All rights reserved.
No part of this document may be copied or reproduced
in any form or by any means without the prior written
consent of DFI, Inc.
DFI, Inc. makes no warranties with respect to this
documentation and disclaims any implied warranties of
merchantability, quality, or fitness for any particular
purpose. The information in this document is subject to
change without notice. DFI, Inc. reserves the right to
make revisions to this publication and to make changes
to any and/or all parts of its content, at any time,
without obligation to notify any person or entity of such
changes. Further, DFI, Inc. assumes no responsibility
for any errors that may appear in this document.
DFI is a registered trademark and EB3486-TN is a
trademark of Diamond Flower Inc. All other product
names mentioned are trademarks or registered trademarks of their respective companies.
Page 3
vFCC Statement on Class B
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is operated in a residential
installation. This equipment generates, uses, and can
radiate radio frequency energy and if not installed and
used in accordance with the instruction manual may
cause harmful interference to radio communications.
However, there is no guarantee that interference will
not occur in a particular installation. If this equipment
does cause harmful interference to radio or television
reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and
receiver.
•Connect the equipment into an outlet on a circuit
different from that to which the receiver is con-
nected.
•Consult the dealer or an experienced radio TV
techni-
cian for help.
Notice:
(1) The changes or modifications not expressly ap-
proved
by the party responsible could void the user’s au-
thor-
ity to operate the equipment.
(2) Shielded interface cables must be used in order to
Appenidx G: AMI BIOS Hard Disk Table....................................
Appendix H: VESA VL-Bus Slot Pin Assignments..................
7-1
8-1
A-1
B-1
C-1
D-1
E-1
F-1
G-1
H-1
Page 6
Read Me First
The EB3486-TN system board requires the installation of the
ECU (EISA Configuration Utility), found on the provided EISA
Configuration Utility diskette, for proper operation of this
system board.
The ECU configures the EISA devices and maintains system
parameters by storing them in the Extended CMOS Memory, so
the BIOS can initialize the system and expansion boards
inserted in the EISA slots once you power up your system.
The Extended CMOS Memory is equipped with an internal
battery that needs to be constantly charged. In a small number
of cases, the internal battery may have drained and the
information stored in the Extended CMOS Memory lost during
shipment. If this happens, you will get the message "EISACMOS Inoperational" when you power up your system. Simply
run the ECU software, bundled with the system board, to
reconfigure the system. Save the configuration and reboot your
system. Refer to the EISA Configuration Utility section on
page 6-1 for more detailed information.
Page 7
vIntroduction
The EB3486-TN is a revolutionary station board based
on our own Processor Upgradeable Microcomputer
Architecture (PUMA) platform. It's unique design
allows you to use either a 486SX, 486DX or 486DX2
CPU at any speed on the station board. This is accomplished by installing the CPU on a CPU module that
plugs directly into the station board, thus making it easy
and affordable to upgrade.
The EB3486-TN station board is equipped with one
VESA compliant local bus slot for use with local bus
video or network cards. Any future VESA local-bus
products will also work. In addition to the VESA local
bus slot, the station board also has eight 32-bit EISA
(Extended Industry Standard Architecture) expansion
slots and one CPU module slot.
EISA extends the operational capabilities of the ISA
(Industry Standard Architecture) standard while maintaining compatibility with ISA expansion boards. The
EISA Configuration Utility (ECU) must be installed and
run to configure the board and the EISA expansion
boards that will be inserted in the EISA expansion slots.
EB3486-TN
If you have a DBII-486CSX or DBII-486CDX/DX2
CPU module, the system will consist of two levels of
cache memory for fast local access of frequently accessed code and data. The first level, or internal cache,
is built-in to the CPU with 8KB of cache memory. The
second level, or external cache, can support 32KB/64KB
of cache memory using 8Kx8 (25ns) SRAMs or 128KB/
256KB of
cache memory using 32Kx8 (25ns) SRAMs. The
DBII-486SX or DBII-486DX/DX2 CPU modules only
Introduction u 1-1
Page 8
PUMA Station Board
support internal cache.
The EB3486-TN station board uses 256Kx36, 512Kx36,
1Mx36, 2Mx36, 4Mx36, 8Mx36, 16Mx36 and 32Mx36
SIM modules with speeds of 70ns or 80ns. It can hold
128MB of memory onboard configurable in 30 different
sizes.
System support functions include system BIOS and
VGA BIOS Shadow RAM support, memory remapping,
seven channels of Direct Memory Access, 14 levels of
interrupts and five programmable timers.
Features and Specifications
•CPU Modules : DBII and DBVII Series
DBII Series (without external cache)
Each type of 486 CPU Module, DBII-486SX/DX/DX2,
DBII-486CSX/DX/DX2 and DBVII-486SX/DX/DX2,
support all speeds of 486 CPU's. Jumpers on the CPU
module select between SX, DX, or DX2 CPU's.
PGA stands for Pin Grid Array.
PQFP stands for Plastic Quad Flatpack Package.
•Memory configurable up to 128MB
Memory configurable as 1MB, 2MB, 3MB, 4MB,
6MB, 8MB, 9MB, 10MB, 11MB, 12MB, 14MB,
16MB, 20MB, 24MB, 28MB, 32MB, 36MB, 40MB,
44MB, 48MB 56MB, 64MB, 68MB, 72MB, 80MB,
96MB, 100MB, 104MB, 112MB or 128MB.
•External cache organization: direct map, write
through (DBII-486CSX/DX/DX2 CPU modules
only)
•Supports Page mode and write buffer
•Supports system BIOS and VGA BIOS Shadow
RAM function
•Memory remapping supported
•Supports hidden refresh mode
•Supports 14 edge-triggered or level triggered
interrupts
•Eight 32-bit EISA slots, one CPU module slot and
one VESA VL-bus slot (slave mode)
•Six layer PCB for the station board
•Baby AT size (station board)
•One year limited warranty
Introduction u 1-3
Page 10
PUMA Station Board
vInstallation Overview
This chapter summarizes the steps in installing your
EB3486-TN system board into your system unit. It also
includes a description of the area in which you must
work. Before installing the system board, determine the
size of memory you need onboard. Please refer to the
memory chart on page 3-3 and 3-4 for the memory size,
type and quantity of SIM modules needed.
Preparing the Area
Before unpacking the system board, make sure the
location you have selected provides a relatively dust- and
static-free environment. Excessive exposure to dust,
static electricity, direct sunlight, excessive humidity,
extreme cold or water can damage your system board or
greatly reduce its operational abilities.
Be sure that the power source has a properly grounded,
three-pronged socket. It is essential that the power
connection be properly grounded for correct functioning
of your system board. Use a surge protector to shield
the system from damage that may result from a power
surge on the line.
