Hi,
The datasheet did not tell it is pulled-up or pull-down for TDO_IO in the IC of DS125DF1610.
We tested and find TDO_IO always in low voltage if ther is no JTAG signal.
Is it pulled-down in the IC? What's the value of pulled-down?
TMS,TCK,TDI are pulled-up in the IC,What's the value of pulled-up?