Intel CC820 User Manual

Intel® Desktop Board CC820

Technical Product Specification

November 1999 Order Number 748475-002

The Intel® Desktop Board CC820 may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Board CC820 Specification Update.

Revision History

Revision Revision History Date

-001 Intel Desktop Board CC820 Technical Product Specification September 1999

-002 Intel Desktop Board CC820 Technical Product Specification November 1999

This product specification applies to only standard CC820 boards with BIOS identifier CC82010A.86A.

Changes to this specification will be published in the Intel Desktop Board CC820 Specification Update before being incorporated into a revision of this document.

Information in this doc um ent is provided in connection wi t h Intel® products. No license, express or implied, by est oppel or otherwise, to any intell ectual property rights is granted by this document. E x cept as provided in Intel’s Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and I nt el dis claims any express or implied warranty, relating to sale and/or use of I ntel products including liability or warranties relat i ng t o f i t ness for a particular purpose, merchantability, or infringement of any patent, copyright or other int ellec t ual propert y right. Intel products are not intended for use in medical, l i f e saving, or life sustai ni ng appl i cations.

Intel may make changes t o specifications and produc t descriptions at any tim e, without notice. The Intel Desktop Board CC820 may contain design defects or errors known as errata that may cause t he product to

deviate from published spec i fications. Current charac terized errata are available on request. Contact your local Int el sales office or your distributor to obtain the latest specifications before pl acing your product order. Copies of documents whic h hav e an orderi ng number and are referenced in this document, or other Intel literature, may be

obtained from:

Intel Corporation P.O. Box 5937 Denver, CO 80217-9808

or call in North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777, Germany 44-0-1793-421-333, other Countries 708-296-9333.

†

Third-party brands and names are the property of their respective owners.

Preface

This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for the Intel Desktop Board CC820. It describes the standard product and available manufacturing options.

Intended Audience

The TPS is intended to provide detailed, technical information about the CC820 board and its components to the vendors, system integrators, and other engineers and technicians who need this level of information. It is specifically not intended for general audiences.

What This Document Contains

Chapter Description

1 A description of the hardware used on the CC820 board 2 A map of the resources of the board 3 The features supported by the BIOS Setup program 4 The contents of the BIOS Setup program’s menus and submenus

5 A description of the BIOS error messages, beep codes, POST codes, and enhanced

diagnostics

Typographical Conventions

This section contains information about the conventions used in this specification. Not all of these symbols and abbreviations appear in all specifications of this type.

Notes, Cautions, and Warnings

NOTE

✏

Notes call attention to important information.

CAUTION

Cautions are included to help you avoid damaging hardware or losing data.

WARNING

Warnings indicate conditions, which if not observed, can cause personal injury.

iii

Intel Desktop Board CC820 Technical Product Specification

Other Common Notation

# Used after a signal name to identify an active-low signal (such as USBP0#) (NxnX) When used in the description of a component, N indicates component type, xn are the relative

coordinates of its location on the CC820 board, and X is the instance of the particular part at that general location. For example, J5J1 is a connector, located at 5J. It is the first connector in the

5J area. KB Kilobyte (1024 bytes) Kbit Kilobit (1024 bits) MB Megabyte (1,048,576 bytes) Mbit Megabit (1,048,576 bits) GB Gigabyte (1,073,741,824 bytes) xxh An address or data value ending with a lowercase h indicates a hexadecimal value. x.x V Volts. Voltages are DC unless otherwise specified.

†

This symbol is used to indicate third-party brands and names that are the property of their

respective owners.

1 Product Description

1.1 Overview ................................................................................................................... 12

1.1.1 Feature Summary ....................................................................................... 12

1.1.2 Manufacturing Option.................................................................................. 13

1.1.3 CC820 Board Layout ................................................................................... 14

1.1.4 Block Diagram............................................................................................. 15

1.2 Online Support........................................................................................................... 16

1.3 Design Specifications ................................................................................................ 16

1.4 Processor..................................................................................................................19

1.5 System Memory......................................................................................................... 20

1.5.1 ECC Memory............................................................................................... 20

1.5.2 DIMM Installation Guidelines ....................................................................... 21

1.6 Intel

1.7 I/O Controller............................................................................................................. 25

1.8 Audio......................................................................................................................... 28

1.9 Hardware Management Features.............................................................................. 32

1.10 Power Management Features.................................................................................... 33

820 Chipset...................................................................................................... 22

1.6.1 AGP............................................................................................................ 23

1.6.2 USB............................................................................................................. 23

1.6.3 IDE Support................................................................................................. 24

1.6.4 Real-Time Clock, CMOS SRAM, and Battery .............................................. 24

1.7.1 Serial Ports.................................................................................................. 26

1.7.2 Infrared Support.......................................................................................... 26

1.7.3 Parallel Port................................................................................................. 26

1.7.4 Diskette Drive Controller.............................................................................. 27

1.7.5 Keyboard and Mouse Interface ................................................................... 27

1.8.1 Audio/Modem Riser (AMR) Connector........................................................ 28

1.8.2 Enhanced PCI Audio Subsystem (Optional)................................................ 29

1.8.3 Audio Connectors........................................................................................ 30

1.9.1 Hardware Monitor Component .................................................................... 32

1.9.2 Chassis Intrusion Detect Connector............................................................ 32

1.10.1 Software Support ........................................................................................ 33

1.10.2 Hardware Support....................................................................................... 37

2 Technical Reference

2.1 Introduction................................................................................................................43

2.2 Memory Map ............................................................................................................. 43

2.3 I/O Map ..................................................................................................................... 44

2.4 DMA Channels .......................................................................................................... 46

2.5 PCI Configuration Space Map ................................................................................... 46

2.6 Interrupts...................................................................................................................47

2.7 PCI Interrupt Routing Map......................................................................................... 47

Intel Desktop Board CC820 Technical Product Specification

2.8 Connectors................................................................................................................ 49

2.8.1 Back Panel Connectors............................................................................... 50

2.8.2 Midboard Connectors.................................................................................. 53

2.8.3 Front Panel Connectors .............................................................................. 66

2.9 Jumper Block............................................................................................................. 69

2.10 Mechanical Considerations........................................................................................ 71

2.10.1 Form Factor................................................................................................. 71

2.10.2 I/O Shield .................................................................................................... 72

2.11 Electrical Considerations........................................................................................... 74

2.11.1 Power Consumption.................................................................................... 74

2.11.2 Add-in Board Considerations....................................................................... 74

2.11.3 Standby Current Requirements................................................................... 75

2.11.4 Fan Power Requirements............................................................................ 76

2.11.5 Power Supply Considerations......................................................................76

2.12 Thermal Considerations............................................................................................. 77

2.13 Reliability................................................................................................................... 78

2.14 Environmental............................................................................................................ 79

2.15 Regulatory Compliance............................................................................................. 80

2.15.1 Safety Regulations...................................................................................... 80

2.15.2 EMC Regulations........................................................................................ 80

2.15.3 Certification Markings.................................................................................. 81

3 Overview of BIOS Features

3.1 Introduction................................................................................................................83

3.2 BIOS Flash Memory Organization............................................................................. 84

3.3 Resource Configuration............................................................................................. 84

3.3.1 PCI Autoconfiguration................................................................................. 84

3.3.2 PCI IDE Support.......................................................................................... 85

3.4 System Management BIOS (SMBIOS)...................................................................... 86

3.5 BIOS Upgrades ......................................................................................................... 87

