SBC-370
SOCKET 370 CELERON, PENTIUM III
Board Processor Guide
Table of Contents
Feature LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SDRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
AGP VGA Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ethernet Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ultra DMA/33 Enhanced PCI EDI Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Multi-I/O Chip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Floppy Disk Drive Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Two High Speed Series Ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Parallel Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Hardware Monitoring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IrDA Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
USB Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ISAPLUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
E2Key™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Watchdog Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Flash Disk - DiskOnChip™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ATX Power Supply Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Watchdog Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2
EKEY™ FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Connecting to an ATX Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
CPU Frequency Setting (JP3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CPU Multiplier Setting (JP8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Watchdog Timer Type Setting (JP5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Watchdog Timeout Period (JP12). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
DiskOnChip™ Memory Address Setting (JP11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Clear CMOS Setup (JP4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PS/2 Mouse Setting (JP7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Floppy Disk Drive Connector (CN2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PCI E-IDE Disk Drive Connector (CN1/CN3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Parallel Port (CN4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Serial Ports (CN12/CN11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
External Switches and Indicators (CN7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
USB Port Connector (CN9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
IrDA Infrared Interface Port (CN6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
VGA Connector (J1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
LAN RJ45 Connector (CN10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3
LED Connector for LAN (CN5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Fan Connector (CN13/CN14/CN15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
System Interrupts (IRQs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
DMA Channel Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1st MB Memory Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
I/O Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Standard CMOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Advanced CMOS Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Advanced Chipset Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Power Management Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PCI/PLUG AND PLAY Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Peripheral Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Hardware Monitor Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Change Supervisor/User Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Auto-Detect Hard Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Auto Configuration with Optimal Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Auto Configuration with Fail Safe Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Save Settings and Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Exit Without Saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4
1 Features
OVERVIEW
The Intel® Socket 370 Celeron® and Pentium III (FC-PGA) with AGP VGA and 10/100
Mbps Ethernet Single Board Computer (SBC-370) is a PICMG bus form factor board. It
is equipped with a high performance Intel® Celeron processor (up to 500 MHz) or
Pentium III (FC-PGA) 500 MHz (or above) processor, and advanced high performance
multi-mode I/O.
This board has a built-in DiskOnChip™ (DOC) Flash Disk for embedded applications.
The DOC Flash Disk is 100% compatible to hard disk. Users can use any DOS com-
mand without any extra software utility. The DOC currently is available from 2 MB to
144 MB.
An advanced high performance super AT I/O chip - Winbond W83977TF is used in
the SBC-370 board. The on-chip UARTs are compatible with NS16C550. The parellel
port and IDE interface are compatible with IBM PC/AT architecture.
SBC-370 uses the advanced Intel 440BX Chipset which is 100% compatible chipset
with PCI 2.1 standard.
FEATURE LIST
CPU
• Intel Celeron® processor up to 500 MHz and Pentium III (FC-PGA) 500 MHz (or above)
processor
• PICMG bus, meets PCI 2.1 standard
• 7DMA channels
• 15 Interrupt levels
• Intel 82440BX 66/100MHz CPU Clock Chipset
SDRAM
• Four 168-pin DIMM sites support up to 1 GB SDRAM
• Each DIMM module is 3.3 V SDRAM with a maximum of 256 MB
6
AGP VGA Controller
• S3 Trio® 3D/2x AGP VGA controller
• 133 MHz AGP bus speed
• Screen resolutions supported up to 1280 x 1024 x 64K colors @ 60 Mz refresh
