US 7,469,349 B2
Computer system and method of signal transmission via a PCI-Express bus
Chih-Cheng Han, Taipei (Taiwan); Ming-Jiun Chang, Taipei (Taiwan); Hsuan-Ching Chao, Taipei (Taiwan); and Chung-Hong Lai, Taipei (Taiwan)
Assigned to NVIDIA Corporation, Santa Clara, Calif. (US)
Filed on Dec. 23, 2005, as Appl. No. 11/315,170.
Claims priority of application No. 94107919 (JP), filed on Mar. 15, 2005.
Prior Publication US 2006/0212731 A1, Sep. 21, 2006
Int. Cl. G06F 1/26 (2006.01)
U.S. Cl. 713—300  [713/320; 713/323] 20 Claims
OG exemplary drawing
 
1. A method of signal transmission via a PCI-Express bus of a computer system, comprising:
transmitting a first command, where a central processing unit transmits the first command to a second system chip;
snooping the first command, where a first system chip snoops the system command transmitted from the central processing unit to the second system chip;
transmitting a second command, where the central processing unit transmits the second command to the second system chip;
blocking the second command, where the first system chip blocks the second command;
executing the second command by the first system chip;
passing the second command to the second system chip; and
executing the second command by the second system chip.