3.5.1 Language Support....................................................................................... 87

3.5.2 Custom Splash Screen................................................................................ 87

3.6 Recovering BIOS Data.............................................................................................. 88

3.7 Boot Options.............................................................................................................. 89

3.7.1 CD-ROM and Network Boot........................................................................ 89

3.7.2 Booting Without Attached Devices.............................................................. 89

3.8 USB Legacy Support................................................................................................. 90

3.9 BIOS Security Features............................................................................................. 91

4 BIOS Setup Program

4.1 Introduction................................................................................................................93

4.2 Maintenance Menu.................................................................................................... 94

4.2.1 Extended Configuration Submenu............................................................... 95

4.3 Main Menu................................................................................................................. 95

4.4 Advanced Menu......................................................................................................... 96

4.4.1 PCI Configuration Submenu ........................................................................ 97

4.4.2 Boot Configuration Submenu ...................................................................... 98

4.4.3 Peripheral Configuration Submenu.............................................................. 99

4.4.4 IDE Configuration Submenu ...................................................................... 101

4.4.5 Diskette Configuration Submenu............................................................... 103

4.4.6 Event Log Configuration Submenu............................................................ 104

4.4.7 Video Configuration Submenu................................................................... 105

4.5 Security Menu..........................................................................................................106

4.6 Power Menu............................................................................................................ 107

4.7 Boot Menu............................................................................................................... 108

4.7.1 IDE Drive Configuration Submenu............................................................. 109

4.8 Exit Menu................................................................................................................ 109

5 Error Messages and Beep Codes

5.1 BIOS Error Messages.............................................................................................. 111

5.2 Port 80h POST Codes............................................................................................. 113

5.3 Bus Initialization Checkpoints.................................................................................. 117

5.4 Speaker................................................................................................................... 118

5.5 BIOS Beep Codes................................................................................................... 118

5.6 Enhanced Diagnostics............................................................................................. 120

Contents

Figures

1. CC820 Board Components............................................................................................... 14

2. Block Diagram................................................................................................................... 15

3. Intel 820 Chipset Block Diagram....................................................................................... 22

4. Block Diagram of Audio Subsystem (with ICH and AMR).................................................. 28

5. Block Diagram of Audio Subsystem with Analog Codec and Digital Controller.................. 29

6. Using the Wake on LAN Technology Connector............................................................... 39

7. Location of Standby Power Indicator LED......................................................................... 40

8. Connector Groups............................................................................................................. 49

9. Back Panel Connectors..................................................................................................... 50

10. Audio Connectors.............................................................................................................. 54

11. Peripheral Interface and Indicator Connectors.................................................................. 57

12. Hardware Control and Power Connectors......................................................................... 60

13. Add-In Board Connectors.................................................................................................. 63

14. Front Panel Connectors.................................................................................................... 66

15. Location of the Jumper Block............................................................................................ 69

16. CC820 Board Dimensions................................................................................................. 71

17. I/O Shield Dimensions (for CC820 Boards with Audio Connectors)................................... 72

18. I/O Shield Dimensions (for CC820 Boards without Audio Connectors).............................. 73

19. Thermally-sensitive Components...................................................................................... 77

20. Memory Map of the Flash Memory Device........................................................................ 84

21. Enhanced Diagnostic LEDs............................................................................................. 120

vii

Intel Desktop Board CC820 Technical Product Specification

Tables

1. Feature Summary............................................................................................................. 12

2. Manufacturing Option........................................................................................................ 13

3. Specifications.................................................................................................................... 16

4. Supported Processors....................................................................................................... 19

5. Supported DIMM Sizes and Configurations (non-ECC specified)...................................... 20

6. Installation Guideline Summary......................................................................................... 21

7. Effects of Pressing the Power Switch................................................................................ 34

8. Power States and Targeted System Power ....................................................................... 35

9. Wake Up Devices and Events........................................................................................... 36

10. Fan Connector Descriptions.............................................................................................. 38

11. System Memory Map........................................................................................................ 43

12. I/O Map............................................................................................................................. 44

13. DMA Channels.................................................................................................................. 46

14. PCI Configuration Space Map........................................................................................... 46

15. Interrupts........................................................................................................................... 47

16. PCI Interrupt Routing Map ................................................................................................ 48

17. PS/2 Keyboard/Mouse Connectors................................................................................... 51

18. USB Connectors...............................................................................................................51

19. Parallel Port Connector..................................................................................................... 51

20. Serial Port Connectors...................................................................................................... 52

21. MIDI/Game Port Connector............................................................................................... 52

22. Audio Line Out Connector................................................................................................. 52

23. Audio Line In Connector.................................................................................................... 52

24. Mic In Connector............................................................................................................... 52

25. CD-ROM Legacy Style Connector (J2C1)......................................................................... 55

26. Audio/Modem Riser Connector (J3F1).............................................................................. 55

27. ATAPI CD-ROM Connector (J1F1) ................................................................................... 56

28. Telephony Connector (J2F1)............................................................................................. 56

29. Auxiliary Line In Connector (J2F2).................................................................................... 56

30. SCSI LED Connector (J7B3)............................................................................................. 58

31. PCI IDE Connectors (J7G1, Primary and J6G1, Secondary)............................................. 58

32. Diskette Drive Connector (J8G1) ...................................................................................... 59

33. Power Supply Fan 2 Control Connector (J5L1)................................................................. 61

34. Processor Fan 3 Connector (J2M1) .................................................................................. 61

35. Main Power Connector (J6M2).......................................................................................... 61

36. System Fan 1 Connector (J8D1)....................................................................................... 61

37. Wake on LAN Technology Connector (J7C2).................................................................... 62

38. Chassis Intrusion Connector (J7C1).................................................................................. 62

39. Wake on Ring Connector (J7B2)....................................................................................... 62

40. PCI Bus Connectors (J4A1, J4B1, J4C1, J4D1, J4E1)...................................................... 64

41. AGP Interface Connector (J5E1)....................................................................................... 65

42. Front Panel Connector (J8G2).......................................................................................... 67

43. States for a Single-Colored Power LED ............................................................................ 68

44. States for a Dual-Colored Power LED............................................................................... 68

45. Auxiliary Front Panel Power LED Connector (J8J2).......................................................... 68

46. BIOS Setup Configuration Jumper Settings (J7B1)........................................................... 70

viii

Contents

47. Power Usage .................................................................................................................... 74

48. Standby Current Requirements......................................................................................... 75

49. Thermal Considerations for Components.......................................................................... 78

50. CC820 Desktop Board Environmental Specifications........................................................ 79

51. Safety Regulations............................................................................................................ 80

52. EMC Regulations..............................................................................................................80

53. Supervisor and User Password Functions......................................................................... 91

54. BIOS Setup Program Menu Bar........................................................................................ 93

55. BIOS Setup Program Function Keys................................................................................. 94

56. Maintenance Menu............................................................................................................ 94

57. Extended Configuration Submenu..................................................................................... 95

58. Main Menu........................................................................................................................ 95

59. Advanced Menu................................................................................................................96

60. PCI Configuration Submenu.............................................................................................. 97

61. Boot Configuration Submenu............................................................................................ 98

62. Peripheral Configuration Submenu ................................................................................... 99