• Screen resolutions also supported up to:
• 1600 x 1200 x 64K colors at 85 Hz refresh, non-interlaced mode
• 1024 x 768 x 16M colors at 85 Hz refresh, non-interlaced mode
Ethernet Controller
• Realtek RTL8139 IEEE802.u 100 BaseTX standard
• Dual Auto-sensing interface to 10Mbps, 100Mbps Network
• RJ45 connector for 10 BaseTX and 100 BaseTX
• Full Duplex capability
• Full software driver support
Ultra DMA/33 Enhanced PCI EDI Interface
• Up to four PCI Enhance IDE hard drives
• Data transfer up to 33 MB/s
• Compatible with existing ATA-2 IDE specifications
Multi-I/O Chip
• W83977
• All I/O setup by BIOS
• Two 16C550 RS-232C Ports
• One EPP/ECP Parallel Port, Floppy Port
Floppy Disk Drive Interface
• Two 2.88 MB, 1.44MB, 1.2MB, 720K, or 360K floppy disk drives
Two High Speed Series Ports
• NS16C550 compatible UARTs
Parallel Port
• Bidirectional
Features
7
Hardware Monitoring System
• Built-in LM78 hardware monitoring system
• Monitors power supply voltage and fan speed status
• Supports Serial Infrared (SIR) and Amplitude Shift Keyed IR(ASKIR) interface
• Supports two USB ports for future expansion
IrDA Port
USB Port
ISAPLUS
E2Key™
• Enhance the ISA bus drive capability
• 1Kbit EEPROM (nonvolatile memory)
• Accepts read/write data by customer's program
• Stores system ID, password, and critical data on the board
Watchdog Timer
• Can be set by 1, 2, 10, 20, 110, or 220 second periods
• Reset or NMI is generated when CPU does not periodically trigger the timer
• Your program uses hex 043 and 443 to control the watchdog and generate a system reset
Flash Disk - DiskOnChip™
• 100% compatibility with hard disk
• Supports M-Systems
• Built-in True FFS Transparent Flash Block Management and Space Reclamation, which
allows the use of the Flash Disk with DOS command with no need for any extra software
utility
• 2 MB to 144 MB
ATX Power Supply Function
• Connect to the backplanes and /or the ISBC card
Power Consumption
• +5V/6.8A (Celeron 333 MHz, 512 MB SDRAM), +12V/170mA (maximum), -12V/60mA
(maximum)
Features
8
Operating Humidity
• 5 - 95%, non-condensing
WATCHDOG TIMER
The Watchdog Timer is provided to ensure that standalone systems can recover from
catastrophic conditions that cause the CPU to crash. This condition can occur from ex-
ternal EMI or a software bug. When the CPU stops working correctly, hardware on the
board will either perform a hardware reset (cold boot) or a Non-Maskable Interrupt
(NMI) to bring the system back to a known state.
Two I/O ports control the Watchdog Timer:
443 (hex)
043 (hex)
Read
Read
Enable to refresh the Watchdog Timer
Disable the Watchdog Timer
To enable the Watchdog Timer, a read from I/O port 443H must be performed. This
will enable and activate the countdown timer which will eventually timeout and
either reset the CPU or cause a NMI, depending on the setting of JP5. To ensure
that this reset condition does not occur, the Watchdog Timer must periodically be
refreshed by reading the same I/O port 433H. This must be done within the time-
out period that is selected by JP12.
A tolerance of at least 20% must be maintained to avoid unknown routines
within the operating system (DOS), such as disk I/O that can be very time consum-
ing. Therefore, if the timeout period has been set to 10 seconds, the I/O port
443H must be read within 7 seconds.
Note: When exiting a program, it is necessary to disable the Watchdog Timer, otherwise
the system will reset.
E2KEY™ FUNCTION
The SBC-370 provides an E2KEY™ function for system integrators. Based on the E2KEY
utility, you can freely store the ID Code, Password, or Critical Data in the 1Kbit
EEPROM. Because the EEPROM is nonvolatile memory, you don't have to worry about
losing important data.
The E2KEY utility is based on a 1Kbit EEPROM which is configured to 64 words
(from 0 to 63). You can access (read or write) each word at any time.
The E2KEY utility is provided on a CD-ROM with your system. The software utility
will include four files as files:
• README.DOC
• E2KEY.OBJ
• EKEYDEMO.C
• EKEYDEMO.EXE
9
Features
The E2KEY.OBJ provides two library functions for you to integrate your application
with the E2KEY function. The read_e2key and write_e2key libraries are written and
compiled in C language. To implement them, refer to the functions below:
*/unsigned int read_e2key(unsigned int address): This function will return the
E2KEY data to a certain address. The address range is from 0 to 63. Return data is
one word, 16 bits.
*/void write_e2key(unsigned int address, unsigned data): This function will write
the given data to E2Key to a certain address. The address is from 0 to 63. The data
value is from 0 to 0xffff.
To begin using this function, refer to the included EKEYDEMO.C code.
Note: The E2KEY function is based on the parallel port. Therefore, you should enable
SBC-370's parallel port or it will not work.
CONNECTING TO AN ATX POWER SUPPLY
To Connect ATX Power Supply to the Backplanes and/or the ISBC Card
1. Disconnect the AC cord from the power supply to prevent sudden electric surge.
2. Connect the ATX power supply switch to the pin 17 (power button) and pin 19
(+5VSB) of CN7 (multi panel) on the board.
Figure 1. SBC-370
(through Power
Button and +5VSB).
• To turn off the power supply, push the ATX power switch button for about four seconds.
• To turn the system on, push the button once.
Features
10
2 Board Configuration
BOARD LAYOUT
Figure 2. SBC-370
Configuration.
