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TriGem Micro-ATX Motherboard (COGNAC)
Hardware Document
July, 27 1999
Revision 1.0
Prepared by JS Kim
Approved by SE Hong
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Document Revision History
Released date Revision Description
June, 10 1999 Rev. 0.9 First released version for this document.
This document describes the major specification of the Cognac
motherboard and the functional feature to be extended by the customer.
The motherboard revision number is EVT3(PR1)
July, 27 1999 Rev. 1.0 1. PCB Rev Up (AC)
2. It is modified in the connector option of M/B
Marketing Information
Address 45-2 Yoidodong, Youngdeungpoku, Seoul, Korea
Telephone 82-2-3774-4251 (International Business Team)
Fax 82-2-786-9478
Email
jhpark
@trigem.co.kr (Jin Hyun Park)
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Technical Support
Address 1055 Shingil-Dong, Ansan, Kyunggi-Do, Korea
Telephone 82-345-491-9528 (Ext. 608)
Fax 82-345-593-6721
Email sehong@trigem.co.kr (Seung Eung Hong)
ycpark@trigem.co.kr (Young chul Park)
jskim2@trigem.co.kr (Jin Soo Kim)
User’s Notice
No part of this product, including the schematics and BIOS may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language in any form by any means
without the express written permission of TriGem Computer Inc. except the document kept by the
purchaser for backup purposes.
© Copyright 1999 TriGem Computer Inc. All rights reserved
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Contents of Table
I. Introduction
1. Generation Description ------------------------------------------------------------ 4
2. Function Block Diagram ------------------------------------------------------------ 6
II. System Overview
1. Major Units ----------------------------------------------------------------------------- 7
2. Upgrade ability ------------------------------------------------------------------------- 8
2-1. Processor -------------------------------------------------------------------------- 8
2-2. Main chipset Configuration ---------------------------------------------------- 9
2-3. Memory ----------------------------------------------------------------------------- 8
2-4. BIOS --------------------------------------------------------------------------------- 9
2-5. Expansion Slot -------------------------------------------------------------------- 9
2-6. Advanced Configuration and Power Interface (ACPI) ------------------- 10
2-7. Manufacturing Options ---------------------------------------------------------- 10
III. Jumper & Connector Description
1. Motherboard Jumper Setting ------------------------------------------------------ 11
1-1. Selection for Processor CPU Clock ------------------------------------------ 11
1-2. Other functionality --------------------------------------------------------------- 11
1-3. PCI graphics device function ------------------------------------------------- 12
1-4. OEM/ODM selector -------------------------------------------------------------- 12
2. Motherboard Connector Description --------------------------------------------- 14
2-1.Motherboard Internal Connector --------------------------------------------- 14
2-2.Motherboard External I/O Port ------------------------------------------------ 16
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I. Introduction
The COGNAC Micro ATX motherboard offers a time to market consumer and corporate desktop solution
featuring the Intel Celeron PPGA processor with 66/100MHz front side bus and the Whitney chipsets in a Micro
ATX low profile motherboards. In addition, the integrated onchip graphics controller supports 4MB of SDRAM
purpose of Display cache memory.
The Cognac motherboard was designed to be highly minimized system cost. In this effort a smaller form
factor, Micro-ATX, gives the greater space economy and more affordable systems. Integrating onchip graphics
controller and SDRAM, as well as onchip AC’97 audio solution with AC97 Codec onto the motherboard eliminates
the need for more expensive graphic and audio add-in cards. The end result is a system platform with a primary
component level of integration with translates into affordable solution for entry level users.
