US 8,572,360 B2 · Bootstrap system for dual central processing units

Abstract

A bootstrap system for dual central processing units includes a south bridge, a first central processing unit, a second central processing unit and a switch control module. The south bridge provides enable signals and reset signals, the first central processing unit provides an identification signal and an operation signal. The second central processing unit receives the enable signals and reset signals. The switch control module receives the identification signal and the operation signal from the first central processing unit to generate a corresponding switch command signal. The south bridge is selectably and electrically connected to the first central processing unit or the second central processing unit under the control of switch command signal.

Claims20

Dependent claims

A bootstrap system for dual central processing units, comprising:

a south bridge for providing enable signals and reset signals;
a first central processing unit for generating and providing an identification signal and an operation signal;
a second central processing unit electrically connected to the first central processing unit, the second central processing unit for receiving the enable signals and reset signals;
and
a switch control module electrically connected to the south bridge, wherein the switch control module receives the identification signal and the operation signal from the first central processing unit to generate a corresponding switch command signal, the south bridge is selectably and electrically connected to the first central processing unit or the second central processing unit under the control of the switch command signal.

2 more elements

A bootstrap system for dual central processing units, comprising:

a south bridge;
a first central processing unit for generating and providing an identification signal and an operation signal;
a second central processing unit electrically connected to the first central processing unit;
and
a switch control module electrically connected to the south bridge, wherein the switch control module comprises a first inverter, an AND gate chip and a switch, the first inverter comprises an input port and an output port, the AND gate chip comprises two input ports and an output port, and the input port of the first inverter is electrically connected to the first central processing unit to receive the identification signal, and the output port of the first inverter is electrically connected to an input port of the AND gate chip, the other input port of the AND gate chip is electrically connected to the first central processing unit to receive the operation signal, the output port of the AND gate chip outputs a switch command signal and is electrically connected to the switch, the switch is selectably and electrically connected to the first central processing unit or the second central processing unit.

2 more elements

Dependencies are inferred from the claim text.

Bootstrap system for dual central processing units

Life of this patent

Bootstrap system for dual central processing units

Life of this patent

Abstract

Claims20