Air circulating around the system unit cools your system.
Please ensure adequate air circulation around the entire
unit and do not block the fan vent on the back of the
unit.
Once you have selected the ideal location, unpack the
EB3486-TN system board carefully.
2-1 u Installation Overview
Page 11
Handling the System Board
It is quite easy to inadvertently damage your system
board even before installing it to your system unit.
Static electrical discharge can damage your system board
even though there are no signs of physical damage. The
damage may show up as a malfunction when you try to
operate the machine, or it may result in premature
failure. Take due care in handling the system board to
make sure that no static build-up is present.
Tips in Handling the System Board
1) To prevent electrostatic build-up, leave the board in
its anti-static bag until you are ready to install it.
2) To ground yourself, place your hand on any bare
metal part of the system chassis.
3) Hold the system board by its edges only. Be careful
not to touch any of the components, contacts or
connections on the station board.
EB3486-TN
4) Avoid touching the metal pins on modules and
connectors. Hold modules and connectors by their
edges.
Installation Overview u 2-2
Page 12
PUMA Station Board
Installing the System Board
Follow the instructions below to install the system
board.
You will need:
•one medium size, flat-bladed screwdriver
•one medium Philips screwdriver
Step 1:Unlock your system unit. Turn off the power
and disconnect all power cords and cables.
Step 2:Remove the system mounting screws from
therear and/or sides of the system
unit.
Step 3:Remove the system unit cover by sliding the
top of the case forward and then lifting it up.
If you are replacing your current motherboard
with the EB3486-TN station board, perform
steps 4 and 5. If this is a new system, skip to
step 6.
Step 4:Remove expansion cards seated in any of the
expansion slots and detach all connectors
fromthe old system board.
Step 5:Loosen the screws holding the original
systemboard and remove the board from
the system.Save the screws.
Step 6:Insert the SIM modules into SIMM banks on
the EB3486-TN. The quantity and location
of the SIM modules is dependent upon the
2-3 u Installation Overview
Page 13
EB3486-TN
memory configuration and the type of
modules you intend to use.
Step 7:Set the corresponding jumpers.
Step 8:Fasten the screw into the CPU Module and
the L-shape bracket. Insert the CPU module
into the slot, and then, under the system
board,fasten the screw into the system
board and theL-shape bracket which is
attached to the CPUModule. Please refer to
the picture below:
Step 9:Install the prepared EB3486-TN system
board into the case and replace the screws.
Step 10:Reattach all cards and connectors and replace
the system unit cover. Reconnect all power
Installation Overview u 2-4
Page 14
PUMA Station Board
cords and cables.
vHardware Installation
Computer components are easily damaged by static
electricity. Static electrical discharge can damage your
system board, even though there are no signs of physical
damage. Be careful to handle the system board by its
edges. Do not touch any part of the circuitry, especially
the gold contacts, with your hands. Do all the preparation work on a static-free surface. Place the system
board on a static-free table with the components facing
up.
Memory Installation
The EB3486-TN system board can support 1MB to
128MB of memory using HSIMMs. HSIMM is an
acronym for High Density Single In-line Memory Module. A HSIMM consists of several RAM chips soldered
onto a small circuit board. A HSIMM connects with the
system board via a 72-pin card-edge connector.
The HSIMM sockets are divided into four banks which
are located on the main board. The SIM modules are
plug into the banks at the upper-left side of the station
board.
You will need 1 to 4 pieces of HSIM modules, depending on the amount of memory you intend to install.
Your system board can be configured to 1MB, 2MB,
3MB, 4MB, 6MB, 8MB, 9MB, 10MB, 11MB, 12MB,
14MB, 16MB, 20MB, 24MB, 28MB, 32MB, 36MB,
40MB, 44MB, 48MB, 56MB, 64MB, 68MB, 72MB,
80MB, 96MB, 100MB, 104MB, 112MB or 128MB of
onboard memory.
3-1 u Hardware Installation
Page 15
EB3486-TN
To install the HSIM modules, first populate Bank 1,
then Bank 2 and so on. Failure to do so will cause the
system board to work improperly.
VESA Slot
CPU MODULE
l
BANK 0
l
BANK 1
l
BANK 2
l
BANK 3
Location of the SIMM Sockets on the Station Board
The following table summarizes the bank locations and
modules needed for corresponding memory sizes. Each
bank consists of 1 HSIMM socket.
MemoryBank 0Bank 1Bank 2Bank 3
Size
1M256K x 36--2M256K x 36256K x 36-2M512K x 36--3M256K x 36256K x 36256K x 364M256K x 36256K x 36256K x 36256K x 36
4M512K x 36512K x 36-4M1M x 36--6M512K x 36512K x 36512K x 368M512K x 36512K x 36512K x 36512K x 36
Hardware Installation u 3-2
Page 16
PUMA Station Board
8M1M x 361M x 36-8M2M x 36---
9M
2M x 36
256K x 36--
MemoryBank 0Bank1Bank 2Bank 3
Size
10M2M x 36256K x 36256K x 3610M2M x 36512K x 36-11M2M x 36256K x 36256K x 36256K x 36
12M2M x 36512K x 36512K x 3612M2M x 361M x 36-12M1M x 361M x 361M x 3614M2M x 36512K x 36512K x 36512K x 36
16M2M x 361M x 361M x 3616M2M x 362M x 36-16M1M x 361M x 361M x 361M x 36
16M4M x 36--20M2M x 362M x 361M x 3620M4M x 361M x 36-24M2M x 362M x 361M x 361M x 36
24M4M x 361M x 361M x 3624M4M x 362M x 36-24M2M x 362M x 362M x 3628M4M x 361M x 361M x 361M x 36
32M2M x 362M x 362M x 362M x 36
32M4M x 364M x 36-32M8M x 36--32M4M x 362M x 362M x 3636M4M x 364M x 361M x 3636M8M x 361M x 36-40M4M x 362M x 362M x 362M x 36
40M4M x 364M x 361M x 361M x 36
40M4M x 364M x 362M x 36-
40M
3-3 u Hardware Installation
Page 17
EB3486-TN
64M8M x 368M x 36--
64M8M x 364M x 364M x 3668M8M x 368M x 361M x 36-
MemoryBank 0Bank1Bank 2Bank 3
Size
64M16M x36--72M8M x 368M x 361M x 361M x 36
72M8M x 368M x 362M x 3680M8M x 364M x 364M x 364M x 36
80M8M x 368M x 362M x 362M x 36
80M16M x 364M x 36-96M8M x 368M x 368M x 3696M16M x 364M x 364M x 36100M8M x 368M x 368M x 361M x 36
104M8M x 368M x 368M x 362M x 36
112M8M x 368M x 368M x 364M x 36
112M16M x 364M x 364M x 364M x 36
128M8M x 368M x 368M x 368M x 36
128M16M x 368M x 368M x 36128M16M x 3616M x 36-128M32M x 36---
Bank Locations and Modules Needed
Hardware Installation u 3-4
Page 18
PUMA Station Board
Installing the Modules
HSIMMs simply snap into a socket on the system board.