1. General description
Motherboard
Small PCB size in the Micro ATX form factor (ATX V1.2 form factor)
238mm * 238mm * 1.6t (4 Layers)
Processor
Intel Socket-370 (370pin PPGA Socket)
- Intel Celeron 400/433/466/500MHz processor @66MHZ Host clock
- Intel TBD @100MHZ Host clock
Main Chipset
Graphics and Memory Controller Hub (GMCH) : Intel FW82810-DC100 / FW82810
I/O Controller Hub (ICH) : Intel FW82801AA / FW82801AB
AC 97’ Controller : Intel FW82801AA/AB included
Audio Codec : Cirrus CS4299-JQ
Super I/O : ITE IT8702F-A
DC-DC Converter : HARRIS HIP6021CB
Clock : ICS 9250BF-10 (66/100MHz host clock,
100Mhz SDRAM Clock support)
Memory Configuration
System Memory
- Two banks of 3.3V SDRAM (168pin unbuffered DIMM) with max 256MB
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- SDRAM operation in 100MHz front side bus
Display Cache Memory
- Two 1M*16 3.3V SDRAM (4MB)
- SDRAM operation in 100MHz
Flash Memory
- Intel N82802AB, 4Mb PLCC Type
- FirmWare Hub(FWH) Interface for platform operation
- Address/Address Multiplexed Interface for programming during manufacturing
I/O Feature
Integrated standard I/O functions in the rear side
- One multi-mode parallel port
- One FIFO serial ports and optional port by header type
- PS/2 styles keyboard and mouse port
- Two USB port
- Three audio jack for Speaker output ,Line input and MIC input
- One Joystick port
I/O Controller (IT8702F-A)
- Low Pin Count (LPC) interface with Host controller(ICH)
- FDC, Parallel, Serial, keyboard/Mouse supported
- Joystick port and MPU-401 compatible MIDI interface
Audio Subsystem
Intel 82801AA/AB AC’97 Audio/Modem controller
Independent channels for PCM in and PCM out, Microphone in
Left and Right audio channels
16 bit sample resolution
multiple sample rates
AC’97 2.1 compliant AC-link interface
GMCH Subsystem
Host/Memory(DRAM) Controller features
- 66/100Mhz System Bus Frequency
- 100Mhz system memory bus frequency
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- Refresh mechanism: CBR only supported
- Support for Asymmetrical DRAM addressing only
- Support for Asymmetrical DRAM addressing only
- Support for 64-bit data interface
- Suspend to RAM support
Graphics Controller features
- 3D Hyper Pipelined Architecture ( PDP, PPI)
- full 2D H/W Acceleration
- Motion Video Acceleration
- H/W motion Compensation Assistance for S/W MPEG2 Decode
- Software DVD at 30fps
3D Graphics features
- Flat & Gouraud Shading
- Mip Maps with Bilinear and Anisotropic Filtering
- Fogging Atmospheric Effects
- Z Buffering
- 3D Pipe 2D Clipping
- Backface Culling
- Per Pixel Perspective Correction Texture Mapping
- Texture Compositing
- Texture Color Keying/Croma Keying
Display features
- Integrated 24-bit 230Mhz RAMDAC
- Gamma Corrected Video
- DDC2B Compliant
Graphics memory controller features
- Intel D.V.M Technology (Dynamic Video Memory)
Display Cache Interface (FW82810-DC100 only)
ICH Subsystem
PCI Bus Interface
Integrated IDE controller
USB
AC’97 Link for Audio and Modem
Interrupt Controller
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Low Pin Count Interface
SM Bus
Firmware Hub Interface
GMCH,ICH vs GMCH0,ICH0 Configuration Difference
GMCH, ICH GMCH0, ICH0
Display Cache (4MB) Support No Display Cache (4MB) Support
Up to Ultra 66 ATA Spec. Support Up to Ultra 33 ATA Spec. Support
6 PCI Slots Support 4 PCI Slots Support
Alert on LAN Support N/A
Note : Pavilion 6530/6535 uses the GMCH0, ICH0
2. Function Block Diagram
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DCMD
DCMA
RGB
Intel Celeron
PGA 370
DIMM Modules
MD
MA
HAHD
Video
Speaker
MIC
Line in
2M 2M
SDRAM
DCMD
DCMA
GMCH / GMCH0
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II. System Overview
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Code
c
CS4299
HDD
CDROM
HD Data
HA Address
PCI Slot
I/O
IT8702F
Hub
Keyboard
Mouse
Serial
Parallel
USB
FWH
ICH / ICH0
Joystick
Midi
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1. Major Units
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Audio Amp
AC97 codec
AMR Slots
PCI Slots
Serial driver 2
Display cache
(Not used)
FW82801AB
82802AB(ROM)
CDR CONNECTOR
HDD CONNECTOR
IT8702
FDD CONNECTOR
CPU
FW82810
HIP6021CB
9250BF-10
DIMM
RTC Battery
Serial driver 1
POWER CONN
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2. Upgradeability
2-1. Processor
COGNAC motherboard provides the 370pin PGA370 socket that is not backward compatible with ZIF socket-7
processors The Processor’s VID pins automatically program the voltage regulator on the motherboard to the
required processor voltage. The motherboard supports processors that run internally at 300/333/366/400
/433/466/500MHz.
