Design Guide
Page 14
...Support of AGP 4X, 400 MHz Direct RDRAM and the hub interface provides a balanced system architecture for audio and modem devices. By increasing memory bandwidth to 1.6 GB/s through the use of 400 MHz Direct RDRAM and increasing graphics ... new chipset component interconnect, the hub interface, is the third generation desktop chipset designed for the Intel® 820 chipset platform. Traditionally, the ISA interface was traditionally integrated into the I /O Controller Hub Datasheet (Order Number: 290655) • Intel® 82802AB/82802AC FirmWare Hub (FWH) Datasheet (Order Number: 290658)...
...Support of AGP 4X, 400 MHz Direct RDRAM and the hub interface provides a balanced system architecture for audio and modem devices. By increasing memory bandwidth to 1.6 GB/s through the use of 400 MHz Direct RDRAM and increasing graphics ... new chipset component interconnect, the hub interface, is the third generation desktop chipset designed for the Intel® 820 chipset platform. Traditionally, the ISA interface was traditionally integrated into the I /O Controller Hub Datasheet (Order Number: 290655) • Intel® 82802AB/82802AC FirmWare Hub (FWH) Datasheet (Order Number: 290658)...
Design Guide
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... the ICH In addition, the MCH provides arbitration, buffering and coherency management for more information regarding these interfaces. The Intel® 820 chipset provides the data buffering and interface arbitration required to ensure that system interfaces operate efficiently and provide ... controller, AC'97 digital controller and a hub interface for communication with the MCH. Introduction 1.3.1 configurable AC'97 audio and modem coder/decoders (codecs) instead of these interfaces. Additional functionality can be provided using the 82380AB PCI-ISA bridge. The MCH integrates...
... the ICH In addition, the MCH provides arbitration, buffering and coherency management for more information regarding these interfaces. The Intel® 820 chipset provides the data buffering and interface arbitration required to ensure that system interfaces operate efficiently and provide ... controller, AC'97 digital controller and a hub interface for communication with the MCH. Introduction 1.3.1 configurable AC'97 audio and modem coder/decoders (codecs) instead of these interfaces. Additional functionality can be provided using the 82380AB PCI-ISA bridge. The MCH integrates...
Design Guide
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...to the ICH. The MCH can be programmed to generate an SMI# or TCO interrupt due to disable the following functions: AC'97 Modem, AC'97 Audio, IDE, USB or SMBus. Once disabled, these functions no interrupts or power management events are designed to alert the...recover from a software lock. These system management functions are generated from system lockups without the aid of the system. Introduction 1.4.5 Manageability The Intel® 820 chipset platform integrates several messages to generate either an SMI#, NMI#, SERR#, or TCO interrupt. TCO Timer The ICH integrates ...
...to the ICH. The MCH can be programmed to generate an SMI# or TCO interrupt due to disable the following functions: AC'97 Modem, AC'97 Audio, IDE, USB or SMBus. Once disabled, these functions no interrupts or power management events are designed to alert the...recover from a software lock. These system management functions are generated from system lockups without the aid of the system. Introduction 1.4.5 Manageability The Intel® 820 chipset platform integrates several messages to generate either an SMI#, NMI#, SERR#, or TCO interrupt. TCO Timer The ICH integrates ...
Design Guide
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... from ISA. The ability to add cost-effective audio and modem solutions is also supported with an appropriate modem codec. 1-10 Intel®820 Chipset Design Guide This reduces configuration errors. For systems requiring both audio and a modem, there are software configurable. Several system options exist when implementing...97 digital link. The AC'97 Specification defines the interface between the system logic and the audio or modem codec known as telephone systems may vary. By using a split design, the audio codec can be on-board and the modem codec can be routed to the ICH.
... from ISA. The ability to add cost-effective audio and modem solutions is also supported with an appropriate modem codec. 1-10 Intel®820 Chipset Design Guide This reduces configuration errors. For systems requiring both audio and a modem, there are software configurable. Several system options exist when implementing...97 digital link. The AC'97 Specification defines the interface between the system logic and the audio or modem codec known as telephone systems may vary. By using a split design, the audio codec can be on-board and the modem codec can be routed to the ICH.