63. IDE Configuration Submenu............................................................................................ 101

64. IDE Configuration Sub-Submenus.................................................................................. 102

65. Diskette Configuration Submenu..................................................................................... 103

66. Event Log Configuration Submenu.................................................................................. 104

67. Video Configuration Submenu......................................................................................... 105

68. Security Menu................................................................................................................. 106

69. Power Menu.................................................................................................................... 107

70. Boot Menu....................................................................................................................... 108

71. IDE Drive Configuration Submenu.................................................................................. 109

72. Exit Menu........................................................................................................................ 109

73. BIOS Error Messages..................................................................................................... 111

74. Uncompressed INIT Code Checkpoints.......................................................................... 113

75. Boot Block Recovery Code Checkpoints......................................................................... 113

76. Runtime Code Uncompressed in F000 Shadow RAM..................................................... 114

77. Bus Initialization Checkpoints.......................................................................................... 117

78. Upper Nibble High Byte Functions .................................................................................. 117

79. Lower Nibble High Byte Functions .................................................................................. 118

80. Beep Codes .................................................................................................................. 119

81. Diagnostic LED Codes.................................................................................................... 121

Intel Desktop Board CC820 Technical Product Specification

1 Product Description

What This Chapter Contains

1.1 Overview ................................................................................................................... 12

1.2 Online Support........................................................................................................... 16

1.3 Design Specifications ................................................................................................ 16

1.4 Processor.................................................................................................................. 19

1.5 System Memory......................................................................................................... 20

1.6 Intel

1.7 I/O Controller............................................................................................................. 25

1.8 Audio......................................................................................................................... 28

1.9 Hardware Management Features.............................................................................. 32

1.10 Power Management Features.................................................................................... 33

820 Chipset ..................................................................................................... 22

Intel Desktop Board CC820 Technical Product Specification

1.1 Overview

1.1.1 Feature Summary

Table 1 summarizes the CC820 board’s major features.

Table 1. Feature Summary

Form Factor Processor Memory

Chipset

I/O Control Video Peripheral

Interfaces

Expansion Capabilities

BIOS

Enhanced Diagnostics

Hardware Monitor Subsystem

Instantly Available PC

ATX (12.0 inches by 8.2 inches) Support for Intel

• Two 168-pin SDRAM Dual Inline Memory Module (DIMM) sockets

• Support for up to 512 MB system memory

• Single or double-sided DIMMs supported

Intel® 820 Chipset, consisting of:

• Intel

• Intel® 82805AA Memory Translator Hub (MTH)

SMSC LPC47M102 ultra I/O controller AGP universal connector supporting 1X, 2X, and 4X AGP cards

• Two serial ports

• Two Universal Serial Bus (USB) ports

• One parallel port

• Two IDE interfaces with Ultra DMA and ATA 66 support

• One diskette drive interface

Six add-in card expansion slots:

• Five PCI bus add-in card connectors (SMBus routed to PCI connector – slot 2)

• One AGP universal connector

• Intel/AMI BIOS

• Intel 82802AB 4 Mbit Firmware Hub (FWH)

• Support for Advanced Power Management (APM), Advanced Configuration and

Four dual-color LEDs on back panel

• Two fan sense inputs used to monitor fan activity

• Two pin header security feature for intrusion detection

• Remote diode temperature sense

• Voltage sense to detect out of range values

• Hardware monitor component

• Support for

• Suspend to RAM support

• Wake on PS/2 keyboard and USB ports

® ®

Power Interface (ACPI), Plug and Play, and SMBIOS

Pentium® III and Pentium II processors

82820 Memory Controller Hub (MCH) 82801AA I/O Controller Hub (ICH) 82802AB 4 Mbit Firmware Hub (FWH)

PCI Local Bus Specification Revision 2.2

continued

Table 1. Feature Summary (continued)

Wake on LAN Technology Connector

Wake on Ring Connector

SCSI LED Connector

AMR

For information about Refer to

The board’s compliance level with APM, ACPI, Plug and Play, and SMBIOS. Section 1.3, page 16

†

Support for system wake up using an add-in network interface card with remote wake up capability

Support for system wake up using an add-in telephony device, such as a modem

Allows add-in SCSI controllers to use the same LED as the onboard I/O controller

Audio/Modem Riser connector

1.1.2 Manufacturing Option

Table 2 describes the CC820 board’s manufacturing option.

Table 2. Manufacturing Option

Audio

Audio Codec ’97 (AC ’97) compatible. The audio subsystem includes Creative Labs’ ES1373 AC ’97 Digital Controller with Crystal Semiconductor’s CS4297 Stereo Audio Codec.

Product Description

Intel Desktop Board CC820 Technical Product Specification

1.1.3 CC820 Board Layout

Figure 1 shows the location of the major components on the CC820 board.

D E

NM K JIL HG

OM08893

A Back panel connectors J Battery B 242-contact slot connector K Speaker C Intel 82820 Memory Controller Hub (MCH) L Intel 82801AA I/O Controller Hub (ICH) D Power connector M SMSC LPC47M102 I/O Controller E Intel 82805 Memory Translator Hub (MTH) N Intel 82802AB 4 Mbit Firmware Hub (FWH) F DIMM sockets (Bank 0, upper; Bank 1, lower) O Creative Labs ES1373 Digital Controller (optional) G Diskette drive connector P AGP universal connector H Front panel connector Q PCI bus add-in card connectors I IDE connectors R Audio/Modem Riser (AMR) connector

Figure 1. CC820 Board Components

1.1.4 Block Diagram

Figure 2 is a block diagram of the major functional areas of the CC820 board.

Product Description

Processor Connector

82805AA

Memory

Translator

Hub (MTH)

SDRAM Bus

AGP Universal

Connector

Host Bus

820 Chipset

Memory Controller

DIMM Banks

(2)

AGP Interface

Hardware

Monitor

Secondary IDE

82820

Hub (MCH)

Primary/

AHA

Bus

SMBus

ATA33/66

82801AA I/O Controller Hub

(ICH)

Controller

PCI Bus

LPC Bus

LPC I/O

USB PortsUSB

82802AB

Firmware Hub

(FWH)

Diskette Drive

Connector

Serial Port A Serial Port B Parallel Port PS/2 Mouse

PS/2 Keyboard

MIDI/Game Port

Diagnostic

LEDs

PCI Slots

(5)

Figure 2. Block Diagram

AC Link

Audio

Modem

Riser

Enhanced

Audio

(Optional)

OM08889

Intel Desktop Board CC820 Technical Product Specification

1.2 Online Support

Find information about Intel’s CC820 board under “Product Info” or “Customer Support” at these World Wide Web sites:

http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop

Find “Processor Data Sheets” or information about “Proper Date Access in Systems with Intel Motherboards” at these World Wide Web sites:

http://www.intel.com/design/litcentr http://support.intel.com/support/year2000

Find information about the ICH addressing at this World Wide Web site: http://developer.intel.com/design/chipsets/datashts/

1.3 Design Specifications

Table 3 lists the specifications applicable to the CC820 board.

Table 3. Specifications

Reference Name

AC ‘97

ACPI

AGP

AMI BIOS

AMR

APM

ATA-3

Specification Title

Audio Codec ‘97

Advanced Configuration and Power Interface Specification

Accelerated Graphics Port Interface Specification

American Megatrends BIOS Specification

Audio/Modem Riser Specification

Advanced Power Management BIOS Interface Specification

Information Technology AT Attachment-3 Interface, X3T10/2008D

Version, Revision Date, and Ownership

Version 2.1, May 1998, Intel Corporation.