Pin 1 of the HSIMM must correspond with Pin 1 of the
socket.
1. Position the HSIM modules above the HSIMM
socketwith the chips of the module facing the
centerof the system board.
2. Seat the module into the bank. Make sure it is
completely seated in its socket before pressing the
module securely into the bank as shown above.
3-5 u Hardware Installation
Page 19
Board Configuration
The EB3486-TN is designed with jumpers and connectors onboard. Make sure that the jumpers are set correctly before installing the system board into your
system unit.
EB3486-TN
J18
J4
J1
J6
J2
J3
J14
J7
J15
CPU Module
J19
J16
J17
J20
VESA Slot
J13
J8
l
l
l
l
Location of Jumpers and Connector Pins
on the EB3486-TN
PL1
J11
PL2
J12
J10
Hardware Installation u 3-6
Page 20
PUMA Station Board
Jumper Settings
Jumper J8
Primary Display Selector
This jumper must match the type of display adapter
installed. If you change your video adapter, change this
jumper accordingly.
1 2 3
1-2 On: Color Display2-3 On: Mono Display
(Default)
Jumper J7, J14 to J17, J19
CPU Module Select
Set the following jumpers according to the type of CPU
module installed on the station board. 486 refers to
486SX/DX/DX2 CPUs.
1 2 3
J7J14J15J16J17J19
4861-2 On1-2 On1-2 On1-2 On1-2 On1-2 On
3-7 u Hardware Installation
Page 21
EB3486-TN
1
2
3
1-2: On
1
2
3
2-3: On
The jumpers below are for factory testing only and
should always be set to their default configuration.
Recon-figuring these jumpers will cause problems with
your EB3486-TN system board.
Jumper J3: 2-3 On
Jumper J13: Off
Jumper J20: On
Jumper J18: 1-2 On
Note:
There are no jumpers on this board to select between
internal and external batteries. The Dallas Real-time
clock we use has an battery built into the chip,
precluding the use of a battery on the system board.
Hardware Installation u 3-8
Page 22
PUMA Station Board
vCPU Modules
The EB3486-TN station board comes with a CPU
module that is inserted in the CPU Module local-bus slot
on the station board. The types of CPU modules available are DBII-486SX/DX/DX2 and DBII-486C (SX/
DX/DX2). These modules support many of the CPU
speeds available in each CPU class. The CPU modules
are also equipped with sockets for coprocessors and are
easy to install, thus making upgradability easy and
affordable.
CPU MODULE local-bus slot
l
l
l
l
Location of the CPU Module Local-Bus Slot on the EB3486-TN
4-1 u CPU Modules
Page 23
DBII-486SX/DX/DX2 CPU Modules
The following CPU's are supported by this module: 25/
33MHz 486SX, 25/33MHz 486DX and 50/66MHz
486DX2. An 80487SX and Weitek 4167 are also supported. If you have a 486SX CPU installed, an overdrive
processor could also be installed at a later date.
EB3486-TN
U1
U5
U6
J3
J5
J2
J4
J1
J6
J7
J8
DBII-486SX/DX/DX2 CPU Module
The DBII-486SX/DX/DX2 CPU Module has three
sockets: U1 (socket for 487SX/OverDrive Processor),
U5 (socket for 486SX/DX/DX2), U6 (socket for
WTL4167).
CPU Modules u 4-2
Page 24
PUMA Station Board
Jumper Settings
Jumpers JP2/JP3/JP4
CPU Select
Jumpers JP2/JP3/JP4 set the CPU modules to 486SX,
486DX or 486DX2, depending on which type of CPU is
installed. The default setting is 486DX.
486SX486DX*486DX2
JP22-3: On1-2: On1-2: On
JP32-3: On1-2: On1-2: On
JP42-3: On1-2: On1-2: On
1
2
3
1
2
3
1-2: On
Jumpers JP7/JP8
CPU Clock Select
4-3 u CPU Modules
2-3: On
Page 25
EB3486-TN
Set these jumpers according to the speed of CPU installed
on the CPU module. The default setting is 33MHz.
25MHz33MHz*
JP72-3: On1-2: On
JP81-2: On1-2: On
1
2
3
1
2
3
1-2: On
The jumpers below are for factory testing only and
should always be set to their default configuration.
Jumpers JP1/JP5/JP6: 2-3 On
* Default setting
DBII-486C Rev. 0 CPU Modules
The DBII-486C Rev. 0 CPU Module supports the same
CPU speeds as the DBII-486SX/DX/DX2 CPU
modules. This CPU Module also supports up to 256K
of external cache.
2-3: On
CPU Modules u 4-4
Page 26
PUMA Station Board
U1
The DBII-486C Rev. 0 CPU Module has two sockets:
U1 (socket for 486DX, 486DX2, 486SX and 487SX/
OverDrive Processor), U9 (socket for Weitek
Coprocessor).
Jumper Settings
U9
J2
J1J3
J9
DBII - 486C Rev. 0 CPU Module
J10
J5
J4 J6
J7
J8
Jumpers JP1 to JP3
CPU Select
Jumpers JP1/JP2/JP3 set the CPU module to 486SX,
487SX, or 486DX/DX2, depending on which type of
CPU is installed. The default setting is 486DX.
486DX/DX2*1-2: On1-2: On2-3: On
486SXOffOff1-2: On
OverDrive1-2: On2-3: On2-3: On
Processor
4-5 u CPU Modules
JP1JP2JP3
Page 27
JP1 JP2 JP3JP2 JP3JP1
On
* Default setting
Cache Configuration
You can configure DBII-486C Rev. 0 to three different
cache sizes: 64K, 128K, and 256K. 256K is the default
size. Use either 8K x 8 (25ns) or 32K x 8 (25ns)
SRAMs to upgrade your cache size. The figure below
shows the location of the SRAM sockets.
U1
EB3486-TN
1
2
3
Off
1
2
3
2-3: On1-2: On
U13
U14
U9
U15
U16
U17
U18
U19
U20
CPU Modules u 4-6
Page 28
PUMA Station Board
Cache SizeU13 - U16U17 - U20
64K8K x 8 (25ns)8K x 8 (25ns)
128K32K x 8 (25ns)none
256K*32K x 8 (25ns)32K x 8 (25ns)
Jumper Settings for Cache Memory
Jumpers JP4 to JP8
Cache Size Setting
JP4JP5JP6JP7JP8
64K2-3: On2-3: On2-3: On1-2: On1-2: On
128K1-2: On1-2: On2-3: On2-3: OnN/A
256K*1-2: On1-2: On1-2: On2-3: On2-3: On
The jumpers below are for factory testing only and should
always be set to their default configuration.
