Intel VC820 - Desktop Board Motherboard Support and Manuals
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Design Guide - Page 2
... for use of documents which may require licenses from published specifications. Intel may be obtained by:
calling 1-800-548-4725 or by visiting Intel's website at any intellectual property rights is provided in connection with Intel products. Intel® 820 Chipset Design Guide
Copies of Intel products including liability or warranties relating to fitness for such...
Design Guide - Page 6
... Configuration 2-46 Ground Plane Reference (Four Layer Motherboard 2-47 Hole Locations and Keepout Zones For Support Components 2-48 Grounding Pad Dimensions for the SECC2 GRM 2-48 TCK/TMS Implementation Example for DP Designs 2-52 Single Processor BREQ Strapping Requirements 2-52 Dual-Processor BREQ Strapping Requirements 2-53
vi
Intel® 820 Chipset Design Guide Figures...
Design Guide - Page 13
... for board designers. The motherboard functional units are
discussed. This appendix provides a set
of each chipset component remains the same for each appendix. Although these schematics cover specific designs, the core schematics for most Intel® 820 chipset platforms. The appendices provides a set of these options and components. About This Design Guide
This design guide is...
Design Guide - Page 14
.... The elimination of the AGP 2.0 Interface Specification and 400 MHz Direct RDRAM. Support of the high performance provided by the powerful Pentium III processor.
This removes many of the conflicts experienced when installing hardware and drivers into the I /O Controller Hub Datasheet
(Order Number: 290655)
• Intel® 82802AB/82802AC FirmWare Hub (FWH) Datasheet (Order Number: 290658...
Design Guide - Page 72
... be placed electrically in the unused slot when only one processor is valid for 133 MHz and 100 MHz 2-way processor/Intel® 820 chipset designs. For 2-way processor / Intel® 820 chipset designs, a termination card must be placed on the base board. Figure 2-36. Segment lengths are met. Intel® Pentium® III Processor Dual...
Design Guide - Page 90
..., unless adequate power supply is present on the motherboard. The PRI_DN# pin is disabled (by the motherboard, without software intervention.
- AUDIO_PWRDN: No connect on the motherboard. An AMR card using this standby/dual supply should be pull-down .
2-64
Intel®820 Chipset Design Guide Layout/Routing Guidelines
• Codec Implementation
- Therefore, the...
Design Guide - Page 91
Layout/Routing Guidelines
2.15 USB
The following are general guidelines for the USB interface:
• Unused USB ports should be terminated with 15 KΩ pulldown resistors on both P+/P- data
lines.
• 15 Ω series resistors should be placed as close as possible to the ICH (
Design Guide - Page 101
...driver edge rate, output drive current, and input drive current. AGTL+ buffers are not limited to): clock to develop the guidelines.
The results in the step-by -step methodology that Intel has successfully used to design high performance desktop...level and termination. Intel®820 Chipset Design Guide
3-1 Section 3.4, ...on page 3-4 discusses specific system guidelines.
Describes ...
Design Guide - Page 106
...'s Manual with...minimum (TCO_MIN)
-0.1
Setup time (TSU_MIN)
1.2
Hold time (THOLD)
0.8
Intel 82820 MCH
3.6 0.5...Intel®820 Chipset Design Guide Clock skew and clock jitter values are met. Intel...board... of driver and receiver...set to 65 Ω ±15%.
Advanced System Bus Design
There are subject to change. Note that assumed values for Example Calculations1,2
IC Parameters
Intel...
Design Guide - Page 110
...Intel strongly recommends running uncoupled simulations using the Z0 of the required bus frequency. Also stay within the solution space set...
3-10
Intel®820 Chipset Design Guide The Intel® Pentium...length of full package models for CLKSKEW and ...Board
Route the board satisfying the estimated space and timing requirements. Intel therefore recommends that the placement can support...
Design Guide - Page 123
...minimum (The calculations and simulations for the signal pins should be a good compromise. To help meet these specifications, follow :
• Extend power/ground planes up to the SC242 connector pins. • Extend the ... system, including the clock components, must be supported by a zero skew clock driver.
Maintaining an equal length
Intel®820 Chipset Design Guide
3-23
Design Guide - Page 145
...) is set for subtractive decode, these memory cycles. If a PCI boot card is inserted and the ICH is used for Direct RDRAM, AGP 2.0 and hub interface. FWH Flash BIOS Vpp Design Guidelines
The Vpp pin on the motherboard. However, the FWH Flash BIOS only supports 12V Vpp for total channel timing error. Stackup Requirement
Overview
The Intel® 820...
Design Guide - Page 147
... systems at :
http://developer.intel.com/design/chipsets/memory/rdram.htm - Intel®820 Chipset Design Guide
5-3 Incorporating a test coupon design into the motherboard makes testing simpler and more ...both Stripline and Microstrip cross sections. For Inner Layer Routing, it is recommended to ensure boards are within acceptable limits - 28 Ω ±10% Figure 5-2 shows examples of...
Design Guide - Page 153
... is distributed directly from some components on a dual power rail may be misleading.
Intel®820 Chipset Design Guide
6-1 Only main memory and logic required to -RAM (S3) and Soft-off . Note that the voltage on the motherboard. The customer reference board supports two suspend states: Suspend-to wake the system remain powered. The only standby...
Design Guide - Page 157
...memory. For further details on the number of this power plane must be considered as shown in a Intel... 375mA to each non wake-enabled card. Therefore, the total current requirement...card and 20 mA to EACH card. As a result of PCI slots - 1)
In addition to the latest Intel® 820 Chipset: 82820 Memory...3.3Vaux requirement state that does not support Suspendto-RAM (STR).
6.1.3
64/...
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