发明授权
- 专利标题： Reset circuit for a programmable logic device
- 专利标题（中）： 可编程逻辑器件的复位电路
-
申请号： US670916申请日： 1996-06-26
-
公开(公告)号： US5689516A公开(公告)日： 1997-11-18
- 发明人: Ronald J. Mack , Derek R. Curd , Sholeh Diba , Napoleon W. Lee , Kameswara K. Rao , Mihai G. Statovici
- 申请人： Ronald J. Mack , Derek R. Curd , Sholeh Diba , Napoleon W. Lee , Kameswara K. Rao , Mihai G. Statovici
- 申请人地址： CA San Jose
- 专利权人： Xilinx, Inc.
- 当前专利权人： Xilinx, Inc.
- 当前专利权人地址： CA San Jose
- 主分类号： G01R31/3185
- IPC分类号： G01R31/3185 ; G06F11/267 ; G06F11/00
摘要：
A programmable logic device (PLD) includes test circuitry compatible with the JTAG standard (IEEE Standard 1149.1). The PLD also includes a programmable JTAG-disable bit that can be selectively programmed to disable the JTAG circuitry, leaving the PLD to operate as a conventional, non-JTAG-compatible PLD. The PLD also includes means for testing the JTAG test circuitry to determine whether the JTAG circuitry is defective, and means for programming the JTAG-disable bit to disable the JTAG circuitry if the testing means determines that the JTAG circuitry is defective.
公开/授权文献
- US4547843A Multiple output DC power supply 公开/授权日：1985-10-15
信息查询
IPC分类:
