TriGem Micro-ATX Motherboard (FLORIDA-C)
Table of Contents
I. Introduction
1. Generation Description ------------------------------------------------------------ 2
2. Function Block Diagram ------------------------------------------------------------ 4
II. System Overview
1. Major Units ----------------------------------------------------------------------------- 5
2. Upgradeability ------------------------------------------------------------------------- 6
2-1. Processor -------------------------------------------------------------------------- 6
2-2. Memory ----------------------------------------------------------------------------- 6
2-3. BIOS --------------------------------------------------------------------------------- 7
2-4. Expansion Slot -------------------------------------------------------------------- 7
2-5. Advanced Configuration and Power Interface (ACPI) ------------------- 8
2-6. Manufacturing Options ---------------------------------------------------------- 8
III. Jumper & Connector Description
1. Motherboard Jumper Setting ------------------------------------------------------ 9
1-1. Selection for Processor CPU Clock ------------------------------------------ 9
1-2. Other functionality --------------------------------------------------------------- 9
1-3. AGP graphics device function ------------------------------------------------- 10
1-4. OEM/ODM selector -------------------------------------------------------------- 10
2.Motherboard Connector Description --------------------------------------------- 11
2-1.Motherboard Internal Connector --------------------------------------------- 11
2-2.Motherboard External I/O Port ------------------------------------------------ 14
3.Joystick & USB daughter board --------------------------------------------------- 14
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I. Introduction
The Florida-C Micro ATX motherboard offers a time to market consumer and corporate desktop solution
featuring the Intel Celeron PPGA processor with 66MHz front side bus and the Intel 440LX AGP sets in a Micro
ATX low profile motherboards. In addition, the integrated graphics components have been upgraded with the AGP
graphics controller and 4 or 8MB of SDRAM.
The Florida-C 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 AGP graphics
controller and SDRAM, as well as PCI 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
T Motherboard
• Small PCB size in the Micro ATX form factor (ATX V1.2 form factor)
• 227mm * 244mm * 1.6t (4 Layers)
T Processor
• Intel Socket-370 (370pin PPGA Socket)
• Intel Celeron 300A/333/366/400MHz processor support
T Main Chipset
• AGPsets PCI/AGP Controller : Intel 440LX
• PCI bus mastering controller, and Power management interface : Intel
• Graphics : ATi RAGE-3D IIc with 4 or 8 MB SDRAM
• Audio : Crystal CS4280 with Ac97 Codec(CS4297)
• Super I/O : ITE8673
• DC-DC Converter : SC1164
• Clock : ICS9148BF (66MHz host clock support)
PIIX4e
T Memory Configuration
• System Memory
- Two banks of 3.3V EDO/SDRAM (168pin unbuffered DIMM) with max 256MB
- EDO/SDRAM operation in 66MHz front side bus
• Flash Memory : Programmable 2MB Flash memory
T 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
- One USB port
- Three audio jack for Line input, Speaker output and MIC input
• Integrated standard I/O functions in the front side
- One Joystick port
- One USB port
T Audio Subsystem
• Crystal CS4280 PCI audio controller with fully DOS Games compatibility via PC/PCI, DDMA support
• Compatible with sound blaster, sound blaster pro, and window sound system
• Enhanced Stereo full duplex operation
• Advanced MPC3-compatible input and output mixer
• Joystick port and MPU-401 compatible MIDI interface
• PC97 and PC98 compliance(and compliance with preliminary PC99)
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T Graphics Subsystem
• General features
- Fully PC98 compliant
- Triple 8-bit palette DAC with gamma correction for true WYSIWYG color
- DDC1 and DDC2B+ for plug and play monitors
- Flexible graphics memory configuration : 4MB or 8MB SDRAM(Manufacture option)
• 2D Acceleration
- Hardware acceleration of Bitblt, Line Draw, Polygon / Rectangle Fill Masking, Monochrome
Expansion, Panning/Scrolling, Scissoring, full ROP support and hardware cursor
- Acceleration in 8/16/24/32bpp modes.
