12. Reference Material -------------------------------------------------------------------------------------------------
211
214
259
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1. Hardware Engineering Specification
1.1 Introduction
The E-Note P4N266A model motherboard would support the Desktop P4 processor (Northwood) at 2.0/2.2 GHz
and the Celeron low-profile, lidless FC-PGA2 (Flip-chip Pin Grid Array)package on socket 478.
This system is based on PCI architecture and is fully compatible with IBM PC/AT specification, which has
standard hardware peripheral interface and support Intel mobile Pentium 4-M and Desktop Pentium 4 family. The
power management complies with Advanced Configuration and Power Interface (ACPI) 1.0b. System also provides
icon LEDs to display system status, such as AC Power / Battery Power indicator and Battery charging status,
CDROM, HDD, NUM LOCK, CAP LOCK, SCROLL LOCK. It also equipped with 4 USB2.0 ports and 1 swap
module (Floppy or card reader or second HDD), one IEEE1394, one PC Card slots, LAN 10/100TX, MDC modem
and AC97 3D stereo audio functions.
The memory subsystem supports two 184pin DIMM socket for upgrading up to 1GB of DDR-SDRAM with
512Mbit DDR-SDRAM technology using PC-100 DDR-SDAM SODIMM modules with SPD. The DDR-SDRAM
controller supports standard PC2100 and PC1600 Synchronous DDR-SDRAM (Double-data-rate SDRAM) .
The VIA VT8703 /P4N266 /Twister-P4 (Apollo ProSavage DDR P4N266) North Bridge Chipset integrated with
S3 Savage4 graphics accelerator and S3’s flat panel interface into a single 664 BGA package. The Twister-P4 brings
mainstream graphics performance to the Value PC with leading-edge 2D, 3D and DVD video acceleration into a
cost effective package.
The Twister-P4 SMA(share memory architecture) system controller also provides superior performance between
the CPU, DRAM, and PCI bus with pipelined, burst, and concurrent operation.
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The 376-pin VT8233 BGA south bridge supports four levels (double words) of line buffers, type F DMA transfers
and delay transaction to allow efficient PCI bus utilization and PCI-2.1 compliant. The VT8233 also includes an
keyboard controller with PS2 mouse support , integrated DS12885 style real time clock with extended 256 byte
CMOS RAM, integrated bus master mode enhanced IDE controller with full scatter / gather capability and
extension to UltraDMA-33/66/100 for 33/66/100 MB/sec transfer rate, integrated six USB interface with root hub
and two function ports with built-in physical layer transceivers, Distributed DMA support, integrated AC-97 link for
basic audio and HSP based modem functions, integrated hardware monitoring and OnNow / ACPI compliant
advanced configuration and power management interface. VT8233 also integrates a 10/100 Mbit Fast Ethernet
Controller / MAC (Media Access Controller). The LAN controller uses an MII (Media Independent Interface)
connection to support an external 10/100 Mbit PHY for Ethernet.
The ENE CB710 CARDBUS controller supports one PCMCIA or CARDBUS interfaces.
The VIA 6306 controller supports three port multimedia feature.
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To provide for the increasing number of multimedia applications, the AC97 CODEC VIA 1612A is integrated
onto the motherboard which contain 3D audio output.
A full set of software drivers and utilities are available to allow advanced operating systems such as Windows Me
and Windows 2000 and Windows XP to take full advantage of the hardware capabilities such as bus mastering IDE,
Windows 95-ready Plug & Play, Advanced Power Management (APM) and Advance configuration and power
interface (ACPI).
Following chapters will have more detail description for each individual sub-systems and functions.
