Visible to Intel only — GUID: tji1719427824655
Ixiasoft
Visible to Intel only — GUID: tji1719427824655
Ixiasoft
2.7.3. Boundary scan test is not feasible for certain I/O pins
Description
Due to an IO architectural issue, JTAG instructions such as EXTEST, INTEST, and HIGHZ cannot be executed correctly for HSIO pins and HVIO pins. For HSIO pins, this issue only appears after the device is configured and for HVIO pins, this issue occurs before device configuration. As a result, boundary scan testing is not feasible for HSIO pins in post-configuration mode and HVIO pins in pre-configuration mode.
Workaround
For HSIO pins, use boundary scan test in pre-configuration mode. For HVIO pins, use boundary scan test after configuration mode.