公开(公告)号：US5594874A

公开(公告)日：1997-01-14

申请号：US130090

申请日：1993-09-30

申请人： Puducode S. Narayanan ,  Tai T. Nguyen ,  Arunachalam Vaidyanathan ,  Edward C. Garcia

发明人： Puducode S. Narayanan ,  Tai T. Nguyen ,  Arunachalam Vaidyanathan ,  Edward C. Garcia

IPC分类号： G06F13/40 ,  G06F13/00

CPC分类号： G06F13/4072

摘要： An integrated automatic bus setting, sensing and switching interface unit is manufactured on board an integrated circuit to interface between the integrated circuit and the system bus. The interface unit can support a plurality of bus structures utilizing the same pins on the integrated circuit for different functions. Several modes of establishing an interface structure are available in the unit. An Address Strobe pin on the integrated circuit is used to automatically detect a signal level representative of the bus structure to be used. A code representative of the parameters of the bus structure is also stored in a configuration register for controlling the interface unit and configuring the pins on the integrated circuit for the specific bus structure to be used. The Basic Input Output System (BIOS) as its first operation stores the code in a register whose contents are then written to the configuration register of the integrated circuit for controlling and configuring the integrated circuit. A combination of these modes is also available.

摘要翻译： 集成自动总线设置，感测和切换接口单元在集成电路上制造，以在集成电路和系统总线之间进行接口。 接口单元可以支持使用集成电路上相同引脚的多个总线结构，用于不同的功能。 建立界面结构的几种模式在本单元中可用。 集成电路上的地址选通引脚用于自动检测代表要使用的总线结构的信号电平。 代表总线结构参数的代码也存储在配置寄存器中，用于控制接口单元并配置用于要使用的特定总线结构的集成电路上的引脚。 基本输入输出系统（BIOS）作为其第一操作将代码存储在寄存器中，其内容然后被写入用于控制和配置集成电路的集成电路的配置寄存器。 这些模式的组合也是可用的。