Version 1.0b, February 1, 1999, Intel Corporation, Microsoft Corporation, and Toshiba Corporation.

Version 2.0, May 4, 1998, Intel Corporation.

AMIBIOS 99, 1999 American Megatrends, Inc.

Version 1.01, September 10, 1998, Intel Corporation.

Version 1.2, February 1996, Intel Corporation, Microsoft Corporation.

Version 6, October 1995, ASC X3T10 Technical Committee.

The information is

available from…

ftp://download.intel.com/ pc-supp/platform/ac97

http://www.teleport.com/~acpi/

the Accelerated Graphics Implementers Forum at:: http://www.agpforum.org/

http://www.amibios.com, or http://www.ami.com/download/ amibios99.pdf

ftp://download.intel.com/ pc-supp/platform/ac97/ amr101.pdf

http://www.microsoft.com/ hwdev/busbios/amp_12.htm

ATA Anonymous FTP Site: ftp://www.dt.wdc.com/ata/ ata-3/

continued

Table 3. Specifications (continued)

Specification

Description

ATAPI

ATX

EPP

El Torito

†

IrDA

LPC

PCI

Plug and Play

SDRAM PC SDRAM Unbuffered

Title

Information Technology AT Attachment with Packet Interface Extensions T13/1153D

ATX Specification

Enhanced Parallel Port IEEE std 1284.1-1997

Bootable CD-ROM format specification

Serial Infrared Physical Layer Link specification

Low Pin Count Interface Specification

PCI Local Bus Specification

PCI Bus Power Management Interface Specification

Plug and Play BIOS specification

DIMM Specification

PC SDRAM DIMM Specification

PC Serial Presence Detect (SPD) Specification

Version, Revision Date and Ownership

Version 18, August 19, 1998, Contact: T13 Chair, Seagate Technology.

Version 2.01, February 1997, Intel Corporation.

Version 1.7, 1997, Institute of Electrical and Electronic Engineers.

Version 1.0, January 25, 1995, Phoenix Technologies Ltd., and IBM Corporation.

Version 1.1, October 17, 1995, Infrared Data Association.

Version 1.0, September 29, 1997, Intel Corporation.

Version 2.2, December 18, 1998, PCI Special Interest Group.

Version 1.1, December 18, 1998, PCI Special Interest Group.

Version 1.0a, May 5, 1994, Compaq Computer Corp., Phoenix Technologies Ltd., and Intel Corporation.

Revision 1.0, February, 1998, Intel Corporation.

Revision 1.5, November, 1997, Intel Corporation.

Revision 1.2A, December, 1997 Intel Corporation.

Product Description

The information is

available from…

T13 Anonymous FTP Site: ftp://fission.dt.wdc.com/ x3t13/project/ d1153r18.pdf

http://developer.intel.com/ design/motherbd/atx.htm

http://standards.ieee.org/ reading/ieee/std_public/ description/busarch/

1284.1-1997_desc.html the Phoenix Web site at:

http://www.ptltd.com/techs /specs.html

Phone: (510) 943-6546 Fax: (510) 943-5600 E-mail: irda@netcom.com

http://www.intel.com/ design/chipsets/industry/ lpc.htm

http://www.pcisig.com/

http://www.microsoft.com/ hwdev/respec/ pnpspecs.htm

http://www.intel.com/ design/chipsets/memory

http://www.intel.com/ design/pcisets/memory

continued

Intel Desktop Board CC820 Technical Product Specification

Table 3. Specifications (continued)

Description

SMBIOS

UHCI

USB

WfM

Specification Title

System Management BIOS

Universal Host Controller Interface Design Guide

Universal Serial Bus Specification

Wired for Management Baseline

Version, Revision Date and Ownership

Version 2.3, August 12, 1998, Award Software International Inc., Dell Computer Corporation, Hewlett-Packard Company, Intel Corporation, International Business Machines Corporation, Phoenix Technologies Limited, American Megatrends Inc., and SystemSoft Corporation.

Version 1.1, March 1996, Intel Corporation.

Version 1.1, September 23, 1998, Compaq Computer Corporation, Intel Corporation, Microsoft Corporation, and NEC.

Version 2.0, December 18, 1998, Intel Corporation.

The information is

available from…

http://developer.intel.com/ ial/wfm/design/ smbios

http://www.usb.org/ developers

http://developer.intel.com/ ial/WfM/wfmspecs.htm

Product Description

1.4 Processor

CAUTION

The CC820 desktop board supports processors that have a 19.3 A maximum current draw (2 V core), or 18.4 A maximum current draw (1.6 V core). Using a processor not in compliance with the above guidelines can damage the processor, the CC820 board, and the power supply. See

the processor’s data sheet for current usage requirements.

The CC820 board supports a single Pentium III or Pentium II processor. The host bus speed is automatically selected. The processor must be secured by a retention mechanism attached to the CC820 board.

The CC820 board supports a single 242-contact slot type processor as listed in Table 4.

Table 4. Supported Processors

Processor Type

Pentium III processor 450, 500, 550, and 600 100 512

Pentium II processor 350, 400, and 450 100 512

Processor Designation (MHz)

550E, 600E, 650, and 700 100 256 533B and 600B 133 512 533EB, 600EB, 667, and 733 133 256

Host Bus Frequency (MHz)

L2 Cache Size (KB)

NOTE

✏

66 MHz host bus frequency processors are not supported in this product. A hardware lockout is provided so that if such a processor is installed, the CC820 board will not power-up.

All supported onboard memory can be cached, up to the cachability limit of the processor. See the

processor’s data sheet for cachability limits.

For information about Refer to

Processor support Section 1.2, page 16 Processor data sheets Section 1.2, page 16

Intel Desktop Board CC820 Technical Product Specification

1.5 System Memory

CAUTION

To be fully compliant with all applicable Intel® SDRAM memory specifications, the CC820 board requires DIMMs that support the Serial Presence Detect (SPD) data structure. If non-SPD DIMMs are installed, the system will not boot properly.

The CC820 desktop board has two DIMM sockets supporting 168-pin SDRAM DIMMs. When installing memory in the CC820 desktop board, proper memory installation guidelines should be followed as described in Section 1.5.2.

The CC820 desktop board supports the following memory features:

• 168-pin SDRAM DIMMs with gold-plated contacts

• 100 MHz SDRAM (only)

• 64 Mbit and 128 Mbit SDRAM component density (see Table 5 below)

• Minimum system memory: 32 MB

• Maximum system memory: 512 MB

• Unbuffered single or double-sided DIMMs

• Serial Presence Detect (SPD) memory (only)

• Non-ECC and ECC DIMMs (ECC DIMMs will operate in non-ECC mode only)

• 3.3 V memory (only)

• Suspend to RAM

Table 5. Supported DIMM Sizes and Configurations (non-ECC specified)

Total Number of SDRAM Components

DIMM Size

32 MB 4 4M x 64 64 Mbit 4M x 16 64 MB 8 8M x 64 64 Mbit 8M x 8 64 MB 8 (double sided) 8M x 64 64 Mbit 4M x 16 64 MB 4 8M x 64 128 Mbit 8M x 16 128 MB 16 (double sided) 16M x 64 64 Mbit 8M x 8 128 MB 8 16M x 64 128 Mbit 16M x 8 128 MB 8 (double sided) 16M x 64 128 Mbit 8M x 16 256 MB 16 (double sided) 32M x 64 128 Mbit 16M x 8

* Non-ECC DIMMs are specified. ECC DIMM organization will be x72 and will have up to one additional SDRA M

component for each side of DI M M

on DIMM*

Non-ECC DIMM Organization*

SDRAM Component Density

SDRAM Component Organization

1.5.1 ECC Memory

The CC820 board supports both ECC and non-ECC DIMMs, however, ECC DIMMs will operate in non-ECC mode only.