Supported Intel Celeron Processors (PPGA Socket Type)
Host Clock 66MHz : Celeron 400MHz
: Celeron 433MHz
: Celeron 466MHz
: Celeron 500MHz
: tbd
Host Clock 100MHz : tbd
Supported Cyrix Goby Processors (PPGA Socket Type)
Host Clock 66MHz : tbd
2-2. Main Chipset Config
Cognac Motherboard has two main chipset configurations.
810DC100 Configuration
GMCH + ICH : FW82810DC100 + FW82801AA
810L Configuration
GMCH0 + ICH0 : FW82810 + FW82801AB
It’s applied to Cognac, Cognac+
2-3. Memory
The motherboard has two, dual inline memory module (DIMM), minimum 16MB to maximum 256MB memory
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size. The BIOS can automatically detect the memory type, size, and speed through SMBUS interface between
the core chipset and DIMM module.
The motherboard supports the following memory features
3.3V and unbuffered168-pin DIMM
Voltage detection
3.3V Version 5V Version
Unbuffered detection
Unbuffered Buffered
100MHz unbuffered SDRAM (PC100)
Non-ECC memory only
Single or double-sided DIMM with the following types (per each side of each DIMM)
DIMM size Non-ECC memory DIMM size Non-ECC memory
8MB 4*(1M * 16 bit) 64MB 8*(8M * 8 bit)
16MB 8*(2M * 8 bit) 64MB 4*(8M * 16 bit)
32MB 4*(4M * 16 bit) 128MB 8*(16M * 8 bit)
32MB 2*(4M * 32 bit)
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2-4 BIOS
The motherboard uses a TriGem-Phoenix BIOS, which is stored in flash memory and can be upgraded using a
disk-based program. A new version of the BIOS can be upgraded from a diskette using the Flash Memory
Update utility.
Flash memory organization
Address (Hex) Size Functional description
FFFF0000 - FFFFFFFF 64KB Boot block
FFF82000 - FFFEFFFF 440KB Main BIOS block
FFF80000 - FFF81FFF 8KB ESCD block
On-board device management
The BIOS can manage the devices on the motherboard over the CMOS setup menu.
Device Description CMOS setup menu Default value
PS/2 Mouse Intel 82801AB (ICH) Enabled / Disabled / Auto Detect Auto Detect
Legacy USB Intel 82801AB (ICH) Enabled/ Disabled Disabled
AC’97 Audio ICH with CS4299 Codec Enabled / Disabled Enabledd
On board FDC Super I/O (ITE8702) Enabled / Disabled Enabled
On board serial A Super I/O (ITE8702) Enabled / Disabled Enabled
On board serial B Super I/O (ITE8702) Enabled / Disabled Disabled
On board parallel Super I/O (ITE8702) Enabled / Disabled Enabled
Midi port Super I/O (ITE8702) Enabled / Disabled / Auto Auto
Game port Super I/O (ITE8702) Enabled / Disabled / Auto Auto
2-5. Expansion Slot
The motherboard support PCI and GMCH function. PCI functions are extended to the additional slot with 3 PCI,
and GMCH function is designed in the motherboard with Integrated System/Graphics controller.