512KB for Pentium 4 on Die
128KB for Celeron on Die
512KB Flash EPROM
Insyde -Includes System BIOS , VGA BIOS, and plug & Play capability, ACPI
-Two 184 pin DDR-DIMM socket for memory expansion
-Support PC2100 / PC1600 with SPD
Integrate S3 Savage8
Support MPEG-2 30fps, 8.5MB/s capability
1024x768 (24bit color by dithering) XGA. CMOS 18+18 bits interface
and 1600x1400 (24bit color) resolution for CRT
- Support LCD/CRT simultaneous display only
8/16/32MB share system SDRAM, default 8Mbyte
ICS 950902
REALTEK RTM360-519R
Cardbus Controller: ENE CB710
one type II slots CardBus / no ZV port support/ no wakeup at S3
Power switch: TI TPS221 or ENE CP-2211
Integrate in CB710
Support Smart Media, SD/MMC and Memory Sticker 3.3v only
USB 2.0 Controller integrate in VT8235
IEEE1394 OHCI Controller: VIA VT6306
No wakeup at S3
Not support bridge mode when system off
AC97 CODEC: Realtek ALC202
Power Amplifier: TI TPA1517 3W+3W
ASKey 56Kbps(V.90, worldwide) MDC Modem
VIA VT6103 10baseT/100 baseT – Ethernet PHY
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1.2.1 CPU-Intel Desktop Pentium4(Northwood) Processor In FC-PGA478 Package
The Intel Pentium 4 processor with 512-KB L2 cache on 0.13 micron process is a follow on to the Pentium 4
processor in the 478-pin package with Intel Net Burst. microarchitecture. The Pentium 4 processor with 512-KB L2
cache on 0.13 micron process utilizes Flip-Chip Pin Grid Array (FC-PGA2) package technology, and plugs into a
478-pin surface mount, Zero Insertion Force (ZIF) socket, referred to as the mPGA478B socket.
The Pentium 4 processor with 512-KB L2 cache on 0.13 micron process, like its predecessor, the Pentium 4
processor in the 478-pin package, is based on the same Intel 32-bit microarchitecture and maintains the tradition of
Compatibility with IA-32 software. In this document, the Pentium 4 processor with 512-KB L2 cache on 0.13 micron
process will be referred to as the “Pentium 4 processor with 512-KB L2 cache on 0.13 micron process,” or simply
“the processor.”
The Intel NetBurst microarchitecture features include hyper pipelined technology, a rapid execution engine, a 400MHz or a 533-MHz system bus, and an execution trace cache. The hyper pipelined technology doubles the pipeline
depth in the Pentium 4 processor with 512-KB L2 cache on 0.13 micron process, allowing the processor to reach
much higher core frequencies. The rapid execution engine allows the two integer ALUs in the processor to run at
twice the core frequency, which allows many integer instructions to execute in 1/2 clock tick. The 400-MHz or 533MHz system bus is a quad-pumped bus running off a 100-MHz or a 133-MHz system clock making 3.2 Gbytes/sec
and 4.3 Gbytes/sec data transfer rates possible. The execution trace cache is a first-level cache that stores
approximately 12-k decoded micro-operations, which removes the instruction decoding logic from the main
execution path, thereby increasing performance. Additional features within the Intel NetBurst microarchitecture
include advanced dynamic execution, advanced transfer cache, enhanced floating point and multi-media unit, and
Streaming SIMD Extensions 2 (SSE2). The advanced dynamic execution improves speculative execution and branch
prediction internal to the processor. The advanced transfer cache is a 512 KB, on-die level 2 (L2) cache.
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A new floating point and multi media unit has been implemented which provides superior performance for multimedia and mathematically intensive applications. Finally, SSE2 adds 144 new instructions for double-precision
floating point, SIMD integer, and memory management. Power management capabilities such as AutoHALT, StopGrant, Sleep, and Deep Sleep have been retained. The Streaming SIMD Extensions 2 (SSE2) enable break-through
levels of performance in multimedia applications including 3-D graphics, video decoding/encoding, and speech
recognition. The new packed double-precision floating-point instructions enhance performance for applications that
require greater range and precision, including scientific and engineering applications and advanced 3-D geometry
techniques, such as ray tracing.
The Pentium 4 processor with 512-KB L2 cache on 0.13 micron process Intel Net Burst microarchitecture system
bus utilizes a split-transaction, deferred reply protocol like the Pentium 4 processor. This system bus is not
compatible with the P6 processor family bus. The Intel Net Burst microarchitecture system bus uses SourceSynchronous Transfer (SST) of address and data to improve performance by transferring data four times per bus
clock (4X data transfer rate, as in AGP 4X). Along with the 4X data bus, the address bus can deliver addresses two
times per bus clock and is referred to as a “double-clocked” or 2X address bus. Working together, the 4X data bus
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and 2X address bus provide a data bus bandwidth of up to 4.3 G byte s/second.