Product Description

1.5.2 DIMM Installation Guidelines

CAUTION

To be fully compliant with all applicable Intel SDRAM memory specifications, the CC820 desktop board requires DIMMs that support the Serial Presence Detect (SPD) data structure.

The CC820 board requires supported DIMMs be installed under the guidelines listed below.

• If you have one DIMM, install it in Bank 0 (the memory slot closest to the processor). If only

one DIMM is installed in Bank 1, the system will still boot, however STR will not work.

• If you have two identical DIMMs (same size, same number of sides, both single-sided or both

double-sided), install them in either bank 0 or bank 1.

• If you have two DIMMs of different sizes (e.g., a 64 MB and 128 MB DIMM), install the

larger DIMM in Bank 0, and the smaller DIMM in Bank 1.

• If you have two DIMMs of the same size and one is single-sided and one is double-sided,

install the single-sided DIMM in Bank 0 and the double-sided DIMM in bank 1.

NOTE

✏

An ECC-type DIMM may have one or two additional SDRAM devices per side for ECC bit storage. Do not count these when determining the number of SDRAM devices on the DIMM.

Table 6 summarizes the DIMM installation guidelines given above.

Table 6. Installation Guideline Summary

Types of DIMMs to be installed… Bank 0 Bank 1

One DIMM DIMM (Empty) Two DIMMs - Same size, same number of sides (both single-

or both double-sided) Two DIMMs - Different sizes Larger DIMM Smaller DIMM Two DIMMs - Same size, one is single-sided and one is

double-sided

For information about Refer to

The

PC Serial Presence Detect Specification

Obtaining copies of PC SDRAM specifications Section 1.3, page 16

Section 1.3, page 16

Either DIMM Either DIMM

Single-sided DIMM Double-sided DIMM

Intel Desktop Board CC820 Technical Product Specification

1.6 Intel® 820 Chipset

The Intel 820 chipset consists of the following devices:

• 82820 Memory Controller Hub (MCH) with Accelerated Hub Architecture (AHA) bus

• 82801AA I/O Controller Hub (ICH) with AHA bus

• 82802AB Firmware Hub (FWH)

• 82805AA Memory Translator Hub (MTH)

The chipset provides the host, memory, AGP, and I/O interfaces shown in Figure 3.

ATA33/66 USBHost Bus

820 Chipset

82805AA

Memory

Translator

Hub (MTH)

SDRAM Bus

AGP Interface

82820

Memory Controller

Hub (MCH)

AHA

Bus

82801AA I/O Controller Hub

(ICH)

SMBus

PCI Bus

AC Link

Figure 3. Intel 820 Chipset Block Diagram

For information about Refer to The Intel 820 chipset http://developer.intel.com The resources used by the chipset Chapter 2 The chipset’s compliance with ACPI, APM, AC ‘97 Section 1.3, page 16

82802AB

Firmware Hub

(FWH)

LPC Bus

OM08890

Product Description

1.6.1 AGP

AGP is a high-performance interface for graphics-intensive applications, such as 3D applications. While based on the PCI Local Bus Specification, Rev. 2.1, AGP is independent of the PCI bus and is intended for exclusive use with graphical display devices. AGP overcomes certain limitations of the PCI bus related to handling large amount of graphics data with the following features:

• Pipelined memory read and write operations that hide memory access latency

• Demultiplexing of address and data on the bus for nearly 100 percent efficiency

For information about Refer to

Obtaining the

Accelerated Graphics Port Interface Specification

Section 1.3, page 16

1.6.2 USB

The CC820 board has two USB ports; one USB peripheral can be connected to each port. For more than two USB devices, an external hub can be connected to either port. The two USB ports are implemented with stacked back panel connectors. The CC820 board fully supports UHCI and uses UHCI-compatible software drivers. USB features include:

• Self-identifying peripherals that can be plugged in while the computer is running

• Automatic mapping of function to driver and configuration

• Support for isochronous and asynchronous transfer types over the same set of wires

• Support for up to 127 physical devices

• Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other

applications

• Error-handling and fault-recovery mechanisms built into the protocol

NOTE

✏

Computer systems that have an unshielded cable attached to a USB port may not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use shielded cable that meets the requirements for full-speed devices.

For information about Refer to

The location of the USB connectors on the back panel Figure 9, page 50 The signal names of the USB connectors Table 18, page 51 The USB specification and UHCI Section 1.3, page 16

Intel Desktop Board CC820 Technical Product Specification

1.6.3 IDE Support

1.6.3.1 IDE Interfaces

The CC820 board has two independent bus-mastering IDE interfaces. These interfaces support:

• ATA 33/66

• ATAPI devices (such as CD-ROM drives)

• ATA devices using the transfer modes listed in Table 64 on page 102

The BIOS supports logical block addressing (LBA) and extended cylinder head sector (ECHS) translation modes. The drive reports the transfer rate and translation mode to the BIOS.

The CC820 board supports laser servo (LS-120) diskette technology through its IDE interfaces.

The LS-120 drive can be configured as a boot device by setting the BIOS Setup program’s Boot menu to one of the following:

• ARMD-FDD (ATAPI removable media device – floppy disk drive)

• ARMD-HDD (ATAPI removable media device – hard disk drive)

For information about Refer to

The location of the IDE connectors Figure 11, page 57 The signal names of the IDE connectors Table 31, page 58

BIOS Setup program’s Boot menu Table 70, page 108

1.6.3.2 SCSI Hard Drive Activity LED Connector

The SCSI hard drive activity LED connector is a 1 x 2-pin connector that allows add-in SCSI controller to use the same LED as the IDE controller. This connector can be connected to the LED output of the add-in controller card. The LED will indicate when data is being read or written using the add-in controller.

For information about Refer to

The location of the SCSI hard drive activity LED connector Figure 11, page 57 The signal names of the SCSI hard drive activity LED connector Table 30, page 58

1.6.4 Real-Time Clock, CMOS SRAM, and Battery

The real-time clock is compatible with DS1287 and MC146818 components. The clock provides a time-of-day clock and a multicentury calendar with alarm features and century rollover. The realtime clock supports 256 bytes of battery-backed CMOS SRAM in two banks that are reserved for BIOS use.

A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at 25 ºC with 3.3 VSB applied.

The time, date, and CMOS values can be specified in the BIOS Setup program. The CMOS values can be returned to their defaults by using the BIOS Setup program.

Product Description

✏ NOTE

If the battery and AC power fail, standard defaults, not custom defaults, will be loaded into CMOS RAM at power-on.