Design Guide
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...card. In addition to the Low Pin Count (LPC) interface. Consult your super I /O component has migrated to the super I /O component. Intel®820 Chipset Design Guide 1-11 The fifteen pin game port connector provides for lower cost super I /O components. It should include a keyboard and ...97 Digital Link AC'97 Audio/ Modem Codec d) AC'97 With Audio and Modem Codec ICH (241 mBGA) AC'97 Digital Link AC'97 Modem Codec AC'97 Audio Codec Modem Port Audio Ports Modem Port Audio Ports 1.4.7 Low Pin Count (LPC) Interface In the Intel® 820 chipset platform, the super...
...card. In addition to the Low Pin Count (LPC) interface. Consult your super I /O component has migrated to the super I /O component. Intel®820 Chipset Design Guide 1-11 The fifteen pin game port connector provides for lower cost super I /O components. It should include a keyboard and ...97 Digital Link AC'97 Audio/ Modem Codec d) AC'97 With Audio and Modem Codec ICH (241 mBGA) AC'97 Digital Link AC'97 Modem Codec AC'97 Audio Codec Modem Port Audio Ports Modem Port Audio Ports 1.4.7 Low Pin Count (LPC) Interface In the Intel® 820 chipset platform, the super...
Design Guide
Page 87
... link. Layout/Routing Guidelines Figure 2-51. ICH Codec Options Primary Audio (AC) Modem (MC) Audio (AC) Audio/Modem (AMC) Secondary None None Modem (MC) None As shown in card options. Intel®820 Chipset Design Guide 2-61 Resistor Requirements for allowing OEM plug-in the ...table, the ICH does not support two codecs of codecs: Table 2-15. Intel has developed a common...
... link. Layout/Routing Guidelines Figure 2-51. ICH Codec Options Primary Audio (AC) Modem (MC) Audio (AC) Audio/Modem (AMC) Secondary None None Modem (MC) None As shown in card options. Intel®820 Chipset Design Guide 2-61 Resistor Requirements for allowing OEM plug-in the ...table, the ICH does not support two codecs of codecs: Table 2-15. Intel has developed a common...
Design Guide
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... the daisy-chain topology. For increased part placement flexibility, there are two routing methods for modem codecs as it helps ease international certification of the modem. The AC'97 interface can be on a riser card. Layout/Routing Guidelines The AMR ...specification provides a mechanism for AC'97 codecs to be routed using 5 mil traces with 5 mil space between the traces. Figure 2-52. Daisy-Chain Topology AC'97 Trace Length Requirements A ICH 5" Max M R 3" Max Codec 2-62 Intel...
... the daisy-chain topology. For increased part placement flexibility, there are two routing methods for modem codecs as it helps ease international certification of the modem. The AC'97 interface can be on a riser card. Layout/Routing Guidelines The AMR ...specification provides a mechanism for AC'97 codecs to be routed using 5 mil traces with 5 mil space between the traces. Figure 2-52. Daisy-Chain Topology AC'97 Trace Length Requirements A ICH 5" Max M R 3" Max Codec 2-62 Intel...
Design Guide
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...to the codec used as the timebase for crystal or oscillator requirements. On the Intel® 820 chipset platform, the ICH supports Wake on Ring from a 24.576... have a weak (10 KΩ) pulldown to the modem codec. These recommendations do not represent the only implementation or a complete checklist, but provides recommendations based on -board codec requires a pulldown. 2.14.1 AC'97 Signal ...50pF. 2.14.2 AC'97 Motherboard Implementation The following design considerations are only enabled when the AC-Link Shut Off bit in the design. If the on-board codec can be disabled, ...
...to the codec used as the timebase for crystal or oscillator requirements. On the Intel® 820 chipset platform, the ICH supports Wake on Ring from a 24.576... have a weak (10 KΩ) pulldown to the modem codec. These recommendations do not represent the only implementation or a complete checklist, but provides recommendations based on -board codec requires a pulldown. 2.14.1 AC'97 Signal ...50pF. 2.14.2 AC'97 Motherboard Implementation The following design considerations are only enabled when the AC-Link Shut Off bit in the design. If the on-board codec can be disabled, ...
Design Guide
Page 90
... by setting the shutoff bit to provide discrete pulldown resistors. • PC_BEEP should be pull-down . 2-64 Intel®820 Chipset Design Guide AUDIO_MUTE#: No connect on the motherboard. - An AMR card using this standby/dual supply should implement a powerdown pin, per the AC'97 2.1 .... MONO_PHONE: Connect top onboard audio codec if supported. - However, if the AC-link is connected to an onboard codec that a modem codec be attached to be active, then there should be provided for external pull-down resistor. MONO_OUT/PC_BEEP: Connect to SPKR output from...
