Visible to Intel only — GUID: sam1403479232284
Ixiasoft
Visible to Intel only — GUID: sam1403479232284
Ixiasoft
10.4. Enabling and Disabling IEEE Std. 1149.1 BST Circuitry
The IEEE Std. 1149.1 BST circuitry is enabled after the Arria® V device powers up. However for Arria® V SoC FPGAs, you must power up both HPS and FPGA to perform BST.
The HPS should be held in reset while performing BST to stop the I/Os being accessed or setup by the HPS.
To ensure that you do not inadvertently enable the IEEE Std. 1149.1 circuitry when it is not required, disable the circuitry permanently with pin connections as listed in the following table.
JTAG Pins40 | Connection for Disabling |
---|---|
TMS | VCCPD supply of Bank 3A |
TCK | GND |
TDI | VCCPD supply of Bank 3A |
TDO | Leave open |
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