✏ NOTE

The recommended method of accessing the date in systems with CC820 boards is indirectly from the Real-Time Clock (RTC) via the BIOS. The BIOS on CC820 boards contains a century checking and maintenance feature. This feature checks the two least significant digits of the year stored in the RTC during each BIOS request (INT 1Ah) to read the date and, if less than 80 (i.e., 1980 is the first year supported by the PC), updates the century byte to 20. This feature enables operating systems and applications using the BIOS date/time services to reliably manipulate the year as a four-digit value.

For information about Refer to

Proper date access in systems with CC820 boards Section 1.2, page 16

1.7 I/O Controller

The SMSC LPC47M102 I/O Controller provides the following features:

• Low pin count (LPC) interface

• 3.3V operation

• Two serial ports

• One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port

(EPP) support

• Serial IRQ interface compatible with serialized IRQ support for PCI systems

• PS/2-style mouse and keyboard interfaces

• Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive

• Intelligent power management, including a programmable wake up event interface

• PCI Power Management Support

• IrDA

• Fan control:

The BIOS Setup program provides configuration options for the I/O controller.

For information about Refer to

SMSC LPC47M102 I/O controller http://www.smsc.com

†

1.0 compliant

 Two fan control outputs  Two fan tachometer inputs

Intel Desktop Board CC820 Technical Product Specification

1.7.1 Serial Ports

The CC820 board has two 9-pin D-Sub serial port connectors located on the back panel. The serial

ports’ NS16C550-compatible UARTs support data transfers at speeds up to 115.2 kbits/sec with BIOS support. The serial ports can be assigned as COM1 (3F8h), COM2 (2F8h), COM3 (3E8h), or COM4 (2E8h).

For information about Refer to

The location of the serial port connectors Figure 9, page 50 The signal names of the serial port connectors Table 20, page 52

1.7.2 Infrared Support

On the front panel connector, there are four pins that support Hewlett-Packard HSDL-1000 compatible infrared (IR) transmitters and receivers. In the BIOS Setup program, Serial Port B can be directed to a connected IR device. (In this case, the serial port B connector on the back panel cannot be used.) The IR connection can be used to transfer files to or from portable devices like laptops, PDAs, and printers. The Infrared Data Association (IrDA) specification supports data transfers of 115 Kbits/sec at a distance of 1 meter.

For information about Refer to

The infrared port connector Table 42, page 67 Configuring serial port B for infrared applications Section 4.4.3, page 99 The IrDA specification Section 1.3, page 16

1.7.3 Parallel Port

The connector for the multimode bidirectional parallel port is a 25-pin D-Sub connector located on the back panel. In the BIOS Setup program, the parallel port can be configured for the following:

†

• Output only (PC AT

• Bi-directional (PS/2 compatible)

• EPP

• ECP

For information about Refer to

The location of the parallel port connector Figure 9, page 50 The signal names of the parallel port connector Table 19, page 51

-compatible mode)

Product Description

1.7.4 Diskette Drive Controller

The I/O controller supports one diskette drive that is compatible with the 82077 diskette drive

†

controller and supports both PC-AT

For information about Refer to

The location of the diskette drive connector Figure 11, page 57 The signal names of the diskette drive connector Table 32, page 59 The supported diskette drive capacities and sizes Table 65, page 103

and PS/2 modes.

1.7.5 Keyboard and Mouse Interface

PS/2 keyboard and mouse connectors are located on the back panel. The +5 V lines to these

†

connectors are protected with a PolySwitch connection after an overcurrent condition is removed.

NOTE

✏

The keyboard is supported in the bottom PS/2 connector and the mouse is supported in the top PS/2 connector. Power to the computer should be turned off before a keyboard or mouse is connected or disconnected.

circuit that, like a self-healing fuse, reestablishes the

The keyboard controller contains the AMI keyboard and mouse controller code, provides the keyboard and mouse control functions, and supports password protection for power-on/reset. A power-on/reset password can be specified in the BIOS Setup program.

The keyboard controller also supports the hot-key sequence <Ctrl><Alt><Del> for a software

reset. This key sequence resets the computer’s software by jumping to the beginning of the BIOS code and running the power-on self-test (POST).

For information about Refer to

The location of the keyboard and mouse connectors Figure 9, page 50 The signal names of the keyboard and mouse connectors Table 17, page 51

Intel Desktop Board CC820 Technical Product Specification

1.8 Audio

The CC820 desktop board offers two audio subsystems. The first is the basic audio subsystem present on all CC820 boards consisting of:

• Intel 82801AA I/O Controller Hub (ICH)

• AMR connector

The second is an optional enhanced PCI audio subsystem consisting of:

• ICH

• AMR connector

• Creative Labs ES1373 digital controller with Crystal Semiconductor CS4297 (A) codec

Both audio subsystems include these features:

• Split digital/analog architecture for improved S/N (signal-to-noise) ratio: ≥ 85dB

• Power management support for APM 1.2 and ACPI 1.0 (driver dependant)

• 3-D stereo enhancement

The Enhanced PCI Audio Subsystem has additional features described in Section 1.8.2.

1.8.1 Audio/Modem Riser (AMR) Connector

The AMR is a 46-pin riser connector that supports adding modems and/or audio risers to CC820

boards. The AMR interface, utilizing an AC ’97 2.1 link, includes support for audio codec, modem codec, and audio/modem codec devices.

82801AA

I/O Controller Hub (ICH)

AMR Connector

Figure 4. Block Diagram of Audio Subsystem (with ICH and AMR)

For information about Refer to

The location of the Audio/Modem Riser connector Figure 13, page 63 The signal names of the Audio/Modem Riser connector Table 26, page 55 The AMR specification Section 1.3, page 16

AC ’97 Link

OM09038

Product Description

1.8.2 Enhanced PCI Audio Subsystem (Optional)

The CC820 board offers an optional subsystem of AC ’97 V 1.03 compliant audio features supported by the Creative Labs ES1373 digital controller with Crystal Semiconductor CS4297 (A) codec. The enhanced PCI audio subsystem supports the following audio connectors:

• Audio inputs:  Three analog line-level stereo inputs for connection from line in, CD and aux  Two analog line-level inputs for speakerphone  One mono microphone input

• Audio outputs:  Stereo line-level output  Mono output for speakerphone

Analog Codec

(Crystal Semiconductor

CS4297(A))

Modem Audio

CD-ROM

Line In

Audio In

Mic In

Line Out

AMR Connector

I/O Controller Hub (ICH)

AC ’97 Link

82801AA

PCI Bus

AC ’97 Link

Digital Controller

(Creative Labs ES1373)

Game Port

MIDI Interface

OM08843

Figure 5. Block Diagram of Audio Subsystem with Analog Codec and Digital Controller

The Creative Labs ES1373 digital controller with the Crystal Semiconductor CS4297 (A) codec support the following features:

• Creative Labs ES1373 AC ’97 V1.03 Digital Controller:  PCI 2.1 compliant  PCI bus master for PCI audio  64-voice wavetable synthesizer

†

 Aureal A3D

API, Sound Blaster Pro†, Roland MPU-401 MIDI, joystick compatible

 Ensoniq 3D positional audio and Microsoft DirectSound† 3D support

• Crystal Semiconductor CS4297 (A) Stereo Audio Codec:  High performance 18-bit stereo full-duplex audio codec with up to 48 kHz sampling rate  Connects to the ES1373 digital controller using a five-wire digital interface

For information about Refer to

Obtaining audio software and utilities Paragraph 1.2, page 16

Intel Desktop Board CC820 Technical Product Specification

1.8.3 Audio Connectors

The audio connectors include the following:

• CD-ROM (legacy-style 2-mm connector)

• ATAPI-style connectors:  CD-ROM  Telephony  Auxiliary line in  Video source line in

• Back panel audio connectors:  MIDI/Game Port  Line out  Line in  Mic in

• Audio/Modem Riser (AMR)

For information about Refer to

The back panel audio connectors Section 2.8.1, page 50

NOTE

✏

Some of the audio connectors are optional and are not installed on all versions of the CC820 board.