JP3, CPU Frequency
JP8, CPU Multiplier Setting
JP5, Watchdog Timer Type
Setting
JP12, Watchdog Timeout Period
JP11, DiskOnChip Memory
Address Setting
JP4, Clear CMOS Setup
JP7, PS/2 Mouse Setting
CN2, Floppy Disk Drive
CN1, Primary IDE
CN3, Secondary IDE
CN4, Parallel Port
CN12, Serial Port 9-pin
D-sub (COM1)
CN11, Serial Port 2x5 pin
header (COM2)
CN8, External Keyboard
CN17, Mouse
CN18, Keyboard/Mouse
CN7, Multi Panel Switch
CN9, USB
CN6, IrDA
J1, VGA
CN10, LAN RJ45
CN5, LED Connector for LAN
CN13, CPU Fan
CN14, System1 Fan
CN15, System2 Fan
DIMM1/2/3/4, DIMM Sockets
Socket 370, Intel Socket 370
Celeron processor
12
JUMPERS
The default settings are highlighted in the tables that follow.
CPU Frequency Setting (JP3)
Frequency
50 MHz
1-3
2-4
OFF
ON
ON
OFF
3-5
ON
OFF
ON
OFF
4-6
ON
OFF
OFF
ON
OFF
ON
OFF
ON
66 MHz/100 MHz*
75 MHz
83.3 MHz
*Intel Celeron CPU will auto-detect 66 MHz.
* Intel Pentium III (FC-PGA) CPU will auto detect 100MHz.
CPU Multiplier Setting (JP8)
Ration
1-2
3-4
OFF
OFF
ON
5-6
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
7-8
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
3.0 x
3.5 x
4.0 x
4.5 x
5.0 x
5.5 x
6.0 x
6.5 x
7x
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
ON
7.5x
8x
Watchdog Timer Type Setting (JP5)
The Watchdog Timer is enabled by reading port 443H. It should be triggered be-
fore the timeout period ends; otherwise, it will assume the program operation is
abnormal and will issue a reset signal to reboot or activate NMI to CPU. The
Watchdog Timer is disabled by reading port 043H.
Pin Number
Description
NMI
1-2
2-3
RESET
Board Configuration
13
Watchdog Timeout Period (JP12)
Period
1 sec.
1-2
OFF
3-4
OFF
5-6
ON
7-8
OFF
2 sec.
OFF
OFF
OFF
ON
OFF
ON
ON
ON
OFF
ON
OFF
ON
10 sec.
20 sec.
110 sec.
220 sec.
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
DiskOnChip™ Memory Address Setting (JP11)
The DiskOnChip™ (DOC) Flash Disk Chip is produced by M-Systems. No extra soft-
ware utility is needed because the DOC is 100% compatible to hard disk. It is
"plug and play", easy, and reliable. The DOC is available from 2 MB to 144 MB.
Pin Number
Address
1-2
3-4
5-6
CE00-CFFF
D600-D7FF
DE00-DFFF
Clear CMOS Setup (JP4)
If you forget the CMOS password, you can clear or reset it by closing JP4. After
JP4 is closed, turn on the power for about three seconds, then turn it off and
open JP4. Now, the password has been cleared from your CMOS.
Pin Number
Description
2-3
3-4
Normal Operation
Clear CMOS Setup
Note: 1-4 is for connection with external battery (4=GND)
Board Configuration
14
CONNECTORS
This section describes how to connect peripherals, switches, and indicators to the
SBC-370.
Floppy Disk Drive Connector (CN2)
The SBC-370 is equipped with a 34-pin daisy-chain drive connector cable. For the
location of this connector, refer to CN2 in figure 2.
Pin Number
Description
Pin Number
Description
GND
1
GND
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
2
REDUCE WRITE
STEP#
3
GND
GND
4
NC
WRITE DATA#
GND
5
GND
6
NC
WRITE GATE#
GND
7
GND
8
INDEX#
TRACK 0#
GND
9
GND
10
11
12
13
14
15
16
17
18
MOTOR ENABLE A#
GND
WRITE PROTECT#
GND
DRIVE SELECT B#
GND
READ DATA#
GND
DRIVE SELECT A#
GND
SIDE 1 SELECT#
GND
MOTOR ENABLE B#
GND
DISK CHANGE#
DIRECTION#
Board Configuration
16
PCI E-IDE Disk Drive Connector (CN1/CN3)
You can attach four IDE (Integrated Device Electronics) hard disk drives to the
SBC-370 IDE controller.
• CN1 (IDE 1): Primary IDE Connector
• CN3 (IDE 2): Secondary IDE Connector
For the location of these connectors, refer to CN1 and CN3 in figure 2.
