307013-003 Datasheet, PDF (36/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

„ SMBus
— Flexible SMBus/SMLink architecture to optimize
for ASF
— Provides independent manageability bus through
SMLink interface
— Supports SMBus 2.0 Specification
— Host interface allows processor to communicate
via SMBus
— Slave interface allows an internal or external
Microcontroller to access system resources
— Compatible with most two-wire components that
are also I²C compatible
„ High Precision Event Timers
— Advanced operating system interrupt scheduling
„ Timers Based on 82C54
— System timer, Refresh request, Speaker tone
output
„ Real-Time Clock
— 256-byte battery-backed CMOS RAM
— Integrated oscillator components
— Lower Power DC/DC Converter implementation
„ System TCO Reduction Circuits
— Timers to generate SMI# and Reset upon
detection of system hang
— Timers to detect improper processor reset
— Integrated processor frequency strap logic
— Supports ability to disable external devices
„ Interrupt Controller
— Supports up to eight PCI interrupt pins
— Supports PCI 2.3 Message Signaled Interrupts
— Two cascaded 82C59 with 15 interrupts
— Integrated I/O APIC capability with 24 interrupts
— Supports Processor System Bus interrupt
delivery
„ 1.05 V operation with 1.5 V and 3.3 V I/O
— 5 V tolerant buffers on IDE, PCI, USB and
Legacy signals
„ NEW: 1.05 V Core Voltage
„ Integrated 1.05 V Voltage Regulator (INTVR) for
the Suspend and LAN wells (Desktop and Mobile
Only)
„ Firmware Hub I/F supports BIOS Memory size up
to 8 MBytes (Desktop and Mobile Only)
„ NEW: Serial Peripheral Interface (SPI) for Serial
and Shared Flash (Desktop and Mobile Only)
„ Low Pin Count (LPC) I/F
— Supports two Master/DMA devices.
— Support for Security Device (Trusted Platform
Module) connected to LPC.
„ GPIO
— TTL, Open-Drain, Inversion
„ NEW: Package 31 mm x 31 mm 652 mBGA
(Desktop and Mobile Only)
„ New: Package 15 mm x 15 mm, 452 balls (Ultra
Mobile only)
Desktop Configuration
DMI
(To (G)MCH)
Intel^® PCI Express
Gigabit Ethernet
USB 2.0
(Supports 8 USB ports)
IDE
SATA (4 ports)
AC ’97/Intel® High
Definition Audio
Codec(s)
PCI Express* x1
Intel^®
ICH7
Power Management
Clock Generators
System Management
(TCO)
SMBus 2.0/I²C
PCI Bus
SPI BIOS
LAN Connect
GPIO
Other ASICs
(Optional)
LPC I/F
S
S
L
O
...
L
O
T
T
Super I/O
TPM
(Optional)
Firmware Hub
36
Intel ^® ICH7 Family Datasheet