TMS320F280049: Using TDO pin as GPIO

Brian,

This will be fine to use TDO as a GPIO.  A scan sequence on the TMS pin is required to bring the JTAG out of reset, until that happens TDO will not be needed.  In addition, on this device we support 2 pin advance cJTAG, that only uses TMS and TCK pins; if customer uses this mode, then TDO nor TDI will not be needed even for JTAG connection.

Best,
Matt