Reconfiguring these jumpers will cause problems with
your EB3486-TN system board.
Jumpers JP9 and JP10: 1-2 On
* Default setting
4-7 u CPU Modules
Page 29
DBII-486C Rev. B CPU Modules
The DBII-486C Rev. B CPU Module supports the same
CPU speeds as the DBII-486C Rev. 0 CPU modules.
ZIF
Socket
U1
EB3486-TN
J2
J3J1
J9J10
J4
J5 J7
J8
J6
DBII - 486C Rev. B CPU Module
The DBII-486C Rev. B CPU Module has a 237 pin ZIF
socket: U1 (socket for 486SX, 486DX, 486DX2 and
487SX/Intel 486
TM
OverDrive Processor/Pentium
TM
OverDrive Processor).
Note:
DBII-486C Rev. B CPU Module does not support
Weitek coprocessor (4167).
CPU Modules u 4-8
Page 30
PUMA Station Board
Jumper Settings
Jumpers JP1 to JP3
CPU Select
(Refer to DBII-486C Rev. 0 CPU module jumper settings on
page 4-5).
Jumper Block JP9 and JP10
CPU Voltage
The DBII-486C Rev. B supports 5 Volt CPUs. Optional
3.3 Volt CPUs are supported only if a regulator chip is
soldered on location U22. Set Jumper block JP9 and
JP10 according to the voltage of the CPU installed.
Warning:
If you are using a 3.3 Volt CPU, this jumper block must
be set to 3.3 Volt. Otherwise, the CPU will be
permanently damaged.
CPU VoltageJP9/JP10
* Default setting
4-9 u CPU Modules
5V CPU*1-2: On
3.3V CPU2-3: On
Page 31
EB3486-TN
JP10
JP9
1-2 On: 5 Volt CPU
(Default)
Cache Configuration
You can configure DBII-486C Rev. B to two different
cache sizes: 128K, and 256K. 256K is the default size.
Use 4 pieces 32K x 8 (25ns) SRAMs to upgrade your
cache. The figure below shows the location of the
SRAM sockets.
ZIF
Socket
U1
JP9 JP10
1
2
3
1
2
3
2-3 On: 3.3 Volt CPU
U13
U14
U15
U16
U17
U18
U19
U20
CPU Modules u 4-10
Page 32
PUMA Station Board
Cache SizeU13 - U16U17 - U20
128K32K x 8 (25ns)none
256K*32K x 8 (25ns)32K x 8 (25ns)
After you power up your system, the BIOS message will
appear on your screen and the memory count begins.
After the memory test, the message below will appear on
the screen if your CMOS setup is correct:
Enter CURRENT Password:
The default password is AMI. You have three chances
to type the correct password. If the password is still
incorrect after the third try, the system will lock up.
You must turn your system off and back on again to
restart it. You can change the password under the
change password option. Refer to the "Change Password" section for more information. A screen similar to
the one below will now appear. If the password option
is disabled, you directly access this screen.
EB3486-TN
Note:
The type of processor indicated in the Main Processor
information line is dependent on the type of CPU module installed.
Initial Setup Program u 5-1
Page 34
PUMA Station Board
AMI BIOS Setup Utilities
If you want to change your CMOS setup, or your
CMOS setup is incorrect, press <Del> when the message, "Hit <Del> if you want to run setup," appears on
the screen. Again, if you enabled the password option,
you will be prompted to the message below:
Enter CURRENT Password:
The default password is AMI. For information on how
to change the password, refer to the "Change Password"
section. After entering the correct password, the screen
below appears. If the password option is disabled, you
will directly access this screen.
Use the arrow keys to highlight the option you want and
hit <Enter>.
5-2 u Initial Setup Program
Page 35
Standard CMOS Setup
Before accessing this option, the warning message below
will appear on the screen:
This message warns you that if inappropriate modifications are made to the CMOS Setup, problems will
occur. Press <Enter> to continue or press <Esc> to
abort.
EB3486-TN
Note:
If your system fails after the setup procedure, power off
your system and turn it on again. Wait for the
message, "Hit <Del> if you want to run setup," to
appear and press <Del>.
If you press <Enter>, a screen similar to the one on the
next page will appear:
Initial Setup Program u 5-3
Page 36
PUMA Station Board
The upper right hand corner shows the base memory size
and extended memory size of your system. You cannot
alter these items, as your computer automatically detects
and displays them.
The left side of the screen lists the modifiable parameters.
You can change the date, time, hard disk drive (C and D)
type, type of floppy drive (A and B), primary display, and
keyboard options.
On the lower right hand side is a calendar that shows
your current date setting.
The box at the lower left provides information each
highlighted parameter.
5-4 u Initial Setup Program
Page 37
EB3486-TN
Navigation and menu selection instructions are located
below the information box. Use the up or down arrow
key to move between options. Once you have highlighted
the option you wish to change, use the <Page Up> or
<Page Down> key to view the available selections for
that option.
If you have added a hard drive, you must select the
appropriate drive type for the drive. The EB3486-TN has
46 pre-set types and one user-definable type.
The table in appendix G gives a complete listing of the
available drive types. Any given drive must be set to one
specific drive-type number. Please refer to you hard drive
documentation to find the appropriate type number.
If none of the pre-set types is appropriate for your hard
drive, choose type 47, which is the user-definable type.
To use this type, highlight either hard disk C or D, depending on your hard drive configuration. Use the <Page
Up> key until type 47 is showing. Fill in all the parameters as specified by the drive manufacturer. To move
between parameters, hit the <Enter> key.
When you are through making changes, press <Esc> to
return to the main menu.
Advanced CMOS Setup
Before accessing this option, the warning message found
on the next page appears on the screen:
Initial Setup Program u 5-5
Page 38
PUMA Station Board
This message warns you that if inappropriate modifications are made to the Advanced CMOS Setup,
problems will occur. Press <Enter> to continue or press
<Esc> to abort.
Note:
If your system fails after the setup procedure, power off
your system and turn it on again. Wait for the
message, "Hit <Del> if you want to run setup", to
appear and press <Del>.
If you press <Enter>, a screen similar to the one on the
next page will appear:
5-6 u Initial Setup Program
Page 39
EB3486-TN
Note:
The VL-Bus Adapter must be set to "Present" if there is
any local bus device installed.
The Memory Write buffer must be set to disable if any
problem occurs on the VL-Bus Adapter. If memory
writebuffer is enabled, some VL-Bus adapters can
gain muchperformance benefit from it.
