”This new SWORD single-wire debug makes the 8051 core even more resource-efficient, saving three pins over JTAG yet still providing complete debugging capabilities.” The SWORD interface works with the ...

HiTech Global Distribution announces Availability of the world's fastest 8051 Microcontroller IP Core with JTAG on-chip debug interface June 1, 2005 - San Jose, California - HiTech Global Distribution ...