1.8.3.1 CD-ROM (Legacy-style 2 -mm) Connector

A 1 x 4-pin legacy-style 2-mm connector connects an internal CD-ROM drive to the audio mixer.

For information about Refer to

The location of the legacy-style 2-mm connector Figure 10, page 54 The signal names of the legacy-style 2 mm connector Table 26, page 55

Product Description

1.8.3.2 ATAPI CD-ROM Audio Connector

A 1 x 4-pin ATAPI-style connector connects an internal ATAPI CD-ROM drive to the audio mixer.

For information about Refer to

The location of the ATAPI CD-ROM connector Figure 10, page 54 The signal names of the ATAPI CD-ROM connector Table 27, page 56

1.8.3.3 Telephony Connector

A 1 x 4-pin ATAPI-style connector connects the monoaural audio signals of an internal telephony device to the audio subsystem. A monaural audio-in and audio-out signal interface is necessary for telephony applications such as speakerphones, fax/modems, and answering machines.

For information about Refer to

The location of the telephony connector Figure 10, page 54 The signal names of the telephony connector Table 28, page 56

1.8.3.4 Auxiliary Line In Connector

A 1 x 4-pin ATAPI-style connector connects the left and right channel signals of an internal audio device to the audio subsystem.

For information about Refer to

The location of the auxiliary line in connector Figure 10, page 54 The signal names of the auxiliary line in connector Table 29, page 56

Intel Desktop Board CC820 Technical Product Specification

1.9 Hardware Management Features

The hardware management features enable the board to be compatible with the Wired for Management (WfM) specification. The board has several hardware management features, including the following:

• Hardware monitor component

• Chassis intrusion detection

• Fan control and monitoring (implemented on the SMSC LPC47M102 I/O controller)

For information about Refer to

The WfM specification Table 3, page 16 Fan control functions of the SMSC LPC47M102 I/O controller Section 1.7, page 25

1.9.1 Hardware Monitor Component

The hardware monitor component provides low-cost instrumentation capabilities. The features of the component include:

• Internal ambient temperature sensing

• Remote thermal diode sensing for direct monitoring of processor temperature (if supported in

the processor)

• Power supply monitoring (+12, +5, +3.3, +2.5, 3.3 VSB, VCCP) to detect levels above or below acceptable values

• SMBus interface

1.9.2 Chassis Intrusion Detect Connector

The board supports a chassis security feature that detects if the chassis cover is removed and sounds an alarm (through the onboard speaker or PC chassis speaker, if either is present). For the

chassis intrusion circuit to function, the chassis’ power supply must be connected to AC power. The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion detect connector. The mechanical switch is closed for normal computer operation.

For information about Refer to

The location of the chassis intrusion detect connector Figure 12, page 60 The signal names of the chassis intrusion detect connector Table 38, page 62

1.10 Power Management Features

Power management is implemented at several levels, including:

• Software support:  Advanced Power Management (APM)  Advanced Configuration and Power Interface (ACPI)

• Hardware support:  Power connector  Fan connectors  Wake on LAN technology  Instantly Available technology  Wake on Ring  Resume on Ring  Wake from USB  Wake on Keyboard  Wake on PME#

Product Description

1.10.1 Software Support

The software support for power management includes:

• APM

• ACPI

If the CC820 board is used with an ACPI-aware operating system, the BIOS can provide ACPI support. Otherwise, it defaults to APM support.

1.10.1.1 APM

APM makes it possible for the computer to enter an energy-saving standby mode. The standby mode can be initiated in the following ways:

• Time-out period specified in the BIOS Setup program

• From the operating system, such as the Standby menu item in Windows† 98

In standby mode, the CC820 board can reduce power consumption by spinning down hard drives, and reducing power to, or turning off of, VESA DPMS-compliant monitors. Power management mode can be enabled or disabled in the BIOS Setup program.

While in standby mode, the system retains the ability to respond to external interrupts and service requests, such as incoming faxes or network messages. Any keyboard or mouse activity brings the system out of standby mode and immediately restores power to the monitor.

Intel Desktop Board CC820 Technical Product Specification

The BIOS enables APM by default; but the operating system must support an APM driver for the power management features to work. For example, Windows 98 supports the power management features upon detecting that APM is enabled in the BIOS.

For information about Refer to

Enabling or disabling power management in the BIOS Setup program Section 4.6, page 106

The CC820 board’s compliance level with APM Table 3, page 16

1.10.1.2 ACPI

ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with the CC820 board requires an operating system that provides full ACPI support. ACPI features include:

• Plug and Play (including bus and device enumeration) and APM support normally contained in the BIOS

• Power management control of individual devices, add-in boards (some add-in boards may require an ACPI-aware driver), video displays, and hard disk drives

• Methods for achieving less than 30-watt system operation in the power-on/standby sleeping state

• A Soft-off feature that enables the operating system to power-off the computer

• Support for multiple wake up events (see Table 9 on page 36)

• Support for a front panel power and sleep mode switch. Table 7 lists the system states based

on how long the power switch is pressed, depending on how ACPI is configured with an ACPI-aware operating system.

Table 7. Effects of Pressing the Power Switch

…and the power switch is

If the system is in this state…

Off (ACPI G2/G5 – Soft off) Less than four seconds Power-on

On (ACPI G0 – working state) Less than four seconds Soft-off/Standby

On (ACPI G0 – working state) More than four seconds Fail safe power-off

Sleep (ACPI G1–sleeping state) Less than four seconds Wake up

Sleep (ACPI G1–sleeping state) More than four seconds Power-off

For information about Refer to

The CC820 board’s compliance level with ACPI Section 1.3, page 16

pressed for …the system enters this state

(ACPI G0 – working state)

(ACPI G1 – sleeping state)

(ACPI G2/G5 – Soft off)

(ACPI G0 – working state)

(ACPI G2/G5 – Soft off)

Product Description

1.10.1.2.1 System States and Power States

Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off. The operating system uses information from applications and user settings to put the system as a whole into a low-power state.

Table 8 lists the power states supported by the CC820 board along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states.

Table 8. Power States and Targeted System Power

Global States Sleeping States CPU States Device States Targeted System Power*

G0 – working state

G1 – sleeping state

G2/S5 S5 – Soft off.

G3 – mechanical off.

AC power is disconnected from the computer.

* Total system power is dependent on the system configuration, including add-in boards and peripherals powered by the

system chassis’ power supply.

** Dependent on the standby power consumpt i on of wake-up devices used in the system.

S0 – working C0 – working D0 – working

state

S1 – CPU stopped C1 – stop

grant

S3 – Suspend to RAM. Context saved to RAM.

Context not saved. Cold boot is required.

No power to the system.