- Increased displays FIFO from 24 to 32 DWORDS
• 3D Acceleration
- Hidden surface removal using 16-bit z-buffering
- Full support for Direct3D texture lighting
- Dithering support in 16bpp for near 24bpp quality in less memory
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2. Function Block Diagram
Intel Celeron
PGA 370
SDRAM
DIMM Modules
HDD
CDROM
XD
BIOS
MA
MD
HD Data
HA Address
SD
SA
PAC
AD
PIIX4e
HAHD
GAD
ATi RAGE IIc or
ATi RAGE XC
SD
GMAGMD
CS4280
RGB
[ Real Side
Code
CS4297
Port ]
PCI Slot
c
Video
Speaker
MIC
Line in
FDD
Keyboard
Mouse
Serial
Parallel
USB
I/O
8679F
ITE8673
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SA
ISA Slots
Joystick
USB
II. System Overview
1. Major Units
AC97 Codec
CS4297
AGP Graphic
ATi Rage IIc
Sound Chip
CS4280-CM
Intel
82371EB
PIIX4e
Battery(3V)
Flash ROM
2MB (System+Video)
Regurater
SC1164
Clock
ICS9148BF
PGA 370
Intel
82443LX
2 DIMM
Sockets
Super I/O
ITE8673
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2. Upgradeability
2-1. Processor
FLORIDA motherboard provides the 370pin PGA370 socket that is not backward compatible with ZIF socket-7
processors The Processor’s VID pin 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 MHz.
T Supported Intel Celeron Processors (PPGA Socket Type)
• Intel : Celeron 300MHz
: Celeron 333MHz
: Celeron 366MHz
: Celeron 400MHz
2-2. Memory
The motherboard has two, dual inline memory module (DIMM), minimum 16MB to maximum 256MB memory
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
• 66MHz and 100MHz unbuffered SDRAM, and also EDO DRAM
• Non-ECC memory and ECC memory support
• Single or double-sided DIMM with the following types
DIMM size Non-ECC memory ECC memory
16MB 2Mbit * 64bit 2Mbit * 72bit
32MB 4Mbit * 64bit 4Mbit * 72bit
64MB 8Mbit * 64bit 8Mbit * 72bit
128MB 16Mbit * 64bit 16Mbit * 72bit
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2-3 BIOS
The motherboard uses a TriGem-AMI BIOS, which is stored in flash memory and can be upgraded using a diskbased program. A new version of the BIOS can be upgraded from a diskette using the Flash Memory Update
utility.
T Flash memory organization
Address (Hex) Size Functional description
FFFF0000 - FFFFFFFF 64KB Boot block
FFFA0000 - FFFEFFFF 256KB Main BIOS block
FF9F0000 - FFF9FFFF 8KB Used by BIOS (Event logging)
FFF9E000 - FFF9EFFF 8KB OEM logo or can flash area
FFF9C000 - FFF9DFFF 16KB DMI configuration data, PnP,
FFF90000 - FFF9BFFF 96KB Fault tolerant storage
FFF80000 - FFF8FFFF 64KB Fault tolerant backup block
T On-board device management
The BIOS can manage the devices on the motherboard over the CMOS setup menu. However the
corresponding jumper as described Jumper setting section later can disable the built-in AGP graphics
controller.
Device Description CMOS setup menu Default value
Internal Cache Celeron PPGA Processor Enable / Disable Enabled
PS/2 Mouse Intel 82371EB (PIIX4e) Enable / Disable Enabled
USB Function Intel 82371EB (PIIX4e) Enable / Disable Enabled
On board Sound CS4280 with CS4297 Codec Enable / Disable Enabled
On board FDC Super I/O (ITE8673) Auto / Enable / Disable Auto
On board serial Super I/O (ITE8673) Auto / 3F8 / 2F8 / 3E8 / 2E8 Auto
On board parallel Super I/O (ITE8673) Auto / Disable / 378 / 278 / 3BC Auto
On board IDE Intel 82371EB (PIIX4e) Disable / Primary / Secondary / Both Both
2-4. Expansion Slot
The motherboard support ISA, PCI and AGP function. ISA and PCI functions are extended to the additional slot
with two ISA and two PCI, and AGP function is designed in the motherboard with AGP graphics controller.
