AMD SP5100, Data Book, Page: 8 / 90

AMD SP5100 Databook 44409 Rev. 1.70 Oct 10
8
Introduction
1 Introduction
AMD’s SP5100 is a Southbridge that integrates key I/O, communications, and other features required in a
state-of-the-art server platform into a single device. It is specifically designed to operate with AMD’s
server Northbridges.
1.1 Features of the SP5100
CPU Interface

Supports AMD Opteron
TM
server class
processors, including:

Socket F processors (“Barcelona,”
Shanghai,” and “Istanbul” series
only)

Socket G34 processors

Socket C32 processors
A-Link Express II interface to AMD
Northbridges

1 / 2 / 4-lane A-Link Express II interface

Dynamic detection of lane configuration

High data transfer bandwidth (up to 2.5 Gb/s
/ Lane)
PCI Host Bus Controller

Supports PCI bus at 33 MHz

PCI Rev. 2.3 specification support

Supports up to 6 bus master devices

Supports 40-bit addressing

Interrupt steering supported for plug-n-play
devices

BIOS / Hardware support to hide PCI device

Spread spectrum support
USB Controllers

5 OHCI and 2 EHCI Host controllers to
supports 12 USB 2.0 ports and 2 dedicated
USB 1.1 ports

ACPI S1 ~ S5 supported

Legacy Keyboard/Mouse support

USB debug port

Port disable supported with individual control
SMBus Controller

SMBus Rev. 2.0 compliant

Support SMBALERT # signal / GPIO
Interrupt Controller

Supports IOAPIC/X-IO APIC mode for 24
channels of interrupts

Supports 8259 legacy mode for 15 interrupts

Supports programmable level/edge
triggering on each channels

Supports serial interrupt on quiet and
continuous modes
DMA Controller

Two cascaded 8237 DMA controllers

Supports PC/PCI DMA

Supports LPC DMA

Supports type F DMA
LPC Host Bus Controller

Supports LPC based super I/O and flash
devices

Two Master/DMA devices supported

Support for TPM version 1.1/1.2 devices

Supports SPI devices
SATA Controller

Supports six SATA ports with transfer rates
up to 3 Gb/s

Complies with SATA 2.5 specification