Intel will enable support components for the Pentium 4 processor with 512-KB L2 cache on 0.13 micron process
including heat sinks, heat sink retention mechanisms, and sockets. Manufacturability is a high priority; hence,
mechanical assembly can be completed from the top of the motherboard and should not require any special tooling.
The processor system bus uses a variant of GTL+signalling technology called Assisted Gunning Transceiver Logic
(AGTL+) signal technology.
Enhanced floating point and multimedia unit for enhanced video, audio, encryption, and 3D performance
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Power Management capabilities
----System Management mode
----Multiple low-power states
Optimized for 32-bit applications running on advanced 32-bit operating systems
8-way cache associativity provides improved cache hit rate on load/store operations.
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Table 1.Voltage identification Definition for Desktop Northwood
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1.2.2 CPU – Intel Celeron Processor In Micro-PGA 478 Package
The Intel® Celeron® processor in the 478-pin package utilizes Flip-Chip Pin Grid Array (FC-PGA2) package
technology, and plugs into a 478-pin surface mount, Zero Insertion Force (ZIF) socket, referred to as the
mPGA478B socket. The Celeron processor in the 478-pin package maintains the tradition of compatibility with IA32 software. The Celeron processor in the 478-pin package is designed for uni-processor based Value PC desktop
systems. Features of processor include hyper pipelined technology, a 400 MHz system bus, and an execution trace
cache. The 400 MHz system bus is a quad-pumped bus that is clocked with a 100 MHz system clock, making 3.2
GB/sec data transfer rates possible. The execution trace cache is a first level cache that stores approximately 12k
decoded micro-operations, which removes the decoder from the main execution path. Additional features include
advanced dynamic execution, advanced transfer cache, enhanced floating point and multi-media unit, and Streaming
SIMD Extensions 2 (SSE2). The advanced dynamic execution improves speculative execution and branch prediction
internal to the processor. The advanced transfer cache is a 128 KB, on-die level 2 (L2) cache. The floating point and
multimedia units have 128 bit wide registers with a separate register for data movement. Finally, SSE2 support
includes instructions for double-precision floating point, SIMD integer, and memory management. Power
management capabilities such as AutoHALT, Stop-Grant, Sleep, and Deep Sleep have also been retained. The
Celeron processor in the 478-pin package 400 MHz system bus utilizes a split-transaction, deferred reply protocol.
This system bus is not compatible with the P6 processor family bus. The 400 MHz system bus uses SourceSynchronous Transfer (SST) of address and data to improve throughput by transferring data four times per bus clock
(4X data transfer rate, as in AGP 4X). Along with the 4X data bus, the address bus can deliver addresses two times
per bus clock, and is referred to as a “double-clocked” or 2X address bus. Working together, the 4X data bus and 2X
address bus provide a data bus bandwidth of up to 3.2 GB/second. Intel will be enabling support components for the
Celeron processor in the 478-pin package including a heatsink, heat sink retention mechanism, and socket.
Manufacturability is a high priority; hence mechanical assembly can be completed from the top of the motherboard
and should not require any special tooling. The processor system bus uses a variant of GTL+ signaling technology
called Assisted Gunning Transceiver Logic (AGTL+) signalling technology.
Optimized for 32-bit applications running on advanced 32-bit operating systems
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1.2.3 VIA VT8703 (P4N266 Twister P4) North Bridge with S3 ProSavage 8 AGPx4
The ProSavageDDR P4N266 (VT8703 “Twister P4” North Bridge plus VT8233 South Bridge) is a high
performance, cost-effective and energy efficient SMA chip set for the implementation of mobile personal computer
systems with 400 MHz (100 MHz QDR) CPU host bus (“Front Side Bus”) based on 64-bit Intel Pentium-4 superscalar processors. This data sheet describes the VT8703 North Bridge portion of the P4N266 chipset (except for
detailed register descriptions for the integrated graphics controller which are described in a separate document
published by S3 Graphics). The VT8235 South Bridge is described in a separate data sheet.
