Nova Patents
CN1521664B

Reduced CardBus controller

Abstract

A cardbus controller is provided that reduces signal count and board area. In one exemplary embodiment, the controller is adapted to multiplex selected signals in a two PC Card system so that signal lines are not repeated. The selected signals may include common signals between two PC Cards. The controller may also include early detection circuitry, arbitration circuitry and power management circuitry to more effectively operate two PC Cards. In other exemplary embodiments, the invention provides a method of reducing the chip area of a PC Card controller integrated circuit by mapping an internal IDSEL signal to an external address line.

CN1521664B, drawing sheet 1
Sheet 1 of 4

Term

Term ended

Expired 17 October 2023, 2.9 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

12 claims: 1 independent, 11 dependent

  1. 1
    A driving PC card system, a characterised is:Wherein the system is control at least two independent PC card comprises a controllers;the controller generating for controlling at least two independent PC card the PC card signal wire, and clamping supply is used to the multi-channel multiplexings designating, wherein the signal and can be control at least two independent PC card. 一种用于驱动PC卡的系统,其特征在于:所述系统包括一个能控制至少两个独立PC卡的控制器,所述控制器产生用于控制所述至少两独立PC卡的PC卡信号线、并且用于多路复用选定的所述信号线,所述选定信号可操控所述至少两独立PC卡。