公开(公告)号：DE69720594D1

公开(公告)日：2003-05-15

申请号：DE69720594

申请日：1997-06-04

Applicant: COMPAQ COMPUTER CORP

Inventor： GOODRUM ALAN L ,  CULLEY PAUL R ,  CHOW RAYMOND Y L ,  BASILE BARRY S ,  WALDORF RICHARD O ,  COOK PAMELA M ,  MAR CLARENCE Y

IPC: G06F1/26 ,  G06F1/18 ,  G06F1/24 ,  G06F13/40

Abstract: A method for powering up a removable circuit card when it is inserted into a card slot of a computer system includes providing power and a clock signal to the circuit card. A communication link is electrically coupled to the circuit card after both the power and the clock signal are provided to the circuit card.

公开(公告)号：DE69720594T2

公开(公告)日：2004-01-08

申请号：DE69720594

申请日：1997-06-04

Applicant: COMPAQ COMPUTER CORP

Inventor： GOODRUM ALAN L ,  CULLEY PAUL R ,  CHOW RAYMOND Y L ,  BASILE BARRY S ,  WALDORF RICHARD O ,  COOK PAMELA M ,  MAR CLARENCE Y

IPC: G06F1/26 ,  G06F1/18 ,  G06F1/24 ,  G06F13/40

Abstract: A method for powering up a removable circuit card when it is inserted into a card slot of a computer system includes providing power and a clock signal to the circuit card. A communication link is electrically coupled to the circuit card after both the power and the clock signal are provided to the circuit card.

公开(公告)号：JPH1083231A

公开(公告)日：1998-03-31

申请号：JP16202497

申请日：1997-06-05

Applicant: COMPAQ COMPUTER CORP

Inventor： GOODRUM ALAN L ,  CULLEY PAUL R ,  CHOW RAYMOND Y L ,  BASILE BARRY S ,  WALDORF RICHARD O ,  COOK PAMELA M ,  MAR CLARENCE Y

IPC: G06F1/26 ,  G06F1/18 ,  G06F1/24 ,  G06F13/40

Abstract: PROBLEM TO BE SOLVED: To stabilize the operation of the card by backing up the card, supplying a clock signal to the card, and then electrically coupling a communication link with the card when the card is inserted into a card slot of a computer system. SOLUTION: Each extension box 30 has six hot plug slots 36, which electrically connects extension cards. To one slot 34 of the extension box, a card which has a bridge chip is connected. Each hot plug slot 36 has a switch circuit 41, and consequently the slot 36 and a PCI bus are connected and disconnected. Then electric power and clock signals are supplied to the circuit card and after the electric power and clock signals are both supplied to the circuit card, the communication link is electrically coupled with the circuit card. Here, delay is so given preferably that the electric power of the circuit card becomes stable before the electric coupling and further the circuit on the circuit card synchronizes with the clock signal before the electric coupling.