Figure . ProSavageDDR P4N266 Chipset System Block Diagram
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The P4N266 chip set consists of the VT8703 North Bridge (664 pin BGA) and the VT8233 V-Link South Bridge
(376 pin BGA). The VT8703 (which may also be referred to as a “Host System Controller”) integrates VIA’s
VT8653 Apollo Pro266T system controller with CPU bus extensions to support Pentium 4, S3 Graphics’ Savage4
2D/3D graphics accelerator and S3 Graphics’ flat panel monitor and TV out interfaces into a single 664 BGA
package. The VT8703 provides superior performance between the CPU, DRAM, V-Link bus and internal or external
AGP 4x graphics controller bus with pipelined, burst, and concurrent operation. The VT8233 (which also may be
referred to as a “V-Link Client Controller”) is a highly integrated PCI / LPC controller. Its internal bus structure is
based on a 66 MHz PCI bus that provides 2x bandwidth compared to previous generation PCI bridge chips. The
VT8233 also provides a 266MB/sec bandwidth Host/Client V-Link interface with V-Link-PCI and V-Link-LPC
controllers. It supports five PCI slots of arbitration and decoding for all integrated functions and LPC bus.
The VT8703 supports eight banks of SDR / DDR SDRAMs up to 4 GB. The DRAM controller supports PC2100 /
PC1600 Double-Data-Rated (DDR) SDRAM but can also support standard PC133 / PC100 Synchronous DRAM
(SDR SDRAM). The DDR / SDR DRAM interface allows zero wait state bursting between the DRAM and the data
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buffers at 100 / 133 MHz. The different banks of DRAM can be composed of an arbitrary mixture of 1M / 2M / 4M /
8M / 16M / 32M / 64M x 8/16/32 DRAMs. The DRAM controller also supports optional ECC (single-bit error
correction and multi-bit detection) or EC (error checking) capability. The DRAM controller can run either
synchronous or pseudo-synchronous with the host CPU bus.
The VT8703 host system controller supports a high speed 8-bit 66 MHz Quad Data Transfer interconnect (V-Link)
to the VT8233 South Bridge. The chip also contains a built-in bus-to-bus bridge to allow simultaneous concurrent
operations on each bus. Five levels (double words) of post write buffers are included to allow for concurrent CPU and
V-Link operation. For V-Link Host operation, forty-eight levels (double words) of post write buffers and sixteen
levels (double words) of prefetch buffers are included for concurrent V-Link bus and DRAM/cache accesses. When
combined the V-Link Host / Client controllers, it realizes a complete PCI sub-system and supports enhanced PCI bus
commands such as Memory-Read-Line, Memory-Read-Multiple and Memory- Write-Invalid commands to minimize
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snoop overhead. In addition, advanced features are supported such as snoop ahead, snoop filtering, L1 write-back
forward to PCI master, and L1 write-back merged with PCI post write buffers to minimize PCI master read latency
and DRAM utilization. Delay transaction and read caching mechanisms are also implemented for further
improvement of overall system performance.
The P4N266 North Bridge also integrates S3 Graphics’ Savage4 graphics accelerator into a single chip. The
P4N266 brings mainstream graphics performance to the Value PC with leading-edge 2D, 3D and DVD video
acceleration into a cost effective package. Based on its capabilities, the P4N266 is an ideal solution for the consumer,
corporate mobile users and entry level professionals.
The industry’s first integrated Pentium 4 AGP 4x solution to support DDR memory, the P4N266 combines AGP
4x performance with Microsoft DirectX texture compression and massive 2Kx2K textures to deliver unprecedented
3D performance and image quality for the Value PC mobile market. For sophisticated power management, the
VT8703 provides independent clock stop control for the CPU / SDRAM and AGP bus plus Dynamic CKE control
for powering down of the SDRAM. A separate suspend-well plane is implemented for the SDRAM control signals
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for Suspend-to-DRAM operation. Coupled with the VT8233 south bridge chip, a complete power conscious PC
main board can be implemented with no external TTLs.
High-Performance 3D Accelerator
Featuring a new super-pipelined 128-bit engine, the P4N266 chipset utilizes a single cycle architecture that
provides high performance along with superior image quality. Several new features enhance the 3D architecture,
including single-pass multitexturing, anisotropic filtering, and an 8-bit stencil buffer. The P4N266 also offers the
industry’s only simultaneous usage of single-pass multitexturing and single-cycle trilinear filtering – enabling
stunning image quality without performance loss. The P4N266 further enhances image quality with true 32-bit color
rendering throughout the 3D pipeline to produce more vivid and realistic images. The P4N266’s advanced triangle
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setup engine provides industry leading 3D performance for a realistic user experience in games and other
interactive 3D applications. The 3D engine is optimized for AGP texturing from system memory.
