Showing papers on "Spy-Bi-Wire published in 1999"

JTAG port-sharing device

Abstract: A JTAG port-sharing device that reduces the required number of hardware pins on an integrated circuit without limiting the integrated circuit testing to a particular debugging platform is provided. The JTAG port-sharing device eliminates the need to have individual hardware pins for each functional block that requires JTAG test interface and allows one set of hardware pins to be shared by a plurality of functional blocks. The JTAG port-sharing device is not limited by a particular debugging platform and allows the use of pre-owned and/or off-the-shelf testing software and/or JTAG debugger devices thereby leading to shorter development cycles and lower development costs.