T PCI configuration space map
Bus number Device number Function number Device
00 00 00 Intel 82443LX
00 01 00 Intel 82371EB (PIIX4e)
00 07 00 PCI/ISA bridge (PIIX4e)
00 07 01 IDE bus master (PIIX4e)
00 07 02 USB (PIIX4e)
00 07 03 Power management (PIIX4e)
01 00 00 ATi Rage IIC graphics controller (AGP)
00 13 00 PCI slot1
00 12 00 PCI slot2
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T PCI interrupt & master number routing map
Intel 82371EB (PIIX4e) PCI/ISA bridge has four programmable interrupt request input signals. Any PCI interrupt
source connects to one of these interrupts signals and assigned to the free proper interrupt number by PnP
BIOS.
SB INT
signals
PIRQA INTA INTB INTA
PIRQB INTB INTC
PIRQC INTC INTD
PIRQD INTD INTA INTA
Master REQ0 REQ1
IDSEL AD30 AD29 AD18
Note
Also AGP graphics controller does not use any PCI interrupt in the Florida-C motherboard, because the
interrupt function of AGP graphics controller was designed to disabled status. For more information,
please contact the technical support team.
First
PCI slot
Second
PCI slot
AGP *
graphics
PIIX4e
USB device
2-5. Advanced Configuration and Power Interface (ACPI)
The motherboard and system BIOS support the ACPI that requires an ACPI-aware operating system such as
Windows-NT 5.0 or Windows 98. 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
• Indication LED for normal mode (Green), standby mode (Blinking Green), and suspend mode (Blinking
Green) but this function is dependent on the LED logic.
T Wakeup devices and events
Wakeup device Wakeup events and functionality
Power switch Wakeup from Power-off status and power-off function
LAN Wakeup from power-off status
Modem Wakeup from power-off status
Thermal event Wakeup from power-off status
Sleep button Wakeup from power-off status and go to suspend mode (option)
2-6. 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 ITE8673 /ITE8693 Include LM79
Graphics controller Rage-IIc / Rage pro AGP mode (1x or 2x)
Graphics memory 4MB / 8MB Two / four SDRAM configuration
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III. Jumper & Connector Description
1. Motherboard Jumper Setting
J1
J5,J6,J7,J8
J2,J3,J4
1-1. Selection for Processor CPU Clock
Intel Celeron PPGA Processor is auto set the core to bus frequency ratio.
1-2. Other functionality
DIP Switch Function 2-3
J5 CMOS RAM function Clear CMOS RAM
J6 Password function Clear password
J7 CMOS setup function Disable to edit CMOS contents
J8 FDD write protect Disable to write data
to Floppy disk
1-2(Default)
Enable write/save
Enable password
Enable to edit CMOS
contents
Enable to write data
to Floppy disk
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1-3. AGP graphics device function
This jumper does set the functionality of the built-in AGP graphics controller
J1 AGP device functionality
1-2 Disable AGP graphics controller built in the motherboard
2-3 (default) Enable AGP graphics controller built in the motherboard
1-4. OEM/ODM selector
These jumpers (J2, J3 & J4) will be optional parts for the OEM/ODM logo message selector.
