| 摘要 |
A system reset arrangement (12) resides alternately in an enabled condition or a disabled condition. When the system reset arrangement (12) is in the disabled condition, a switching input provided through a switch (11) does not effect a system reset. However, in the enabled condition, the switching input through the switch (11) causes system reset arrangement (12) to produce a reset output which resets the system. A reset disable arrangement (14) maintains the system reset arrangement (12) in the disabled condition in response to a disable input. When the disable input is removed, reset disable arrangement (14) maintains system reset arrangement (12) in the enabled condition. An interrupt output (15) develops an interrupt signal in response to the switching input. This interrupt signal prompts an interrupt controller (16) to issue a desired system management command to be processed by the system processor.This command may place the system in a standby mode and, in any event, removes the disable input, causing the reset disable arrangement (14) to maintain the system reset arrangement (12) in an enabled condition. Thus, activating the switch (11) while the computer is in a normal operational state causes the computer to go into a standby state; and, activating the switch (11) while the computer is in the standby state causes the computer to reset back to the normal operational state.
|
