The following table describes the signals on the JTAG interfaces:
Table1.JTAG signals
Signal
I/O
Description
-
This pin is connected in the RVI run control unit, but is not supported in the current release of the software. It is reserved for compatibility with other equipment to be used as a debug acknowledge signal from the target system. It is recommended that this signal is pulled LOW on the target.
-
This pin is connected in the RVI run control unit, but is not supported in the current release of the software. It is reserved for compatibility with other equipment to be used as a debug request signal to the target system. The RVI software maintains this signal as LOW.
When applicable,RVI uses the scan chain 2 of the processor to put the processor in debug state. It is recommended that this signal is pulled LOW on the target.