Pin Number
Description
RESET#
GND
Pin Number
Description
IDE DRQ
GND
1
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
2
3
DATA 7
DATA 8
DATA 6
DATA 9
DATA 5
DATA 10
DATA 4
DATA 11
DATA 3
DATA 12
DATA 2
DATA 13
DATA 1
DATA 14
DATA 0
DATA 15
GND
IOW#
4
GND
5
IOR#
6
GND
7
IDE CHRDY
GND
8
9
IDE DACK
GND
10
11
12
13
14
15
16
17
18
19
20
INTERRUPT
NC
SA 1
NC
SA 0
SA 2
HDC CS0#
HDC CS1#
HDD ACTIVE#
GND
NC
17
Board Configuration
Parallel Port (CN4)
This port is usually connected to a printer. The SBC-370 includes an onboard par-
allel port accessed through a 26-pin flat-cable connector. For the location of this
connector, refer to CN4 in figure 2.
Pin Number
Description
STROBE#
DATA 0
1
2
3
DATA 1
4
DATA 2
5
DATA 3
6
DATA 4
7
DATA 5
8
DATA 6
9
DATA 7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
ACKNOWLEDGE
BUSY
PAPER EMPTY
PRINTER SELECT
AUTO FORM FEED #
ERROR#
INITIALIZE
PRINTER SELECT LN#
GND
GND
GND
GND
GND
GND
GND
GND
NC
Board Configuration
18
Serial Ports (CN12/CN11)
The SBC-370 offers two high speed NS16C550 compatible UARTs with Read/Re-
ceive 16 byte FIFO serial ports (COM1/COM2).
• CN12: Serial Port 9-pin D-sub Connector (COM1)
Pin Number
Description
DCD
RXD
1
2
3
4
5
6
7
8
9
TXD
DTR
GND
DSR
RTS
CTS
RI
• CN11: Serial Port 2x5 pin header Connector (COM2)
Pin Number
Description
DCD
DSR
1
2
3
RXD
RTS
4
5
TXD
6
CTX
7
DTR
8
RI
9
GND
NC
10
For the location of these connectors, refer to CN12 and CN11 in figure 2.
19
Board Configuration
Keyboard/Mouse Connector (CN8/CN17/CN18)
The SBC-370 provides one external keyboard, one external mouse, and one PS/2
keyboard and mouse connector.
• CN8: 5-pin Header External Keyboard Connector (see note below)
Pin Number
Description
KB CLK
KB DATA
NC
1
2
3
4
5
GND
+5V
• CN17: PS/2 Mouse 5-pin Header Connector
Pin Number
Description
MS DATA
NC
1
2
3
4
5
GND
+5V
MS CLK
• CN18: 6-pin Mini-DIN PS/2 Keyboard and Mouse Connector (see note below)
Pin Number
Description
KB DATA
NC
1
2
3
4
5
6
GND
+5V
KB CLK
NC
For the location of these connectors, refer to figure 2.
Note: A keyboard cannot be connected to CN8 and CN18 simultaneously. A mouse can-
not be connected to CN17 and CN18 simultaneously. One of each device can be con-
nected to CN18 via a Y adapter cable) or CN8 and CN17.
Board Configuration
20
External Switches and Indicators (CN7)
There are several external switches and indicators for monitoring and controlling
the CPU board. All the functions are in the CN7 Multi Panel connector. For the lo-
cation of this connector, refer to figure 2.
Pin Number
Description
SPEAKER
VCC
Pin Number
Description
GND
1
11
12
13
14
15
16
17
18
19
20
2
GND
3
NC
IDE LED
4
NC
NC
5
NC
+5V
6
GND
ATX POWER CONTROL
ATX POWER BUTTON
ATX 5VSB
ATX 5VSB
ATX 5VSB
7
+5V
8
KEYLOCK
RESET SW
GND
9
10
USB Port Connector (CN9)
The SBC-370 has two built-in USB ports for future I/O bus expansion. Pins 1, 3, 5,
and 7 for USB 0. Pins 2, 4, 6, and 8 for USB 1. For the location of this connector,
refer to figure 2.
Pin Number
Description
VCC
1
3
5
7
2
4
6
8
SBD0-
SBD0+
GND
GND
SBD1+
SBD1-
VCC
21
Board Configuration
IrDA Infrared Interface Port (CN6)
The built-in IrDA port supports Serial Infrared (SIR) or Amplitude Shift Keyed IR
(ASKIR) interface. To use the IrDA port, configure the SIR or ASKIR model in the
BIOS's Peripheral Setup's COM2. Then, the normal RS-232 COM2 will be disabled.
For the location of this connector, refer to figure 2.
Pin Number
Description
VCC
1
2
3
4
5
6
FIR-RX
IR-RX
GND
IR-TX
CIR-RX
VGA Connector (J1)
The built-in 15-pin VGA connector can be connected directly to your monochrome
CRT monitor as well as a high resolution color CRT monitor. For the location of
this connector, refer to figure 2.