PCI configuration space map
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Bus number Device number Function number Device
00 30 00 Intel 82801AB(ICH0) PCI Bridge
00 31 00 Intel 82801AB(ICH0) LPC Bridge
00 31 01 Intel 82801AB(ICH0) Bus master IDE
00 31 02 Intel 82801AB(ICH0) USB Host Controller
00 31 03 Intel 82801AB(ICH0) SM Bus Controller
00 31 04 Reserved
00 31 05 Intel 82801AB(ICH0) AC’97 Audio Controller
00 31 06 Intel 82801AB(ICH0) AC’97 Modem Controller
00 31 07 Reserved
00 00 00 Intel 82810(GMCH0) System/Graphics
Controller
00 01 00 Intel 82810(GMCH0) Internal Graphics Device
01 0E 00 PCI slot1
01 0D 00 PCI slot2
01 0C 00 PCI slot3
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PCI interrupts & Master Number Routing Maps
Intel 82801AB (ICH0) PCI bridge has four programmable interrupt request input signals. Any PCI interrupt
source connects to one of these interrupt signals and It’s assigned to the free proper interrupt number by PnP
BIOS.
ICH INT
signals
First
PCI slot
Second
PCI slot
Third
PCI slot
ICH0
USB device
ICH0
SM Bus
PIRQA INTA INTB INTC
PIRQB INTB INTC INTD
PIRQC INTC INTD INTA
PIRQD INTD INTA INTB INTC INTB
Master REQ0 REQ1 REQ2
IDSEL AD30 AD29 AD27
ICH INT
signals
ICH0
AC’97 Audio
ICH0
AC’97 Modem
GMCH
Internal Graphics Device
PIRQA
PIRQB
PIRQC
PIRQD INTB INTB INTA
Master
IDSEL
2-6. Advanced Configuration and Power Interface (ACPI)
The motherboard and system BIOS supports the ACPI that requires an ACPI-aware operating system such as
Windows-NT 5.0 or Windows 98 SE. ACPI feature include
Plug and play and APM functionality normally contained in the BIOS
Power management control of individual devices : add-in cards, hard disk drives, USB devices, and
Video
A soft-off feature that enables operating system to power off the computer
Support for multiple wakeup events
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Indication LED for normal mode (Green), standby mode (Blinking Green) function is dependent on the
LED logic.
Wakeup devices and events
Wakeup device Wakeup events and functionality
Power switch Wakeup from Power-off status and S1Status
LAN Wakeup from S1 status
Modem Wakeup from S1 status
2-7. Manufacturing Options
The motherboard has several manufacturing options according to OEM/ODM requirement. Make sure that
these options can be applied in the assembly stage, and it’s impossible to upgrade or change in the customer
field.
Option items Selectable functionality Feature changes
Joystick port Front side / Rear side Use additional board or not
USB port Front side / Rear side Use additional board or not
Super I/O IT8712 / IT8702 Include H/W monitoring or not
Graphics controller FW82810 / FW82810-DC100 Display Cache or not
Display Cache memory None / 4MB Display Cache or not
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III. Jumper & Connector Description
1. Motherboard Jumper Setting
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1-1. Selection for Processor CPU Clock
Intel Celeron PPGA Processor is auto set the core to bus frequency ratio.
1-2. System functionality (J1,2,3,4,5,8 is TG Option)
DIP Switch Function 1-2(Default) 2-3
J6 Clear CMOS Disable Enable
J7 Audio Function(AMR)
Primary Down
Enable Disable
* Note : Pavilion 6530 uses J6,7
Pavilion 6535 uses J6
1-3. PCI graphics device function
No jumper does set the functionality of the GMCH graphics controller
PCI Graphics device operates automatically if PCI Graphics card is inserted .
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J1 – J8
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1-4. OEM/ODM selector (TG Option)
These jumpers (J1, J2 & J3) will be optional parts for the OEM/ODM logo message selector of Trigem.