Use the arrow keys to move the highlight bar to the
options you wish to change or modify. Use the <Page
Up> or <Page Down> keys to make the corresponding
changes.
Set the password checking option to "Always" or
"Setup" if you want to enable this option. Setting it to
"Always" will prompt you for a password everytime you
cold boot your computer or access setup. When you set
the option to "Setup", you will be prompted for a
password only when trying to access setup.
Initial Setup Program u 5-7
Page 40
PUMA Station Board
The Boot Sector Virus Protection option may be set to
"enabled" or "disabled". When enabled, the BIOS issues
a warning when any program or virus sends a Disk Format command or attempts to write to the boot sector of
the hard disk drive.
Note:
Your system must have an American Megatrend Keyboard Controller BIOS, version F or later, for this option to work.
If the changes made are incorrect, or you change your
mind, press <F6> or <F7> to return to the default
settings. Press <Esc> after making the changes to
return to the main menu.
Auto Configuration with BIOS Defaults
If, for some reason, the CMOS becomes corrupted, the
system can be configured with the default values should
provide optimum performance for the system. You
should use these values unless you are having possible
hardware problems.
Highlight this option on the main menu and press <Enter>. The message below will appear.
Load BIOS Setup Default Values from ROM Table (Y/N)? N
Type "Y" and press <Enter> to return to the BIOS
setup default values. After pressing <Enter>, you will
be returned to the main menu.
5-8 u Initial Setup Program
Page 41
Auto Configuration with Power-on Defaults
The Power-on defaults are similar to the BIOS Setup
defaults. These defaults are the most stable values for
the system and should be used if you are having possible
hardware problems.
Highlight this option on the main menu and press <En-
ter>. The message below will appear.
Load Power-on Default Values from ROM Table (Y/N)? N
Type "Y" and press <Enter> to return to the Power-on
default values. After pressing <Enter>, you will be
returned to the main menu.
Change Password
The default password is AMI. If you want to change
the password, make sure that you set the Password
Checking Option to "Always" or "Setup" under CMOS
Advanced Setup. If the Password Checking Option is
not enable, the error message below will appear on the
screen:
EB3486-TN
<Password Option> must be enabled in Advanced CMOS Setup
Press any key to continue
Use the arrow keys to highlight the Change Password
Option and press <Enter>. The message below will
now appear:
Enter Current Password:
Initial Setup Program u 5-9
Page 42
PUMA Station Board
The preset password is AMI. Type AMI, unless the
password has been previously changed, and press
<Enter>. The message below will now appear:
Type in the the new password. You are limited to six
ASCII characters. If you type more than six characters,
you will get the following error message:
Pressing any key on the keyboard to return to the
message below:
Type in a password that is six characters long or
shorter. When done, you will be prompted to the
message below:
Enter NEW Password:
Error, press any key
Enter NEW Password:
Re-enter NEW Password:
You are asked to verify the new password. Type in
exactly the same password. Failure to do so will yield
the error message shown below:
Error, press any key
If you receive this error, you will have to start over.
After typing in the new password, the message below
will appear:
5-10 u Initial Setup Program
Page 43
Press the <Esc> key to return to the main menu. Use
the arrow keys to go to the "Write to CMOS and exit"
option to save the new password and reboot your
system.
Auto Detect Hard Disk
This option detects the hard disk parameters for the hard
disk drives installed in your system. Highlight this
option and press <Enter>. A screen similar to the
following one will appear.
EB3486-TN
New password installed
The screen displays the parameters detected and allows
you to accept or reject the parameters. Type "Y" and
press <Enter> to accept the parameters or press <Esc>
to abort. If you select "Y", the parameters for hard disk
Type 47 will be displayed in Standard CMOS Setup. If
you select "N", the parameters in the Standard CMOS
Setup will remain the same.
Hard Disk Utility
Initial Setup Program u 5-11
Page 44
PUMA Station Board
This option will format, set the interleave mode, and do a
media analysis of your hard disk drives. Highlight this
option and press <Enter>. A screen similar to the
following one will appear.
Note:
Do not use this utility with an IDE hard drive. Use of
this utility can severely damage your hard drive.
Use the arrow keys to select the desired options and
press <Esc> to exit when done.
Write to CMOS and Exit
When all the changes have been made, highlight this
option and press <Enter>. The message below will
appear:
Write to CMOS and Exit (Y/N)? N
Type "Y" and press <Enter>. The modifications you’ve
made will be written into the CMOS memory, and the
system will reboot. You will once again see the initial
5-12 u Initial Setup Program
Page 45
diagnostics on the screen. If you wish to make additional changes to the setup, press <Del> after memory
testing is done.
Do Not Write to CMOS and Exit
When you do not want to save the changes you've made,
highlight this option and press <Enter>. The message
below will appear:
Want to quit without saving(Y/N)? N
Type "Y" and press <Enter>. The system will reboot
and you will once again see the initial diagnostics on the
screen. If you wish to make any changes to the setup,
press <Del> after memory testing is done.
EB3486-TN
Initial Setup Program u 5-13
Page 46
PUMA Station Board
vEISA Configuration Utility
Overview
The EB3486-TN system board requires the use of the
EISA Configuration Utility (ECU). The ECU is used to
configure EISA (Extended Industry Standard Architecture) computer systems.
EISA system boards and EISA adapter cards are much
more complex than the designs of ISA (Industry Standard Architecture) boards and adapter cards, making the
setup of jumpers and switches more complicated. The
ECU was created to automate this configuration process.
The CFG files that come with each EISA expansion
board are copied onto the ECU diskette. The ECU then
stores this configuration data in the system's Extended
CMOS Memory. The CFG file tells the ECU what
choices the user has in configuring the card and what
system resources to reserve for the card. The
EB3486-TN system board uses the "DFI0300.CFG" file.
File Structure
The ECU uses three different files: the CFG, CMS and
INF files.
CFG Files
Each EISA expansion board comes with a CFG file. A
board's CFG file contains detailed information about the
board as well as the functions the board can perform.
For the EB3486-TN system board, choose the
"DFI0300.CFG" file to be configured.
6-1 u EISA Configuration Utility
Page 47
CMS File
The CMS file contains a copy of the configuration
information that is written into the system's Extended
CMOS Memory. Each CMS file should have a
corresponding INF file.
INF File
The INF file contains detailed information about a
configuration such as switch and jumper settings,
software statements, connection statements, and resource
allocation. The INF file is used by the "Display/Print"
command to recall information on a saved configuration.
Each INF file should have a corresponding CMS file.