Pin Number
Description
RED
1
2
GREEN
BLUE
3
4
NC
5
GND
6
GND
7
GND
8
GND
9
VCC
10
11
12
13
14
15
GND
NC
DDC DATA
HSYNC
VSYNC
DDC CLK
Board Configuration
22
LAN RJ45 Connector (CN10)
The SBC-370 is equipped with a built-in 10/100Mbps Ethernet Controller. You can
connect it to your LAN through the RJ45 LAN connector. For the location of this
connector, refer to figure 2.
Pin Number
Description
TX+
1
2
TX-
3.
4.
5.
6.
7.
8.
RX+
75 W termination
75 W termination
RX-
75 W termination
75 W termination
LED Connector for LAN (CN5)
For the location of this connector, refer to figure 2.
Pin Number
Description
VCC
1
2
LAN ACT.
Fan Connector (CN13/CN14/CN15)
The SBC-370 provides one CPU cooling fan connector and two system fan connec-
tors. These connectors can supply 12V/500mA (maximum) to the cooling fan. The
connector has a rotation pin that supplies the fan's rotation signal to the system
so that the system BIOS can read the fan speed. For the location of each connec-
tor, refer to figure 2.
• CN13: CPU Fan Connector
• CN14: System1 Fan Connector
• CN15: System2 Fan Connector
Pin Number
Description
Fan Sensor
+12V
1
2
3
GND
23
Board Configuration
SYSTEM INTERRUPTS (IRQS)
IRQ
Description
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
System Timer
Keyboard
Cascade to IRQ Controller
COM2/COM4
COM1/COM3
Unused
Floppy Drive (FDC)
Printer
Real Time Clock
Unused
Unused
Unused
PS/2 Mouse
FPU
Primary IDE
Secondary IDE
DMA CHANNEL ASSIGNMENTS
Channel
Function
0
1
2
3
4
5
6
7
Available
Available
Floppy disk ( 8-bit transfer )
Available
Cascade for DMA Controller 1
Available
Available
Available
Board Configuration
24
1ST MB MEMORY ADDRESS MAP
The default setting is highlighted.
Memory Address Description
00000-9FFFF
A0000-BFFFF
C0000-CBFFF
D6000-D7FFF
E0000-FFFFF
1000000-
System Memory
VGA Buffer
VGA BIOS
DOC 2000
System BIOS
Extend BIOS
I/O MAP
I/O Address Range
000-01F
Description
DMA Controller #1
Interrupt Controller #1, Master
8254 Timer
020-021
040-05F
060-06F
8042 (Keyboard Controller)
070-07F
Real time Clock, NMI
(non-maskable interrupt) Mask
080-09F
0A0-0BF
0C0-0DF
0F0
DMA Page Register
Interrupt Controller #2
DMA Controller #2
Clear Math Coprocessor Busy
Reset Math Coprocessor
Math Coprocessor
Fixed Disk
0F1
0F8-0FF
1F0-1F8
200-207
278-27F
2E8-2EF
2F8-2FF
300-31F
360-36F
378-37F
380-38F
3A0-3AF
3B0-3BF
Game I/O
Parallel Printer Port 2 (LPT3)
Serial Port 4
Serial Port 2
Prototype Card
Reserved
Parallel Printer Port 1 (LPT2)
SDLC, Bisynchronous 2
Bisynchronous 1
Monochrome Display and
Printer Adapter (LPT1)
3C0-3CF
3D0-3DF
3E8-3EF
3F0-3F7
3F8-3FF
443
Reserved
Color/Graphics Monitor Adapter
Serial Port 3
Diskette Controller
Serial Port 1
Watchdog Timer Enable
Watchdog Timer Disable
043
25
Board Configuration
3 AMI BIOS Setup Menus
The SBC-370 uses the AMI PCI/ISA BIOS for system configuration. The AMI BIOS
setup program is designed to provide maximum flexibility in configuring the sys-
tem by offering various options for end user requirements. This section is pro-
vided to assist you in the proper usage of these features.
GETTING STARTED
When you turn the system on, the BIOS will enter the Power-On-Self-Test routines.
These routines will be executed for system test and initialization and system con-
figuration verification.
Hit DEL if you want to run SETUP
To access AMI PCI/ISA BIOS Setup program, press the Del key. The following screen
will be displayed at this time.
STANDARD CMOS SETUP
The standard CMOS Setup is used for basic hardware system configuration. The main
26
function is for Date/Time setting and Floppy/Hard Disk setting. Refer to the following
screen.
