MPCBL0050N02Q Intel, MPCBL0050N02Q Datasheet - Page 121

• Manufacturer Part Number: MPCBL0050N02Q
• Manufacturer: Intel

Specifications of MPCBL0050N02Q

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Hardware Management—MPCBL0050
Table 39.
5.11
Note:
5.12
September 2007
Order Number: 318146-001
Hot Swap LED
ACPI
ACPI gives the operating system direct control over the power management and Plug
and Play functions of a computer. The use of ACPI with the MPCBL0050 SBC requires an
operating system that provides ACPI support. ACPI features include:
For ACPI enabled operating systems, the IPMC is configured such that ACPI mode is
enabled via the BIOS ACPI Source Language (ASL) code. When ACPI shut down request
is received, the IPMC will pulse the ICH power button for 100ms which will start
shutting down the OS. Once OS is shutdown, ICH will assert the SLP_S5# (sleep S5)
signal. If the OS fails to shutdown after 3 minutes (indicated by the fact that the
SLP_S5# has not been asserted), the IPMC PICMG State Machine will timeout and force
the payload off with a 4-second power button override to the ICH.
For non-ACPI enabled operating systems, the IPMC will perform a 4-second power
button override to the ICH.
SLP_S5# is one of the power management signal from ICH. The signal is used to shut
power off to all non-critical systems when in the S5 (Soft Off) state.
The IPMC management features are designed to work in conjunction with the ACPI EFI
BIOS and hardware features of the baseboard. The following subsections illustrate
these capabilities.
Reset Types
The following topics describe the two types of reset requests and the boot relationships
among them. The two types of reset requests available on the MPCBL0050 are:
A hard reset request occurs whenever the processor Reset line is asserted, then
deasserted. A soft reset occurs whenever an assertion occurs on the processor Init line.
When a soft reset request occurs, the BIOS determines whether to initiate a warm boot
while leaving main memory intact or a cold boot that clears memory.
summarizes hard and soft reset parameters.
Off
Blinking Blue
Solid Blue
• Plug and Play (including bus and device enumeration) and APM support (normally
• Power management control of individual devices, add-in boards (some
• A soft-off feature that enables the operating system to power off the computer
• Support for an IPMC firmware command switch
• Hard reset request (always results in a cold boot)
• Soft reset request (can result in either a warm or cold boot)
LED Status
contained in the BIOS)
AdvancedMC cards may require an ACPI-aware driver), and hard disk drives
Normal (active) status
Preparing for removal/insertion: Long blink indicates activation is in progress, short blink
when deactivation is in progress.
Ready for hot swap
Intel NetStructure
Meaning
®
MPCBL0050 Single Board Computer
Technical Product Specification
Table 40
121