Initial Configuration
Every EISA system board and expansion board comes
with a CFG file. Prior to running the ECU, make sure
that all CFG files for expansion boards you are using are
in the same directory as the ECU file. If you did not
receive the CFG file for your expansion board, please
contact your dealer or the board manufacturer.
EB3486-TN
If you are installing an EISA hard drive controller/SCSI
host adapter, you will need to run the ECU from a
bootable floppy diskette because the system will not see
the hard drive until the EISA expansion board is
configured. To run the ECU after the hard drive
controller/SCSI host adapter is installed:
1. Create a directory on the disk drive where you want
toinstall the EISA configuration files. Change to
thisdirectory.
EISA Configuration Utility u 6-2
Page 48
PUMA Station Board
2. Copy your EISA Configuration Utility diskette and
theCFG files for all of your EISA boards to
this directory.
3. To run the ECU, make sure that you are in the
directory created in step 1 and type CFG.
Main Menu
The ECU outlines the six steps that involved in configuring a EISA system, steps 1, 2, 3 and 5 are optional. To
select a step, use the arrow keys to move to a step of
your choice and press <Enter>. You may also select a
step by pressing its number. If you are using a mouse,
move the mouse pointer to the selected option and click
the left-mouse button once.
Note:
For a mouse to work in the ECU, you must have a
previously installed mouse driver.
The utility also includes an online Help menu which may
be accessed anytime by pressing the <F1> key.
6-3 u EISA Configuration Utility
Page 49
EISA CONFIGURATION UTILITY, Release 2.01 - (C)1992 American Megatrends Inc.
Step 1: About EISA Configuration
Step 2: Add and Remove Boards
Step 3: Change Configuration Settings
Step 4: Save Configuration
Step 5: View Switch/Jumper Settings
Step 6: Exit
[Select=Enter] [Exit=Esc][Help=F1] [Utilities=F9]
Step 1: About EISA Configuration
This step display information for users who are new to
EISA and EISA Configuration.
EB3486-TN
Step 2: Add and Remove Boards
This step is optional. Use this step to manually add or
delete boards not detected automatically. Most boards
are automatically detected and added by the ECU.
Choose Add and Remove Boards and a screen similar
to the one shown on the next page will appear.
Page 50
PUMA Station Board
This box allows you to add, remove or move boards.
Highlight the board you want to add in the configuration
and press <Enter>. A Slot Selection box similar to one
shown on the next page will appear.
EISA Configuration Utility u 6-6
Page 52
PUMA Station Board
You must select a slot for each adapter board. The slots
are listed in the recommended order of preference.
Select the slot that corresponds to the actual slot where
the adapter board being configured resides and press
<Enter>. Choose OK to continue the configuration
process.
Step 2 - Add and Remove Boards
Adding a board
Performing syntax check on "AMIFFF1.CFG
Select a slot for:
WG-1200VL
Board slot type is ISA16.
Slot Type
1EISAYes
2EISAYes
4EISAYes
5EISAYes
6EISAYes
Slots are listed in recommended order.
[Select=ENTER]
b. Select the slot that corresponds to the actual slot
wherethe adapter board to be moved will reside,
and press<Enter>.
c. If you are finish with this step, choose Done to return
to the main menu.
Step 3:Change Configuration Settings
Slot Selection
Bus Master
Use this step to view or change configuration settings
for any board that is installed. If you skip this step, all
settings will remain set to their default values.
1. Choose Change Configuration Settings and a box
similar to the one shown on the next page will
appear.
2. Select the slot you want to change from the
configuration and press <Enter>.
EB3486-TN
a. If you want to change your system memory,
choose System Board and press <Enter>. Select
System Board Memory and press <Enter>. A
System Board Memory Functions box similar to
the one shown on the next page will appear. If
you do not want to change anything, press <Esc>
to go back to the previous screen.
EISA Configuration Utility u 6-10
Page 56
PUMA Station Board
System Board Memory
Use SIMM Memory Module for the 486 System Board.
b. Select the memory that was installed in your
system board and press <Enter>.
Edit Settings for: DFI EB3486-TN EISA SYSTEM BOARD
This option informs you about the slot number, ID
and the board slot type of a board.
System Details
This option allows you to view the slot type, the
amperage used and EISA CMOS size of the boards
installed in the system.
Physical Board ID Map
The Physical Board ID Map allows you to view the
boards that are physically present in the system.
b. Press <Esc> to return to the main menu.
Step 4:Save Configuration
This option allows you to save the configuration in the
CMS and INF file.
a. After you have finished modifying the configuration,
go to the main menu and choose Save Configuration.
b. A box will appear informing you that the
configurationhas been saved into the INF and CMS
file.
6-15 u EISA Configuration Utility
Page 61
Step 5:View Switch/Jumper Settings
This step allows you to set DIP switches and jumpers on
any board that is switch or jumper configurable.
a. After saving the configuration, choose View Switch/
Jumper Settings if you want to configure the switch
EISA CONFIGURATION UTILITY, Release 2.01 - (C)1992 American Megatrends Inc.
or jumper from your board. Press <Enter> and a box
similar to the one shown below will appear.
After saving the configuration it is important that
you do the following steps before using this system:
1.Note the switch and jumper settings verify that all switches and
jumpers on the boards in your system are set correctly. Some boards
have switches and jumpers that need to be set manually.
2.Note the software statements to see if any of the boards in your
configuration need special drivers to be loaded.
The screen that follow provide this information.
[ Ok=ENTER ]
Step 5: View Switch of Jumper Settings
Step 1: About EISA Configuration
Step 2:Add and Remove Boards
Step 3: Change Configuration Settings
Step 4: Save Configuration
Step 5: View Switch/Jumper Settings
Step 6: Exit
EB3486-TN
[Select=Enter] [Exit=Esc][Help=F1] [Utilities=F9]
b. Press <Enter> to display the information. If your
board has no switches or jumpers, a box will appear
informing you that the board has no switches or
jumpers.
EISA Configuration Utility u 6-16
Page 62
PUMA Station Board
Page 1 of 6: Switches and Jumpers for Slot 0
c.To print the configuration, press <F7> and a Confirm
Print box similar to the one shown on the next page
Slot 0 - DFI EB3486-TN EISA SYSTEM BOARD
will appear.
This board has no
[Done=ESC][Print=F7][PgUp][PgDn] [Help=F1]
d. Type the filename you want to print and press
<Enter>.
Switch/Jumper View
Confirm Print
Print to: (•) Printer
( ) File
Filename: Config. PRN
Ok=ENTERCancel=ESC
e. Press <Esc> to return to the main menu.
Step 6:Exit
This step exits to the operating system. If any
configuration settings were changed, you are given the
option of rebooting the system so that the system
settings will take effect.
a. From the menu option, choose Exit and press
<Enter>.A box will appear asking “Do you
really want toexit?”
