JTAG introduces 'Gigabit Ethernet TapCommunicator(TM)', an intelligent long-distance TAP connection
Nov 08, 2005
JTAG Technologies, the leading world-wide provider of boundary-scan (also known as JTAG & IEEE Std.1149.1) products, announces today the unique new product TapCommunicator(TM), for remote, high-fidelity communications of boundary-scan test vectors and device programming data, using existing communication links.
Today's systems running boundary-scan applications in production or service have had to be located in close proximity to the target or unit-under-test (UUT). Even while supporting widespread corporate test topologies, it has been necessary to co-locate the boundary-scan controller and target PCBs or sub-systems. Various techniques such as manipulation of test clock (TCK) phase / frequency or repeaters have been used to overcome the distance limitation, but these approaches have often introduced compromises and are only useful within a limited, local range.
TapCommunicator(TM) overcomes all previous range limitations in an affordable and compact product realization. TapCommunicator(TM) consists of an 'Uplink' and a 'Downlink' module, both compatible with IEEE Std. 802.3z -1998 (Gigabit Ethernet) and IEEE Std. 1149.1, which code and decode the boundary-scan applications. The result is an extremely robust communications system that allows limitless high-speed links between tester and target with no signal degradation. TapCommunicator(TM) is based on TapSpacer® technology, developed and patented by Patria Advanced Solutions. Since it also operates on the standard IEEE 1149.1 protocols and state machine, TapCommunicator is vendor-independent and can be used with any compliant tester, emulator or programmer product.