Datasheet

Introduction
30 Intel® Xeon® Processor D-1500 Product Family
Datasheet - Volume 1 of 4: Integrated Platform Controller Hub
March 2015
Enhanced Power Management
Intel® Xeon® Processor D-1500 Product Family’s power management functions fully
support the Advanced Configuration and Power Interface (ACPI) Specification, Revision
4.0a, and include enhanced clock control and various low-power (suspend) states (such
as Suspend-to-RAM and Suspend-to-Disk). A hardware-based thermal management
circuit permits software-independent entrance to low-power states.
Manageability
Intel® Xeon® Processor D-1500 Product Family integrates several functions designed
to manage the system and lower the total cost of ownership (TCO) of the system.
These system management functions are designed to report errors, diagnose the
system, and recover from system lockups without the aid of an external
microcontroller.
• TCO Timer. Intel® Xeon® Processor D-1500 Product Family’s integrated
programmable TCO timer is used to detect system locks. The first expiration of the
timer generates an SMI# that the system can use to recover from a software lock.
The second expiration of the timer causes a system reset to recover from a
hardware lock.
• Processor Present Indicator. Intel® Xeon® Processor D-1500 Product Family
looks for the processor to fetch the first instruction after reset. If the processor
does not fetch the first instruction, Intel® Xeon® Processor D-1500 Product Family
will reboot the system.
• ECC Error Reporting. When detecting an ECC error, the host controller has the
ability to send one of several messages to Intel® Xeon® Processor D-1500 Product
Family. The host controller can instruct Intel® Xeon® Processor D-1500 Product
Family to generate either an SMI#, NMI, SERR#, or TCO interrupt.
• Function Disable. Intel® Xeon® Processor D-1500 Product Family provides the
ability to disable the following integrated functions: LAN, USB, LPC, SATA, PCI
Express* or SMBus. Once disabled, these functions no longer decode I/O, memory,
or PCI configuration space. Also, no interrupts or power management events are
generated from the disabled functions.
• Intruder Detect. Intel® Xeon® Processor D-1500 Product Family provides an
input signal (INTRUDER#) that can be used to inform the system in the event of
the case being opened. Intel® Xeon® Processor D-1500 Product Family can
be programmed to generate an SMI# or TCO interrupt due to an active
INTRUDER# signal.
System Management Bus (SMBus 2.0)
Intel® Xeon® Processor D-1500 Product Family contains an SMBus Host interface that
allows the processor to communicate with SMBus slaves. This interface is compatible
with most I
2
C devices. Special I
2
C commands are implemented.
Intel® Xeon® Processor D-1500 Product Family SMBus host controller provides a
mechanism for the processor to initiate communications with SMBus peripherals
(slaves). Also, Intel® Xeon® Processor D-1500 Product Family supports slave
functionality, including the Host Notify protocol. Hence, the host controller supports
eight command protocols of the SMBus interface (see System Management Bus
(SMBus) Specification, version 2.0): Quick Command, Send Byte, Receive Byte, Write
Byte/Word, Read Byte/Word, Process Call, Block Read/Write, and Host Notify.