Choose:
6-17 u EISA Configuration Utility
Page 63
Yes-to exit to DOS.
Cancel -to return to the main menu.
Reboot -Reboot the system so that changes will
take effect.
Utilities Configuration
This screen controls how a configuration is produced.
Several options are available, each one can be enabled or
disabled by pressing SPACE when an option is
highlighted. To configure the Utilities:
EISA CONFIGURATION UTILITY, Release 2.01 - (C)1992 American Megatrends Inc.
From the main menu, press <F9> and a Utilities box
similar to the one shown below will appear.
Press <Space> to change settings.
[ ] Remote Mode (make a configuration for another system)
[ ] Advanced/Dealer Mode (show functions marked as EXP)
[ ] Force new configuration (ignore previous settings)
[ ] Load CFG files manually from directory list
[ ] Load CFG files listed in CFGLIST.DAT
[ ] Ignore ID mismatches between installed boards and CMOS
[ F5 ] = Restore configuration from backup (CMS file)
[ F6 ] = Display Physical Board ID Map
[ F7 ] = Define ISA Board
[OK=ENTER] [Cancel=ESC]
Step 6: Exit
EB3486-TN
Utilities
[Select=Enter] [Exit=Esc][Help=F1] [Utilities=F9]
Remote Mode
The Remote Mode of the configuration should be turned
off if you are working on this computer. If you want to
produce a configuration for a computer other than this
one, turn on the Remote Mode. If Remote Mode is off,
EISA Configuration Utility u 6-18
Page 64
PUMA Station Board
configuration information will be stored in this
computer's EISA CMOS RAM as well as a CMS file
and INF file.
If Remote Mode is on, the configuration will be stored
in the files only. These files can be copied to another
computer and the configuration can be copied to that
system's EISA CMOS RAM using the “Restore
configuration from backup” option on this screen.
Advanced Dealer
Some EISA boards have CFG files that contain option
that are not ordinarily configured by end users. If this
mode is turned on, any functions that are marked as
EXP (expert) will be visible and can be changed.
Force New Configuration
When turned on, this mode will ignore any existing
configuration settings in CMOS or in the CMS file. All
settings will be set to their defaults.
Load CFG Files Manually from Directory List
When this mode is turned on, the ECU will not
automatically detect and add boards to the configuration.
You will be prompted to select boards one by one.
Load CFG Files Listed in CFGLIST.DAT
If you prefer to specify a list of CFG files to load, you
may create a file called CFGLIST.DAT that contain the
filename of the CFG files to be added. Turning this
option on causes the ECU to use this file.
6-19 u EISA Configuration Utility
Page 65
EB3486-TN
Ignore ID Mismatches Between Installed Boards and
CMOS
Normally the ECU will only configure boards that are
physically present in the system. If a board was present
in a previous configuration but was then physically
removed, the ECU will normally not load the CFG files
for this board. Turning this option on causes the ECU
to load CFG files for all boards that were in the previous
configuration regardless of whether or not they are
physically installed.
EISA Configuration Utility u 6-20
Page 66
PUMA Station Board
Define ISA Board
In addition to EISA adapter boards, you can install ISA
adapter boards by choosing this option. Most ISA
adapter boards do not have a CFG file. Without a CFG
file, the ECU cannot automatically reserve system
resources for ISA adapter boards. These boards must be
configured manually. To configure an ISA board:
1. Choose Configure Define ISA Board and an ISA
Board Definition box similar to the one shown below
will appear.
b. Select the appropriate options in the ISA Memory
Definition box and press <Enter>.
c. Choose OK to save the changes you have just
made.
d. Choose Erase to delete the previously saved
Memory definition.
e. Choose Cancel to return to the ISA Board
Definition box without saving the changes.
EISA Configuration Utility u 6-26
Page 72
PUMA Station Board
10. After you have finished configuring the board,
choose Save to save the configuration in an ISA
CFG file.
11. Choose Load to edit a previously saved ISA CFG
file. A Load ISA Board Definition box similar to
the one shown on page 6-21 will appear. Highlight
the ISA board to be edited and press <Enter>.
12. Choose New to start a new ISA board configuration.
13. Choose Delete to remove an ISA board definition
from the ECU's internal ISA board database. An
ISA Board Database box similar to the one shown
below will appear.
Select the ISA board to delete or press <Esc> to exit.
()Mass Storage Device
a
DMA
[ ] WG-1200VL
-
-
-
-
[Ok=ENTER][Cancel=ESC]
ISA Board Definition
ISA Board Database
IRQPortsMemory
-
-
-
-
-
-
-
14. Quit returns you to the main menu without saving
any changes.
6-27 u EISA Configuration Utility
()16 bit()8 bit()8 or 16 bit
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Page 73
vDEMM 386 Software Driver
DEMM 386 is a software driver that is used on the
EB3486-TN system board to translate extended memory
into expanded memory.
Copy the DEMM386.SYS driver from the provided
diskette into your root directory. After copying the
driver, add a line to your CONFIG.SYS file using the
following syntax:
This line should be placed before any other drivers that
use extended memory. The parameters enclosed in
brackets "[" and "]" are optional and do not need to be
included. Do not include the "[" and "]" when typing
any parameters.
EB3486-TN
xxxxis the EMS page frame base address in
hexadecimal. In expanded memory management,
a contiguous 64KB page frame segment must be
reserved. The following are valid page frame
addresses; C000, C400, C800, CC00, D000,
D400, D800, DC00 and E000. The default page
frame address is E000.
yyis the maximum handle numbers (in hexadecimal)
to be reserved. The default value is 40H (64 in
decimal).
zzis the maximum number of contexts (in
hexadecimal) to be reserved. The default value is
DEMM 386 Software Driver u 7-1
Page 74
PUMA Station Board
40H (64 in decimal).
ttttspecifies an area of the extended memory (in
kilobytes) to be reserved that will not be used by
the EMS driver. Without the /T option, all of
the extended memory will be used as expanded
memory.
aaaa-bbbbspecifies that a certain range of memory
should be excluded from EMS mapping. aaaa is
the starting segment address and bbbb is the
ending segment address of the range. For
example, if a network adapter in your system
occupies memory from D0000 to D3FFF, specify
/X=D000-D3FF to exclude this range from EMS
mapping.
cccc-ddddspecifies that a certain range of memory
should be included in EMS mapping. cccc is the
starting segment address and dddd is the ending
segment address of the range. This option is
very useful if you want the EMS driver to utilize
unused video area. For example, if a Hercules
graphics adapter is installed in your system, the
memory range between A0000 to AFFFF is not
used at all. By specifying /I=A000-AFFF, the
EMS driver will utilize the area for EMS mapping.