BIOS
Factory
Setting
(J1,2,3
J2(2-3), J3(2-3),J4(2-3) Reserved J2(2-3), J3(2-3),J4(1-2) Reserved
J2(2-3), J3(1-2), J4(2-3) Reserved J2(2-3), J3(1-2), J4(1-2) Reserved
J2(1-2), J3(2-3), J4(2-3) Reserved J2(1-2), J3(2-3), J4(1-2) Reserved
J2(1-2), J3(1-2), J4(2-3) Reserved J2(1-2), J3(1-2), J4(1-2) Reserved
* Factory Default Setting - bold type text
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2. I/O Header Connector Description
2-1. Motherboard Internal Connector
CPU FAN connector (CN53)
Pin number Signal description
1 GND
2 FAN power
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1 2 3
CN53
MODEM SOUND(CN46)
MODEM SOUND(CN6)
VIDEO SOUND(CN45)
CD SOUND(CN43)
CD SOUND(CN44)
FAN CONNECTOR
(CN53)
JOY_USB (CN72)
HPD INDICATOR(CN73)
TG INDICATOR(CN48)
LAN CONNECTOR
(CN50)
FAN CONNECTOR
(CN54)
RING CONNECTOR(CN51)
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3 Tachometer (speed)
System Chassis FAN connector (CN54)
Pin number Signal description
1 GND
2 FAN control
3 Tachometer (Speed)
(GND)
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1 2 3
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PC/PCI connector (CN23) (TG Option)
Pin Signal description Pin Signal description
1 /PCGNTA 4 /PCREQA
2 GND 5 N.C
3 Key 6 SER_IRQ
Joystick & USB connector (CN72) (TG Option)
Pin Signal description Pin Signal description
1 VCC 9 VCC
2 GD(4) 10 GD(6)
3 GD(0) 11 GD(2)
4 GND 12 MIDI OUT
5 GND 13 GD(3)
6 GD(1) 14 GD(7)
7 GD(5) 15 MIDI IN
8 VCC 16 Key
1 GND 3 Positive DATA
2 Negative DATA 4 VCC
Video Sound (CN45) (TG Option)
Pin Signal description Pin Signal description
1 Left Sound 3 GND
2 GND 4 Right Sound
Modem Sound (CN46, CN6) (TG Option)
Pin Signal description Pin Signal description
1 MIC 4 GND
2 GND 5 MONO IN
3 MONO OUT
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2 4 6
1 3 5
1 2 3 4
1 2 3 4 5
CN46
3 1 8 7 6 5 4 3 2 1
4 2 16 15 14 13 12 11 10 9
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Pin Signal description Pin Signal description
1 MONO IN 3 GND
2 GND 4 MIC
CD Sound (CN43(TG Option), CN44)
Pin Signal description Pin Signal description
1 Left Sound 3 GND
2 GND 4 Right Sound
Pin Signal description Pin Signal description
1 GND 3 GND
2 Left Sound 4 Right Sound
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1 2 3 4
ATAPI CD (CN43)
1 2 3 4
CN6
1 2 3 4
Mitsumi CD (CN44)
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LAN Wakeup (CN50) (TG Option)
Pin Signal description Pin Signal description
1 +5VSB 3 LANWK
2 GND
Modem Wakeup (CN51) (TG Option)
Pin Signal description Pin Signal description
1 Modem Ring 3 +5VSB
2 GND
HPD Indicator Header (CN73)
Pin Signal description
1 NC
2 GND
3 LED POWER
4 NC
5 LED POWER
6 HDD access signal
7 GND
8 Power-ON switch signal
Aux. Indicator Header (CN49) (TG Option)
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1 2 3 4
1 2 3 4
PWR HDD DC/SW
8 9
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Pin Signal description Pin Signal description
1 Key lock Signal to Super I/O 2 GND
3 Key 4 Reset signal
5 GND 6 Key
7 Sleep Function signal 8 GND
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2-2. Motherboard External I/O Port
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Joystick port
Line-in Speaker
Mic
Parallel port Serial port
Monitor USB Keyboard/Mouse
Mic in
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Trademarks
Microsoft, Windows and Windows NT are registered trademarks of Microsoft Corporation.
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