Date/Time: Use the left arrow, right arrow, and Enter keys to move from one field to the
next. The numeric keys, 0-9, are used to change the field values. To set the date
(MM:DD:YYYY), select one of the fields (Month, Day, or Year) and then press either
PgUp or PgDn to set it to the current Month, Day, and Year. Follow the same procedure
for setting the Time (HH/MM/SS). The hour is calculated according to a 24-hour mili-
tary clock, i.e., 00:00:00 through 23:59:59.
Note: It is not necessary to enter the seconds or type zeros in front of numbers.
IDE hard disk drive setup: Use one of the following setup procedures:
• Use the Auto setting for detection during boot-up.
• Use the Auto-Detect Hard Disk option in the main menu; the computer will
automatically detect the HDD specifications.
• Manually enter the specifications from the User option.
ADVANCED CMOS SETUP
The Advanced CMOS Setup is designed for optimizing the performance of the
SBC-370. Under normal operation, you do not have to change any default set-
tings. The default settings are preset for the most reliable operation.
27
AMI BIOS Setup Menus
The following screen will be displayed if you select Advanced CMOS Setup:
You can change the value of each option by using the PgUp and PgDn key. The avail-
able options are shown on the right side of the screen.
Quick Boot > : With the Quick Boot set to Enabled, the BIOS will only check the first 1 MB
of the system memory, providing a quick boot when you turn on your computer. With
the Quick Boot Disabled, the BIOS will test all system memory when it boots up. It will
spend about 40 seconds until it receives a Ready signal from the HDD. It will also wait
for you to press the Del key.
1st, 2nd, 3rd Boot Device >: This is used to define the sequence of boot drives after the rou-
tine check up completes. If the 1st Boot Device fails, the BIOS will attempt to boot from
the 2nd or 3rd device. The Optimal and Fail-Safe default settings are C:, A:, CDROM.
Try Other Boot Devices >: The BIOS will try to boot from any other available device in the
system if the 1st, 2nd, and 3rd device fails to boot.
Floppy Access Control >: This defines the read/write access which is set when booting from
a floppy drive.
Hard Disk Access Control >: This defines the read/write access which is set when booting
from a HDD.
S.M.A.R.T. for Hard Disks >: Allows the BIOS to use the System Management and Reporting
Technologies protocol for reporting server system information on a network.
BootUp Num-Lock >: Turns on/off the Num-Lock option on an enhanced keyboard when
you boot. If you turn it off, the arrow keys on the numeric keypad can be used just as
the other set of arrow keys on the keyboard and vice versa.
AMI BIOS Setup Menus
28
Floppy Drive Swap >: This function enables you to swap the floppy disk drives through
software without moving the hardware.
Floppy Drive Seek >: When this option is Enabled, the BIOS will perform a Seek command
on floppy drive A: before boot-up.
PS/2 Mouse Support >: This is used to determine whether or not a PS/2 mouse is supported.
System Keyboard >: Configures the keyboard. If you set it to Absent, the BIOS will not re-
port keyboard errors.
Primary Display >: Used to define the type of display monitor for the system. The Absent
option is for network file servers.
Password Check >: Used to define whether or not a password is necessary for access to the
BIOS setup.
Boot to OS/2 >: If you run the OS/2 operating system, this option must be set to Yes, per-
mitting the BIOS to run properly if OS/2 or any other OS that does not support Plug
and Play is found in your computer.
CPU Serial Number> : This option is available only if you use a Pentium® III processor.
Cache Bus ECC >: This option is available only if you use a Pentium® III processor.
System BIOS Cacheable >: Used to define whether or not the memory segment FOOOH can
be read from or written to cache memory. Setting it to Enabled will provide faster execu-
tion in your system.
XXXX, 16k Shadow >: ROM Shadow is a technique in which BIOS code is copied from
slower ROM to faster RAM. If you enable it, the BIOS will be executed from the RAM.
Each option allows 16 K segment to be shadowed to the RAM.
29
AMI BIOS Setup Menus
ADVANCED CHIPSET SETUP
These setup functions are working mostly for Chipset (Intel 440BX). These op-
tions are used to change the Chipset's registers. Carefully change any default set-
ting, otherwise the system will run unstably.
Configure SDRAM Timing by SPD >: Enabled will select predetermined optimal values of chipset
parameters. When Disabled, chipset parameters return to setup information stored in CMOS.
SDRAM RAS# to CAS Delay >: Used to specify the relative delay between row and column ad-
dress strobe from SDRAM.
SDRAM RAS# Precharge >: This option specifies the length of time for Row Address Strobe
from SDRAM to precharge.
SDRAM CAS# Latency >: Used to specify the CAS latency timing from SDRAM DRAM.
DRAM Integrity Mode >: Used to choose DRAM Integrity Mode; ECC/EC will enable the Error
Checking and Correction DRAM integrity mode.
