JTAG pin interface on STA8090FG

[philippe26]

Hi,

The datasheet of STA8090FG only list in table 5 the test/emulated dedicated pins but there is no information how to use the pins.

Is it IEEE 1149.1 compliant ?

What are the interface timings ?

Does TRSTn only reset the JTAG logic and must be left to ground during normal operation ?

Thanks,

Regards.

[Tesla DeLorean]

I'd imagine it functions like the JTAG on every other ARM9 based core from the last few decades. Pretty sure the eval board exposes it to a header, and has a schematic.

https://www.st.com/resource/en/data_brief/dm00373428.pdf

Doesn't Thales have a business account and contacts directly into ST they could use to find an FAE? They'd probably be able to supply an IBIS file too.