公开(公告)号：US5946470A

公开(公告)日：1999-08-31

申请号：US648559

申请日：1996-05-15

Applicant: James R. Neal ,  Ted W. Pickerrell, Jr. ,  Louis W. Agatstein, Jr.

Inventor： James R. Neal ,  Ted W. Pickerrell, Jr. ,  Louis W. Agatstein, Jr.

IPC: G06F13/40 ,  G06F13/42

CPC classification number: G06F13/4068

Abstract: An upgrade integrated circuit is used in a board without redesigning the board. The board is operative at a first voltage level, and the upgrade integrated circuit is operative at a second voltage level. The method comprises the steps of intercepting a first set of signals originating from the board. These signals are shifted using a voltage level shifter to be operative at a second voltage level. The voltage level shifter, however, does not reside on the board. The voltage level shifted signals are provided to the upgrade integrated circuit. The upgrade integrated circuit and the voltage level shifter may reside on a processor card.

Abstract translation: 板上使用升级集成电路，无需重新设计电路板。 电路板工作在第一电压电平，升压集成电路工作在第二电压电平。 该方法包括以下步骤：拦截源自该板的第一组信号。 这些信号使用电压电平转换器移位，以在第二电压电平下工作。 然而，电压电平转换器不在电路板上。 电压电平转换信号提供给升级集成电路。 升级集成电路和电压电平转换器可以驻留在处理器卡上。