DRAM Refresh Rate >: Used to specify the timing for DRAM Refresh.
Memory Hole >: Used to specify the location of a memory hole in the CMOS RAM. This set-
ting reserves 15 to 16 MB memory address space for ISA expansion cards that specifi-
cally require this setting. Memory from 15 MB and up will be unavailable to the system
because expansion cards can only access memory up to 16 MB.
VGA Frame Buffer USWC >: Used to specify whether or not a caching of the video A000-BFFF
RAM is allowed. Enabled will provide better system performance.
AMI BIOS Setup Menus
30
PCI Frame Buffer USWC >: Used to specify whether or not a caching of the PCI VGA frame
buffer is allowed.
USWC Write Post >: Enable or disable the use of Uncacheable, Speculatable, Write-Com-
bined memory.
Graphics Aperture Size >: Define the size of Graphics Aperture.
Search for MDA Resources >: Allows the BIOS to search for MDA resources when Yes is specified.
8bit I/O Recovery Time >: Define the length of time for 8 bit I/O recovery.
16bit I/O Recovery Time >: Define the length of time for 16 bit I/O recovery.
USB Passive Release >: Specify whether or not PIIX4 is allowed to use Passive Release
while transferring control data for USB transactions.
PIIX4 Passive Release >: PIIX4 points to the Intel 82371AB PCI/ISA/IDE Xcelerator chip. Set-
ting this option to Enabled will prioritize PCI at the top, then IDE and ISA.
PIIX4 Delayed Transaction >: Used to enable or disable the embedded 32-bit posted write
buffer, which supports delay transaction.
USB Function >: Enable or disable the USB (Universal Serial Bus) functions.
31
AMI BIOS Setup Menus
POWER MANAGEMENT SETUP
Power Management/APM >: Enables or disables the Advanced Power Management feature.
Green PC Monitor Power State >: Specify the power state of the monitor after the specified pe-
riod of display-idle has ended.
Video Power Down Mode >: Specify the power state of the VESA VGA video subsystem after
the specified period of display-idle has ended.
Hard Disk Power Down Mode >: Specify the power state of the hard disk after the specified pe-
riod of hard drive-idle has ended.
Standby Time Out (Minute) >: Specify the length of the system-idle period while the system is
in full power-on state. After this period of time has ended, the system will go into
Standby state.
Suspend Time Out (Minute) >: Specify the length of the system-idle period while the system is in
Standby state. After this period of time has ended, the system will go into Suspend state.
Throttle Slow Clock Ratio >: Specify the speed of the system clock under power saving state.
The figure is a ratio between power conserving and normal state CPU clock.
Modem Use IO Port >: Assign a port for modem.
Modem Use IRQ >: Assign an IRQ for modem.
Display Activity >: Specify if the BIOS should monitor display activity or not.
Device X >: Used to monitor or ignore specified device IRQs.
AMI BIOS Setup Menus
32
PCI/PLUG AND PLAY SETUP
This setup handles the SBC-370 PCI function. All PCI bus slots on the system use
INTA#, thus all installed PCI slots must be set.
Plug and Play Aware O/S >: When PNP OS is installed, interrupts will be reassigned by the
OS when the setting is Yes. When a non-PNP OS is installed or to prevent reassigning
of interrupt settings, set the setting to No.
Clear NVRAM >: Specify whether or not the BIOS will clear NVRAM on every boot.
PCI Latency Timer (PCI Clocks) >: Define the latency timing (PCI clock) for all PCI devices on
the PCI bus.
PCI VGA Palette Snoop >: This option is useful only for a system with more than one VGA
device connected to it through different bus (one PCI and one ISA). To enable those
various VGA devices to handle signals from the CPU on each set of palette registers of
every video device, it must be set to Enabled.
Note: If another PCI or ISA video card is needed other than the onboard VGA, set PCI
VGA Palette Snoop to Enabled. The system will automatically recognize and use the additional
video card when Enabled.
Allocate IRQ to PCI VGA >: To allocate IRQ to PCI VGA, select Yes.
PCI IDE BusMaster >: Used to include the BusMastering capability into the IDE Controller
on the PCI.
33
AMI BIOS Setup Menus
Offboard PCI IDE Card >: This function is used to specify whether or not an offboard PCI
IDE card is installed in your computer. You must specify the slot number on the board
which will be used for the card.
Offboard PCI IDE Primary (/Secondary) IRQ >: Specify the PCI interrupt that is assigned to the Pri-
mary (/Secondary) IDE channel on the offboard PCI IDE controller.
PCI Slot (1,2,3,4) IRQ Priority >: Specify the IRQ priority to be used by the PCI devices on slots
1 to 4.
