公开(公告)号：US06930514B2

公开(公告)日：2005-08-16

申请号：US10261990

申请日：2002-09-30

Applicant: Justin Randolph McCollum ,  Stephen Scott Piper ,  David Michael Head

Inventor： Justin Randolph McCollum ,  Stephen Scott Piper ,  David Michael Head

IPC: G06F13/42 ,  H03K19/0175

CPC classification number: G06F13/423

Abstract: Systems and methods for transferring data. A circuit transfers information between two buses using different signal voltage levels and multiplexes signals applied to the second bus over multiple devices coupled thereto. The data on a first data bus is transferred at a first voltage level and the data on a second data bus is transferred at a second voltage level. For example, the first data bus may transfer data at 3.3V and the second data bus may transfer data at 5V. A logic device (e.g., a CPLD) is connected between the first and the second data buses for transferring the data between the first and second voltage levels. The logic device is also configured for multiplexing the data with the second voltage level between first and second devices (e.g., one or more LEDs and/or NVSRAMs) connected to the second data bus.

Abstract translation: 用于传输数据的系统和方法。 电路使用不同的信号电压电平在两个总线之间传送信息，并且通过耦合到其上的多个设备复用施加到第二总线的信号。 第一数据总线上的数据以第一电压电平传送，并且第二数据总线上的数据以第二电压电平传送。 例如，第一数据总线可以在3.3V传输数据，第二数据总线可以在5V传输数据。 逻辑器件（例如，CPLD）连接在第一和第二数据总线之间，用于在第一和第二电压电平之间传送数据。 逻辑器件还被配置为将数据与连接到第二数据总线的第一和第二器件（例如，一个或多个LED和/或NVSRAM）之间的第二电压电平进行多路复用。