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2. I/O Header Connector Description
2-1. Motherboard Internal Connector
CD Sound CN43,44
Modem Sound
CN46,70
PCI Slot
CN12,13
ISA Slot
(CN17,18)
UBS & Joystick
Header(CN71&CON1)
PC/PCI Header
(CN23)
Lan Wake up
(CN5)
Modem wake up
(CN51)
Aux.-Indicator
Header (CN49)
Video Sound CN45
ATX PSU
connector (CN7)
DIMM Dodule
(CN3,4)
CPU Fan (CN54)
System Fan (CN53)
Sec-IDE
Connector(CN11)
Pri-IDE
Connector(CN10)
FDD connector
(CN9)
Indicator Header
(CN48)
T CPU FAN connector (CN54)
1 2 3
CN54
T System Chassis FAN connector (CN53)
1 2 3
Pin number Signal description
1GND
2FAN power
3 Tachometer (speed)
Pin number Signal description
1GND
2 FAN control
3 Tachometer (Speed)
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T PC/PCI connector (CN23)
2 4 6
1 3 5
T Joystick & USB connector (CON1, CN71)
3 1 8 7 6 5 4 3 2 1
4 2 16 15 14 13 12 11 10 9
T Video Sound (CN45)
1 2 3 4
Pin Signal description Pin Signal description
1/PCGNTA 4/PCREQA
2GND 5N.C
3Key 6SER_IRQ
Pin Signal description Pin Signal description
1VCC 9VCC
2 GD(4) 10 GD(6)
3GD(0) 11GD(2)
4 GND 12 MIDI OUT
5GND 13GD(3)
6 GD(1) 14 GD(7)
7 GD(5) 15 MIDI IN
8VCC 16Key
1 GND 3 Positive DATA
2 Negative DATA 4 VCC
Pin Signal description Pin Signal description
1 Left Sound 3 GND
2 GND 4 Right Sound
T Modem Sound (CN46, CN70)
1 2 3 4 5
CN46
1 2 3 4
CN70
T CD Sound (CN43, CN44)
1 2 3 4
ATAPI CD (CN43)
1 2 3 4
Mitsumi CD (CN44)
Pin Signal description Pin Signal description
1MIC 4GND
2 GND 5 MONO IN
3 MONO OUT
Pin Signal description Pin Signal description
1 MONO IN 3 GND
2GND 4MIC
Pin Signal description Pin Signal description
1 Left Sound 3 GND
2 GND 4 Right Sound
Pin Signal description Pin Signal description
1GND 3GND
2 Left Sound 4 Right Sound
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T LAN Wakeup (CN5)
1 2 3 4
Pin Signal description Pin Signal description
1 +5VSB 3 LANWK
2GND
T Modem Wakeup (CN51)
1 2 3 4
Pin Signal description Pin Signal description
1 Modem Ring 3 +5VSB
2GND
T Indicator Header (CN48)
2
3 5 6 8 9 11 12 13 14 15 16 17 19 20 22
1
PWR HDD DC SW IrDA Speaker
Pin Signal description Pin Signal description
1 VCC 12 GND (Option)
2 PM indicator signal 13 IRTX (Option)
3 GND 14 VCC (Option)
4 Key 15 IRSEL (Option)
5 VCC 16 N.C
6 HDD access signal 17 GND (Option)
7 Key 18 Key (Option)
8 Power-ON switch signal 19 VCC (Option)
9 GND 20 GND (Option)
10 Key 21 N.C
11 IRRX (Option) 22 Speaker signal (Option)
T Aux. Indicator Header (CN49) (Option)
8 7 5 4 12
Sleep Reset Keylock
Pin Signal description Pin Signal description
1 Key lock Signal to Super I/O 2 GND
3 Key 4 Reset signal
5GND 6 Key
7 Sleep Function signal 8 GND
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2-2. Motherboard External I/O Port
L-IN
Parallel port
Video COM1 USB
Mouse
KeyboardSPKMIC
3. Joystick & USB daughter board
Joystick USB
20pin Flat Cable
4. LED & Power S/W board
Power LED
Power Switch
Power LED color : Green (normal working)
Blinking Green (power management mode)
HDD LED color : Green light on (HDD access)
Light off (no access to HDD device)
HDD Access
LED
LED board to board
connector
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