Libraries GuideChapter 10: Design Elements (SOP3 to XORCY_L)
TMS
Boundary Scan Test Mode Select Input Pad
XC3000
| XC4000E
| XC4000X
| XC5200
| XC9000
| Spartan
| SpartanXL
| Spartan2
| Virtex
|
|---|
N/A
| Primitive
| Primitive
| Primitive
| N/A
| Primitive
| Primitive
| N/A
| N/A
|
The TMS input pad is connected to the boundary scan TMS input. It determines which boundary scan operation is performed. The function of the TMS pad is device configuration dependent and can be used as follows.
- During configuration, TMS is connected to the boundary scan logic.
- After configuration, if boundary scan is not used, the TMS pad is unrestricted and can be used by the routing tools as an input/output pad.
- After configuration, if boundary scan is used, the TMS pad can be used for user-logic input by connecting the TMS pad directly to the user logic.