DMA Channel (0,1,3,5,6,7) >: Used to indicate whether or not the DMA channel is assigned for
a PnP or ISA card.
IRQ (3,4,5,7,9,10,11,14,15) >: Assign the displayed IRQ to be used by a legacy ISA adapter
card. The settings are ISA/EISA or PCI/PnP.
PERIPHERAL SETUP
This setup works mostly on Multi-I/O Chip (W83977F). The options are used to
change the Chipset's registers. Carefully change any default setting to meet your
application needs. The only concern is Onboard Serial Port 2. If you want to use
the IrDA port, you have to configure the SIR or ASKIR model in the BIOS's Periph-
eral Setup's COM2; the RS-232 COM2 will be disabled.
Onboard FDC >: Used to enable the FDC on your board. If you set it to Auto, the BIOS will
automatically decide if the FDC should be enabled.
Onboard Serial Port A (/B) >: Specify the I/O port address of the serial port 1(/2). If you set it
to Auto, the BIOS will decide the correct I/O port address automatically.
AMI BIOS Setup Menus
34
Serial Port B Mode >: Specify the mode of serial port 2.
IR Duplex Mode >: Specify the mode of IR device that is connected to the IR port.
IrDA Protocol >: Specify the function mode if an IrDA mode is selected.
Onboard Parallel Port >: Specify the I/O port address of the parallel port.
Parallel Port Mode >: Used to specify the mode of parallel port. The options are:
• Normal (normal parallel port mode)
• Bi-Dir (supports bidirectional transfer)
• EPP (supports devices that comply with the Enhanced Parallel Port specification)
• ECP (supports devices that comply with the Extended Capabilities Port)
Parallel Port IRQ >: This option is used to assign certain IRQ to the parallel port. The opti-
mal and fail-safe setting is 7.
Parallel Port DMA Channel >: This function is available only if the parallel port mode is ECP.
The optimal and fail-safe setting is 3.
Onboard IDE >: Define which onboard IDE controller channel(s) should be used. Avail-
able options are: Primary, Secondary, Both, and Disabled.
35
AMI BIOS Setup Menus
HARDWARE MONITOR SETUP
There is a LM78 chip that can monitor onboard system voltage and fan speed.
The voltage monitoring will cover +5V, +12V, -12V, and -5V.
Note: Normal CPU fan RPM is more than 5000 RPM. If your CPU fan RPM is less than
5000 RPM, something is wrong and the CPU will be in overheat condition. Make sure
that the connection at CN12/CN13 is correct.
AMI BIOS Setup Menus
36
CHANGE SUPERVISOR/USER PASSWORD
Set a password that is used to protect your system and Setup Utility. Supervisor
Password has higher priority than User Password. Once you setup the password,
the system will ask you to enter the password every time you enter the BIOS SETUP.
If you enter the BIOS SETUP with the Supervisor Password, you can access every
setup option on the main menu. With a User Password, you can only choose three
setup options (Change User Password, Save Setting and Exit, and Exit Without Saving). To disable
these passwords, enter the BIOS SETUP menu with the Supervisor Password and
then press the Enter key instead of entering a new password when the Enter Password
prompt appears.
AUTO-DETECT HARD DISK
This option detects the parameters of an IDE hard disk drive (HDD sector, cylin-
der, head, etc.) automatically and will put the parameters into the Standard
CMOS Setup screen. Up to 4 IDE drives can be detected and the parameters will
be listed in the box. Press Y if you accept these parameters. Press N to skip to the
next IDE drive.
Note: If your IDE HDD was formatted in a previous system, incorrect parameters may
be detected. In this case, you need to enter the correct parameters manually or low-level
format the disk.
37
AMI BIOS Setup Menus
AUTO CONFIGURATION WITH FAIL SAFE SETTINGS
This option allows you to load the Fail Safe default settings when your computer
cannot boot normally. These settings are not optimal, but are the most stable.
SAVE SETTINGS AND EXIT
Select this option when you finish setting all the parameters and want to save
them into the CMOS. Simply press the Enter key and all the configuration changes
will be saved.
EXIT WITHOUT SAVING
Select this option if you want to exit the Setup without saving the changes that you
made. Simply press the Enter key and you will exit the BIOS SETUP without saving the
changes.
39
AMI BIOS Setup Menus
Index
A
D
B
E
F
G
H
C
connector
I
I/O recovery time
J
jumper
40
S
K
L
M
T
O
U
P
password
V
W
Q
R
41
139908(D)
Xycom Automation, Inc.
Canada Sales: 905-607-3400
734-429-4971 • Fax: 734-429-1010
Northern Europe Sales: +44-1604-790-767
Southern Europe Sales: +39-011-770-53-11
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