... by setting the shutoff bit to provide discrete pulldown resistors. • PC_BEEP should be pull-down . 2-64 Intel®820 Chipset Design Guide AUDIO_MUTE#: No connect on the motherboard. - An AMR card using this standby/dual supply should implement a powerdown pin, per the AC'97 2.1 .... MONO_PHONE: Connect top onboard audio codec if supported. - However, if the AC-link is connected to an onboard codec that a modem codec be attached to be active, then there should be provided for external pull-down resistor. MONO_OUT/PC_BEEP: Connect to SPKR output from...
Design Guide
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...5V Regulator CK133-2.5: 2.5V CK133-3.3: 3.3V 1.8V Regulator VDDQ Regulator 3.3VSB Regulator USB Cable Power: 5V 1A S0, S1; 1mA S3, S5 AC'97 Modem Codec: 5V Slot1 Core: VCC_VID 18.6A S0, S1 Slot1 VTT: 1.5V 2.7A S0, S1 Slot1 VCC5: 5V 1A S0, S1 Slot1 VCC3: 3....5V VCCVID VDDQ 3.3V VTT 3.3VSB 12V 2.5VSBY 2.5V The examples given in this Design Guide are powered. System Design Considerations 6.1.2 Intel® 820 Chipset Customer Reference Board Power Delivery Figure 6-1 shows the power delivery architecture for in the 2A, 1.8V requirement Shaded regulators/components are on in S3, S5...
...5V Regulator CK133-2.5: 2.5V CK133-3.3: 3.3V 1.8V Regulator VDDQ Regulator 3.3VSB Regulator USB Cable Power: 5V 1A S0, S1; 1mA S3, S5 AC'97 Modem Codec: 5V Slot1 Core: VCC_VID 18.6A S0, S1 Slot1 VTT: 1.5V 2.7A S0, S1 Slot1 VCC5: 5V 1A S0, S1 Slot1 VCC3: 3....5V VCCVID VDDQ 3.3V VTT 3.3VSB 12V 2.5VSBY 2.5V The examples given in this Design Guide are powered. System Design Considerations 6.1.2 Intel® 820 Chipset Customer Reference Board Power Delivery Figure 6-1 shows the power delivery architecture for in the 2A, 1.8V requirement Shaded regulators/components are on in S3, S5...
Design Guide
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... liability or warranties relating to change. C urrent characterized errata are the property of their respective ow ners. 5 4 A TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD REV: 1.01 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 11-...F (2 RIMM) D Title Cover Sheet Block Diagram Processor Connector Clock Synthesizer MCH ICH FWH C RIMM Sockets Super I/O A udio Audio/Modem Riser LAN Sy s tem A GP Connector PCI Connectors IDE Connectors B USB Connectors Parallel Port Serial Ports Keyboard/Mouse/Floppy Ports Game ...
... liability or warranties relating to change. C urrent characterized errata are the property of their respective ow ners. 5 4 A TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD REV: 1.01 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 11-...F (2 RIMM) D Title Cover Sheet Block Diagram Processor Connector Clock Synthesizer MCH ICH FWH C RIMM Sockets Super I/O A udio Audio/Modem Riser LAN Sy s tem A GP Connector PCI Connectors IDE Connectors B USB Connectors Parallel Port Serial Ports Keyboard/Mouse/Floppy Ports Game ...
Design Guide
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...2 RIMM Modules C IDE Primary UltraDMA/66 IDE Secondary PCI CNTRL USB Port 1 USB ICH PCI ADDR/DATA USB Port 2 LPC Bus AC'97 Audio Modem AC'97 Link B FWH 82559 LAN SIO Keyboard Mouse Floppy Parallel Serial 1 Serial 2 Game Conn A 8 7 6 5 4 PCI CONN 4 PCI... 16 93C46A 16 AD1881 13 CK133 5 DRCG 5 FWH 10 GD75232 25 LM4880 14 LPC47B27X 12 ADM1021 3 B TPS2042 23 A TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD REV: BLOCK DIAGRAM 1.01 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET:...
