Specifications

Chapter 3 Hardware
ReadyBoard 800 Reference Manual 57
♦ Normally, to enter this sleep state, the ReadyBoard 800 must be fully powered on (S0) and
the OS transitions the ReadyBoard into this standby state (S1) under user control.
♦ To exit this sleep state, typically the Power-On switch is used to wake up the ReadyBoard
800 to restore full operation, including the Power On LED. Typically, pressing the Power-On
switch for less than 4 seconds (default) will restore full operation.
• 3rd state is a hibernate or suspend-to-disk state (S4).
In this state there are no internal operations taking placing, except for the Power On LED and the
internal RTC. This includes no activity for the CPU, CD-ROM, or hard disk drives. The
ReadyBoard 800 appears to be off, except for the Power On LED. Your system will take longer
to wake-up from this sleep state, however, since your data is saved to the disk, it is more secure
and should not be lost in the event of a power failure.
♦ To enter a hibernate or suspend-to-disk state, the ReadyBoard 800 must be fully powered on
and the OS transitions the ReadyBoard 800 into this sleep state (S4) under user control.
♦ To exit this sleep state, typically pressing the Power-On switch for less than 4 seconds
(default) will restore full operation.
• 4th state is the normal power Off or shutdown (S5).
All activity stops except the Power On LED and the internal RTC clock, unless the power cord is
removed from the AC power source.
♦ To go to a fully powered down state, the ReadyBoard 800 must either be powered On, or in a
sleep state, and then the Power-On switch is pressed for more than 4-to-6 seconds.
♦ To go to a fully powered up state, press the Power-On switch for less than 4 seconds (default)
and full operation is restored.
The OS may provide additional programming features to change the activation time for each state, and to
shutdown or transition the ReadyBoard 800 at certain times, which depends on how the OS interface is
programmed. Refer to the OS vender’s documentation for power management under the ACPI standard.
NOTE Some operating systems use the keyboard, mouse, Wake-on-Ring (serial
port), and Wake-on-LAN (Ethernet port) as an activity to wake up the
system from a sleep state. Refer to Table 3-27 for the conditions the
ReadyBoard 800 currently supports for wake up activity.
Wake Up Activities
The wake up events listed in Table 3-27 can be used to wake up the ReadyBoard 800 from any of the
states mentioned.
Table 3-27. Wake Up Activities and Conditions
Signal/Device Condition
Power Switch If the Power-On switch is pressed for more than 4-to-6 seconds, the system
will wake up from any of the sleep states.
LAN Ports (2)
If Resume On LAN is [Enabled], then the system will wake from one of the
sleep states through direct addressing, magic packets, or link status changes.
PS/2 Keyboard &
Mouse
If you use a PS/2 keyboard or mouse, any activity from the keyboard or
mouse could wake the system.
USB If you use a USB keyboard or mouse instead of a PS/2 device, the USB
device could wake the system.
Serial Ports (3)
If Resume On Ring is [Enabled], then three of the four Serial ports can wake
the system.