TapCommunicator

JTAG TapCommunicator facilitates remote execution and diagnostics of boundary-scan applications, regardless of distance or environmental difficulties. The off-the-shelf system is based on a one gigabit ethernet connection (IEEE Std 802.3z) providing virtually unlimited range between the controller and target. TapCommunicator is based on the ‘licencable’ TapSpacer IP, technology that allows any (packetised) communication link to be used. For solutions using communication links other than Ethernet, contact JTAG Technologies.

The standard TapCommunicator system consists of an “uplink” or primary module (JT 2143), located in proximity to the boundary-scan controller, and one or more “downlink” or secondary (JT 2144) modules at the target. Licenced TapSpacer systems will work in a similar way though it is expected the compact logic code (for uplink and downlink) will be integrated into the users own ASIC or FPGA.