Patent ID: 6721833
Filing Date: 2004-04-13
Classification: G06F

Abstract:
A bus arbitration method within a control chipset, wherein the control chipset further comprises a first control chip and a second control chip, data are transferred between the first and the second control chips through a bus, the bus comprises a bidirectional bus, the bus arbitration method within a control chipset comprising:the second control chip asserting a request signal for using the bus when the second control chip needs to use the bus; the first control chip immediately stopping driving the bus if the first control chip does not use the bus currently, or the first control chip stopping driving the bus after the first chip completes a current bus transaction, when the first control chip detects the request signal; the second control chip driving the bus after waiting for a predetermined time when the second control chip detects that the first control chip is not using the bus currently; and the second control chip driving the bus after waiting a clock numbers for executing a current bus command by the first control chip and a turn-around cycle, when the second control chip detects that the first control chip uses the bus currently.