128-bit 2D Graphics Engine
The P4N266’s advanced 128-bit 2D graphics engine delivers high-speed 2D acceleration for productivity
applications. Several enhancements have been made to the 2D architecture to optimize SMA performance and to
provide acceleration in all color depths.
DVD Playback and Video Conferencing
The P4N266 provides the ideal architecture for high quality MPEG-2 based DVD applications and video
conferencing. For DVD playback, the P4N266’s video accelerator offloads the CPU by performing the planar to
packed format conversion and motion compensation tasks, while its enhanced scaling algorithm delivers incredible
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full-screen video playback. For video conferencing, P4N266’s multiple video windows enable a cost effective
solution.
LCD, Flat Panel Monitor, and TV Out Support
The P4N266 supports a wide variety of DSTN or TFT panels through a 36-bit interface. This includes support for
VGA, SVGA, XGA, SXGA+, UXGA, and UXGA+ TFT color panels with 9-bit, 12-bit, 18-bit (both 1 pixel/clock
and 2 pixels/clock), 24-bit and 36-bit interfaces. Enhanced STN hardware with 256 gray scale support and advanced
frame rate control to provide up to 16.7 million colors. All resolutions are supported up to 1280x1024. In addition,
the panel interface can be configured to connect to external LVDS transmitters to support 18-bit, 24-bit, or 2x18-bit
TFT single-channel or dual channel LVDS panels.
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An alternative to the 36-bit panel interface is a 12-bit interface to external TMDS encoders. This interface is Digital
Visual Interface (DVI) 1.0 compliant. This interface can alternatively be configured to drive an external TV encoder
chip for display output to a standard television set.
High Screen Resolution CRT Support
System Memory
Frame Buffer Size
16/32MB8MBResolutions
Supported
√√640x480/16/32
√√800x600/16/32
√√1024x768/16/32
√√1280x1024x8
Table . Supported CRT screen Resolutions
√√1280x1024x16
√√1280x1024x32
√√1620x1200x8
√√1620x1200x16
√√1620x1200x32
√√1920x1440x8
√√1920x1440x16
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LCD and CRT Screen Resolution Support (1)
CRT Refresh
2
Reso lu tion
320x200
320x240
400x300
512x384
640x400
640x480
720x480
720x576
Bpp
Vesa Mode
8 13
16 10E
32 10F
8 131
16 133
32 134
8 141
16 143
32 144
8 151
16 153
32 154
8 100
16
11D
32 11E
8 101
16 111
32 112
8 171
16 173
32 175
8 17C
16 17E
32 17F
LCD XGA
LCD SXGA**
LCD SXGA+
LCD UXGA**
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
CE CE CE CE
C C C C
C C C C
C C C C
C C C C
C C C C
C C C C
60
√
70
72
75
85
√
√
100
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√ √ √
√ √ √
√ √ √
√
√
√
√
√
√
√ √
ME, W2k 2D
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
D/OGL
DOS
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√ √ √ √
√ √ √ √
√ √ √ √
4
√ √
√ √
√ √
√ √
√ √
√
4
√
4
√
4
√
4
√
4
√
Basic OS
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LCD and CRT Screen Resolution Support (2)
CRT Refresh
Resolution
1024x768
1280x1024
1400x1050
1600x1200
** Evaluation performed on CRT until panel availability
Not supported at any refresh rate
Supported with 8 MB, or higher video memory for Logo’d drivers
√
133Mhz Mclk Required for overlay
1
2 Overlay not supported
133Mhz Mclk Required for Mode and Overlay not supported
3
4 720 Desktop modes on NT4, Win2K and Whistler, not supported on Win9x,ME
Contrast, hue, saturation, brightness and gamma controls
Flat Panel Monitor / TV Output Support
Digital Visual Interface (DVI) 1.0 compliant for flat panel monitors
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Optional configuration of DVI outputs as digital output port for external NTSC/PAL TV encoder
Full Software Support
Drivers for major operating systems and APIs: Windows∨ 9x/ME, Windows NT 4.0, Windows 2000, Windows
XP, Direct3D⇔, DirectDraw⇔ and DirectShow⇔, and OpenGL⇔ ICD for Windows 9x/ME, NT, 2000, and XP
North Bridge/Chipset and Video BIOS support
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Advanced System Power Management Support
Power down of SDRAM (CKE)
VTT suspend power plane preserves memory data
Suspend-to-DRAM and self-refresh power down
Low-leakage I/O pads
ACPI 1.0B and PCI Bus Power Management 1.1 compliant
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1.2.4 VIA VT8235 BGA PCI-LPC/ISA South Bridge
The VT8235 South Bridge is a high integration, high performance, power-efficient, and high compatibility device
that supports Intel and non-Intel based processor to V-Link bus bridge functionality to make a complete Microsoft
PC2001-compliant PCI/LPC system. The VT8235 includes standard intelligent peripheral controllers:
a) IEEE 802.3 compliant 10 / 100 Mbps PCI bus master Ethernet MAC with standard MII interface to external
PHYceiver.
