I/O to be non-dont_care.
|
| Return Type | Description |
|---|
| None | None |
Error Codes
| Error Code | Description |
|---|
| None | Parameter 'ioBank' is not defined. Valid command formatting is 'set_dontcare -io "io" -iobank "iobank" -value "integer value"'. |
| None | Required parameter 'iobank' is missing. |
| None | Parameter 'io' has illegal value. |
| None | Required parameter 'io' is missing. |
| None | Parameter 'param_name' is not defined. Valid command formatting is 'set_dontcare -io "io" -iobank "iobank" -value "integer value"'. |
Supported Families
| Supported Families |
| PolarFire® |
| RTG4™ |
| SmartFusion® 2 |
| IGLOO® 2 |
Example
The following example sets the I/O named "DATA2" in I/O bank "Bank2" to dont_care:
ssn_analyzer_set_dontcare -io {DATA2}
-ioBank {Bank2}
-value {1}
The following example sets the dont_care I/O named "DATA1" in I/O bank "Bank3" to non-dont_care:
ssn_analyzer_set_dontcare -io {DATA1} \
-ioBank {Bank3} \
-value {0}