No power D3 – no power

No power D3 – no power for

D1, D2, D3 – device specification specific.

except for wake up logic.

wake up logic, except when provided by battery or external source.

Full power > 60 W

5 W < power < 30 W

Power < 5 W **

No power to t he system so that service can be performed.

Intel Desktop Board CC820 Technical Product Specification

1.10.1.2.2 Wake Up Devices and Events

Table 9 lists the devices or specific events that can wake the computer from specific states.

Table 9. Wake Up Devices and Events

These devices/events can wake up the computer… …from this state

Power switch S1, S3, S5 RTC alarm S1, S3, S5 LAN (through Wake on LAN connector) S5 PME# S1, S3, S5 Modem S1, S3 IR command S1, S3 USB S1, S3 PS/2 keyboard S1, S3

NOTE

✏

The use of these wake up events from an ACPI state requires an operating system that provides full ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events.

1.10.1.2.3 Plug and Play

In addition to power management, ACPI provides controls and information so that the operating system can facilitate Plug and Play device enumeration and configuration. ACPI is used only to enumerate and configure CC820 board devices that do not have other hardware standards for enumeration and configuration. PCI devices on the CC820 board, for example, are not enumerated by ACPI.

Product Description

1.10.2 Hardware Support

CAUTION

If the Wake on LAN and Instantly Available technology features are used, ensure that the power supply provides adequate +5 V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. Refer to Section 2.11.3 on page 76 for additional information.

The CC820 board provides several hardware features that support power management, including:

• Power connector

• Fan connectors

• Wake on LAN technology

• Instantly Available technology

• Wake on Ring

• Resume on Ring

• Wake from USB

• Wake from PS/2 keyboard

• PME# wakeup support

Wake on LAN technology and Instantly Available technology require power from the +5 V standby line. The sections discussing these features describe the incremental standby power requirements for each.

Wake on Ring and Resume on Ring enable telephony devices to access the computer when it is in a power-managed state. The method used depends on the type of telephony device (external or internal) and the power management mode being used (APM or ACPI).

NOTE

✏

The use of Wake on Ring, Resume on Ring, and Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support.

1.10.2.1 Power Connector

When used with an ATX-compliant power supply that supports remote power-on/ -off, the CC820 board can turn off the system power through software control. To enable soft-off control in software, advanced power management must be enabled in the BIOS Setup program and in the operating system. When the system BIOS receives the correct APM command from the operating system, the BIOS turns off power to the computer.

With soft-off enabled, if power to the computer is interrupted by a power outage or a disconnected power cord, when power resumes, the computer returns to the power state it was in before power was interrupted (on or off).

For information about Refer to

The location of the power connector Figure 12, page 60 The signal names of the power connector Table 35, page 61 The ATX specification Section 1.3, page 16

Intel Desktop Board CC820 Technical Product Specification

1.10.2.2 Fan Connectors

The CC820 board has three fan connectors. The functions of these connectors are described in Table 10.

Table 10. Fan Connector Descriptions

Connector Function

System fan (Fa n 1) Provides +12 V DC for a system or chassis fan. The fan voltage can be switched

on or off, depending on the power management state of the computer. A tachometer feedback connection is also provided.

Power supply fan control (Fan 2)

Processor fan (Fan 3) Provides +12 V DC for a processor fan or active fan heatsink.

For information about Refer to

The location of the fan connectors Figure 12, page 60 The signal names of the fan connectors Section 2.8.2.3, page 60

Provides +12 V DC for a system or chassis fan. Th e fan voltage can be switched on or off, depending on the power management state of the computer. A tachometer feedback connection is also provided.

Product Description

1.10.2.3 Wake on LAN Technology CAUTION

For Wake on LAN technology, the 5-V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing Wake on LAN technology can damage the power supply. Refer to Section 2.11.3 on page 76 for additional information.

Wake on LAN technology enables remote wakeup of the computer through a network. The LAN subsystem PCI bus network adapter monitors network traffic at the Media Independent Interface.

†

Upon detecting a Magic Packet the computer. Depending on the LAN implementation, the CC820 board supports Wake on LAN technology in one of two ways:

• Through the Wake on LAN technology connector (APM or ACPI S5 only)

• Through the PCI bus PME# signal (for PCI 2.2 compliant LAN designs)

The Wake on LAN technology connector can be used with PCI bus network adapters that have a remote wake up connector, as shown in Figure 6. Network adapters that are PCI 2.2 compliant assert the wakeup signal through the PCI bus signal PME# (pin A19 on the PCI bus connectors).

frame, the LAN subsystem asserts a wakeup signal that powers up

Network Interface Card

PCI Slot

Remote

Wake up

connector

Wake on

LAN

technology

connector

Motherboard

OM08827

Figure 6. Using the Wake on LAN Technology Connector

For information about Refer to

The location of the Wake on LAN technology connector Figure 12, page 60 The signal names of the Wake on LAN technology connector Table 37, page 62

Intel Desktop Board CC820 Technical Product Specification

1.10.2.4 Instantly Available Technology CAUTION

Instantly Available technology enables the CC820 board to enter the ACPI S3 (Suspend-to-RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the power supply is off, the fans are off, and the front panel LED is amber if dual-color, or off if single-color.) When signaled by a wake-up device or event, the system quickly returns to its last known wake state. Table 9 on page 36 lists the devices and events that can wake the computer from the S3 state.

The CC820 board supports the PCI Bus Power Management Interface Specification. For information on the versions of this specification, see Section 1.3. Add-in boards that also support this specification can participate in power management and can be used to wake the computer.

The use of Instantly Available technology requires operating system support and PCI 2.2 compliant add-in cards and drivers.

The standby power indicator LED shows that power is still present at the DIMM and PCI bus connectors, even when the computer appears to be off. Figure 7 shows the location of the standby power indicator LED.

DS7E1

OM08894

Figure 7. Location of Standby Power Indicator LED

1.10.2.5 Wake on Ring

The operation of Wake on Ring can be summarized as follows:

• Powers up the computer from either the APM soft-off mode or the ACPI S3 states

• Requires two calls to access the computer:

 First call restores the computer  Second call enables access (when the appropriate software is loaded)

• Detects incoming calls differently for external as opposed to internal modems:

 For external modems, the CC820 board hardware monitors the Ring-Indicate (RI) input of

serial port A (serial port B does not support this feature)

 For internal modems, a cable must be routed from the modem to the Wake on Ring (WOR)

connector

The Wake on Ring connector is a manufacturing option.

For information about Refer to

The location of the Wake on Ring connector Figure 12, page 62 The signal names of the Wake on Ring connector Table 39, page 61

Product Description

1.10.2.6 Resume on Ring

The operation of Resume on Ring can be summarized as follows:

• Resumes operation from either the APM sleep mode or the ACPI S1 state

• Requires only one call to access the computer

• Detects incoming call similarly for external and internal modems; does not use the Wake on

Ring connector

• Requires modem interrupt be unmasked for correct operation

1.10.2.7 Wake from USB

USB bus activity wakes the computer from an ACPI S1 or S3 state.

NOTE

✏

Wake from USB requires the use of a USB peripheral that supports Wake from USB.

1.10.2.8 Wake from PS/2 Keyboard

PS/2 keyboard activity wakes the computer from an ACPI S1 or S3 state.

1.10.2.9 PME# Wakeup Support

When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1 or S3 state.

Intel Desktop Board CC820 Technical Product Specification