b) Master mode enhanced IDE controller with dual channel DMA engine and interlaced dual channel commands.
Dedicated FIFO coupled with scatter and gather master mode operation allows high performance transfers between
PCI and IDE devices. In addition to standard PIO and DMA mode operation, the VT8235 also supports the
UltraDMA-133, 100, 66, and 33 standards to allow reliable data transfer at rates up to 133 MB/sec. The IDE
controller is SFF-8038i v1.0 and Microsoft Windows-family compliant.
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c) Universal Serial Bus controller that is USB v2.0 / 1.1 and Universal HCI v2.0 / 1.1 compliant. The VT8235
includes three root hubs with six function ports with integrated physical layer transceivers. The USB controller
allows hot plug and play and isochronous peripherals to be inserted into the system with universal driver support.
The controller also implements legacy keyboard and mouse support so that legacy software can run transparently in
a non-USB-aware operating system environment.
d) Keyboard controller with PS2 mouse support.
e) Real Time Clock with 256 byte extended CMOS. In addition to the standard ISA RTC functionality, the
integrated RTC also includes the date alarm, century field, and other enhancements for compatibility with the ACPI
standard.
f) Notebook-class power management functionality compliant with ACPI and legacy APM requirements. Multiple
sleep states (power-on suspend, suspend-to-DRAM, and suspend-to-Disk) are supported with hardware automatic
wake-up. Additional functionality includes event monitoring, CPU clock throttling and stop (Intel processor
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protocol), PCI bus clock stop control, modular power, clock and leakage control, hardware-based and softwarebased event handling, general purpose I/O, chip select and external SMI.
i) Plug and Play controller that allows complete steerability of all PCI interrupts and internal interrupts / DMA
channels to any interrupt channel. One additional steerable interrupt channel is provided to allow plug and play and
reconfigurability of onboard peripherals for Windows family compliance.
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The VT8235 also enhances the functionality of the standard ISA peripherals. The integrated interrupt controller
supports both edge and level triggered interrupts channel by channel. The integrated DMA controller supports type F
DMA in addition to standard ISA DMA modes. Compliant with the PCI-2.2 specification, the VT8235 supports
delayed transactions and remote power management so that slower ISA peripherals do not block the traffic of the
PCI bus. Special circuitry is built in to allow concurrent operation without causing dead lock even in a PCI-to-PCI
bridge environment. The chip also includes eight levels(doublewords) of line buffers from the PCI bus to the ISA
bus to further enhance overall system performance.
CPU/CACHE
SIDEBAND SIGNALS
Init A20M#
INTR/NMI
SMI/StopClk
FERR/IGNNE
Sleep
BOOT ROM
ONBOARD
LPCI/O
LPC
RTC
CRYSTAL
CA
CD
NORTH BRIGE
VLINK
INTERFACE
VT8235
487 BGA
MA/COMMAND
MD
SMB
USB 2.0 PORTS 0-5
KEYBOARD/MOUSE
IDE PRIM ARY AND SECONDARY
AC97LINK
APIC
GPIO, POWER CONTROL RESET
MLL FAST ETHERNER INERFACE
SYSTEM MEMORY
DIMM MODULE ID
EXPANSION
CARDS
PCI
Figure . PC System Configuration Using the VT8233
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