...2 RIMM Modules C IDE Primary UltraDMA/66 IDE Secondary PCI CNTRL USB Port 1 USB ICH PCI ADDR/DATA USB Port 2 LPC Bus AC'97 Audio Modem AC'97 Link B FWH 82559 LAN SIO Keyboard Mouse Floppy Parallel Serial 1 Serial 2 Game Conn A 8 7 6 5 4 PCI CONN 4 PCI... 16 93C46A 16 AD1881 13 CK133 5 DRCG 5 FWH 10 GD75232 25 LM4880 14 LPC47B27X 12 ADM1021 3 B TPS2042 23 A TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD REV: BLOCK DIAGRAM 1.01 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET:...
Design Guide
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R68 R108 10K R125 10K 8 7 6 5 4 3 2 AC'97 Audio/Modem Riser D VCC3_3SBY VCC3_3 VCC5 VCC12 VCC12- A11 KEY KEY B12 GND[3] B13 RESV[3] B14 RESV[4] AMR_CONNECTOR KEY KEY GND[9] A12 S/...AC97_BITCLK A23 VCC5 MONO_PHONE 13 AC97_OC# 23 AC97_USB+ 23 AC97_USB23 VCC3_3SBY R113 0K AC_SYNC 9,13 AC_SDATAIN1 9 AC_SDATAIN0 9,13 AC_BITCLK 9,13 1 D C B A A TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD REV: AUDIO/MODEM RISER 1.01 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 15 OF 36 8 7 6 5 4 ...
R68 R108 10K R125 10K 8 7 6 5 4 3 2 AC'97 Audio/Modem Riser D VCC3_3SBY VCC3_3 VCC5 VCC12 VCC12- A11 KEY KEY B12 GND[3] B13 RESV[3] B14 RESV[4] AMR_CONNECTOR KEY KEY GND[9] A12 S/...AC97_BITCLK A23 VCC5 MONO_PHONE 13 AC97_OC# 23 AC97_USB+ 23 AC97_USB23 VCC3_3SBY R113 0K AC_SYNC 9,13 AC_SDATAIN1 9 AC_SDATAIN0 9,13 AC_BITCLK 9,13 1 D C B A A TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD REV: AUDIO/MODEM RISER 1.01 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 15 OF 36 8 7 6 5 4 ...
Design Guide
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R68 R108 10K R125 10K 8 7 6 5 4 3 2 AC'97 Audio/Modem Riser D VCC3_3SBY VCC3_3 VCC5 VCC12 VCC12- VCC3_3SBY 4.7K U3 14 PRI_DWN_RST# 6 4 PRI_DWN_U 5 C 15 SN774LVC08A 3 MONO_OUT 15 PRI_DWN# 1 JP2 2 11,15 11 AC_SDATAOUT AC_RST#...MONO_PHONE 15 AC97_OC# 25 AC97_USB+ 25 AC97_USB25 AC_SYNC 11,15 AC_SDATAIN1 11 AC_SDATAIN0 11,15 AC_BITCLK 11,15 1 D C B A A TITLE: INTEL(R) 820 CHIPSET DUAL PROCESSOR CUSTOMER REFERENCE BOARD REV: AUDIO/MODEM RISER 3.03 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 17 OF 38...
R68 R108 10K R125 10K 8 7 6 5 4 3 2 AC'97 Audio/Modem Riser D VCC3_3SBY VCC3_3 VCC5 VCC12 VCC12- VCC3_3SBY 4.7K U3 14 PRI_DWN_RST# 6 4 PRI_DWN_U 5 C 15 SN774LVC08A 3 MONO_OUT 15 PRI_DWN# 1 JP2 2 11,15 11 AC_SDATAOUT AC_RST#...MONO_PHONE 15 AC97_OC# 25 AC97_USB+ 25 AC97_USB25 AC_SYNC 11,15 AC_SDATAIN1 11 AC_SDATAIN0 11,15 AC_BITCLK 11,15 1 D C B A A TITLE: INTEL(R) 820 CHIPSET DUAL PROCESSOR CUSTOMER REFERENCE BOARD REV: AUDIO/MODEM RISER 3.03 R PCD PLATFORM DESIGN DRAWN BY: PROJECT: 1900 PRAIRIE CITY ROAD FOLSOM, CALIFORNIA 95630 LAST REVISED: SHEET: 17 OF 38...