/Lspecifies that the backfill area (384KB from
4000:0 to 9000:FFFF) will be used exclusively as
conventional memory. The EMS driver will not
be able to use this area as page frames or EMS
pages.
7-2 u DEMM 386 Software Driver
Page 75
vTroubleshooting Checklist
If you experience difficulty with the EB3486-TN system
board, please refer to the checklist below. If you still
cannot isolate the problem, please contact your dealer.
1) Check the jumper settings to ensure that the jumpers
are properly set. If in doubt, refer to the “Board
Configuration” section.
2) Verify that all SIM modules are seated securely into
the bank sockets.
3) Make sure that the SIM modules are in the correct
location.
4) Check that all populated memory banks are
completely filled. If not, fill them completely.
5) If your board fails to function, place the board on a
flat surface and seat all socketed components (gently
press each component into the socket).
EB3486-TN
Troubleshooting Checklist u 8-1
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PUMA Station Board
vAppendix A: Types of Modules
The EB3486-TN system board allows you to populate
memory with 256Kx36, 512Kx36, 1Mx36, 2Mx36,
4Mx36 and 8Mx36 SIM modules. The following modules have been tested with this board.
During the POST (Power On Self Test) routines, which
are performed each time the system is powered on,
errors may occur. Errors can be fatal or non-fatal.
Fatal Errors
Fatal errors are those which will not allow a system to
continue the boot-up procedure. If a fatal error occurs,
you should contact your dealer for repair.
The EB3486-TN uses a TACT84544 EISA Peripheral
Control Unit that supports the following:
Provides Enhanced DMA Functions
• ISA/EISA DMA compatible cycles
• 32-bit addressability
• Provides timing control for 8-, 16-, and 32-bit DMA
data transfers
• Provides timing control for compatible "A",
"B", and "C" (Burst) cycle types
Incorporates the Functionality of Two 82C59A Interrupt
Controllers
• 14 independently programmable channels for levelor-edge triggered interrupts
Five Programmable 16-bit Counter/Timers
Provides Logic for Generation/Control of Non-Maskable
Interrupts
• Parity errors for system and expansion board
memory
• 8us and 32us bus timeout
• Immediate NMI interrupt via software control
• Fail-safe timer
E-1 u Appendix E
Page 87
DMA Channels
DMA Controller 1DMA Controller 2
Ch0-Reserved for UserCh4-Cascade for CTRL 1
Ch1-SDLCCh5-Reserved for User
Ch2-Diskette (IBM Personal Computer)Ch6-Reserved for User
Ch3-Reserved for UserCh7-Reserved for User
Note:
DMA controller 1 supports 8-bit Data Transfer
DMA controller 2 supports 16-bit Data Transfer
A NMI is an interrupt requiring immediate attention and
has priority over the normal interrupt lines (IRQX).
NMI interrupts are caused by the following conditions:
IRQ3-Serial Port 2IRQ10-Reserved
IRQ4-Serial Port 1IRQ11-Reserved
IRQ5-Parallel Port 2IRQ12-Reserved
IRQ6-Diskette ControllerIRQ14-Fixed Disk Controller
IRQ7-Parallel Port 1IRQ15-Reserved
NMI Source
Parity #
Fail Safe Timer
IOCHK #
Bus Timeout
Write to Port 0462h
to INT 0AH (IRQ2)
Note:
Any or all interrupts including NMI may be masked.
The 14 levels of system interrupts from high to low are
ordered as: IRQ0>IRQ1>IRQ8>IRQ9>IRQ10>IRQ11
>IRQ12>IRQ14>IRQ15>IRQ3>IRQ4>IRQ5
>IRQ6>IRQ7.
E-3 u Appendix E
Page 89
System Timers
EB3486-TN
Interval Timer 1Interval Timer 2
Channel 0System Timer (IRQ0)Fail-Safe Timer
Channel 1Refresh Request
Channel 2Tone Generation forCPU Speed Control
Real-Time Clock
Generator (15us Rate
Generator Period Signal)
Speaker
AddressFunction
00Seconds
01Second Alarm
02Minutes
03Minute Alarm
04Hours
05Hour Alarm
06Day of Week
07Date of Month
08Month
09Year
0ARegister A
0BRegister B
0CRegister C
0DRegister D
(NMI Interrupt)
Appendix E u E-4
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PUMA Station Board
Burst Cycles
The 486 microprocessor accepts burst cycles for any bus
request that requires more than one data cycle. During
burst cycles, a new data item is strobed into the 486
microprocessor for every clock rather than every other
clock as in non-burst cycles.
TACT84543 EISA Bus Control Unit
The EB3486-TN system board uses the 82358 EISA
Bus Controller that supports the following:
• Provides EISA/ISA bus cycle compatibility
• Interfaces host (CPU) bus to EISA/ISA bus
• Translates host bus cycles to EISA/ISA bus cycles
• Generates ISA signals for EISA masters
• Generates EISA signals for ISA masters
• Supports 8-, 16-, or 32-bit DMA cycles
• Supports host and EISA/ISA refresh cycles
• Generates control signals for address and data buffers
• Supports byte assembly/disassembly for 8-, 16-, or 32bit data transfers
• Supports I/O recovery mechanism
E-5 u Appendix E
Page 91
Extended CMOS Memory DS1387
The EB3486-TN system board has Extended CMOS
Memory installed onboard. Configuration information is
stored in the Extended CMOS Memory so the BIOS can
initialize the system board and the expansion boards
inserted in the EISA slots every time you power up your
system.
The Extended CMOS Memory uses a 4Kx8 SRAM
which is equipped with an internal battery. If the battery
runs down, the information stored in CMOS memory
may be lost. If this happens you must either reconfigure
the system or copy the backup configuration file into the
Extended CMOS Memory.
CMOS
EB3486-TN
l
l
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Location of the Extended CMOS Memory on the
EB3486-TN
Appendix E u E-6
Page 92
PUMA Station Board
vAppendix F: Connector Pin Assignments
Jumper J4/J10*
Keyboard Connector
PinFunction
1Keyboard Clock
2Keyboard Data
3No Connection
4Ground
5+5V DC
Jumper J1
HardwareReset Connector
PinFunction
1Reset Signal
2Ground
*Use only one.
F-1 u Appendix F
Page 93
Jumper J2
Speaker Connector
PinFunction
1Speaker Data Out
2No Connection
3Ground
4+5 V DC
Jumper J6
Power On and Keylock Connector
PinFunction
1LED Power
2Key
3Ground
4Keyboard Inhibitor
5Ground
The EB3486-TN station board is equipped with one
VESA VL-Bus slot to accommodate the CPU module.
The table below lists the pin-out specifications of the
VESA slot I/O pinouts.