Octek Panther-II 386SX User manual

CONTENT
I - I
Challtcr I 1N
IHODliCTION
Chapter 2
GENERAL FEATURES
2-1
Specification
Processor
Ma t h Coprocessor
Mcmory Systcm
I/O Subsystem
System functions
Chapter 3
INSTALLING
:2 -I
2-3
2-6
2-8
2- 11
2-12
COMPONENTS 3-1
Installing 80387SX Math Coprocessor 3-1
System Mcmory Configuration 3-3
Control or Systcm Spccd 3-8
Systcm Board Jumpcr Setting 3-10
S y s tc III Il () a r d Connectors 3-\ I

Chapter 4
TECHNICAL INFOI~MATION 4-1
Memory Mapping
I/O Address Map
System Timers
System Interrupts
4-1
4-2
4-4
Direct Memory Access (DMA) 4-7
Real Time Clock and CMOS RAM 4-9
CMOS RAM Address Map 4-10
Rea I Tim e C I0 c kin for mat ion 4- I I
System Expansion Bus 4-12
APPENDIX A
SYSTEM BIOS
A-I
Self-Test
A-I
System Setup
A-4
APPENDIX B OPERATION & MAINTENANCE B-1
Keepi ng the System Cool
B-2
Cleaning the "Golden Finger"
B-2
Cleaning the Motherboard
B-3
APPENDIX C SYSTEM BOARD LAYOUT
C-l
4-6

Chapter 1
Introduction
The Panther-II system board is a high
performance system board that represents a
significant technological advance over the
conventional 3S6SX designs. It offers an
increased power and flexibility architecture by
supporting S0386SX processor speeds up to 33 Mhz
(See NOTE Oil pre/ace). The design utilizes
advanced main frame techniques such as two or
fOllr way interlea\'ing along with high speed page
mode capability.
The Panther-II
orfers an
inexpensive
entrance to 3Sb-speciric applications. It combincs
the abilities of the 00386 and the S028b machines.
L ike a n 80 3 8 () III a chi II e, i t 1)1' 0 l' e sse sill St rue t ion s
internally in 32-bit chunks. Like an 80286
III a e h inc, it (l per ate s \V it h a I () - bit d a tab usa n d a
24-bit address bus. This constructions allows the
Panther-II s\'stem to rlln 30b sortware In
essentially a 2X6 hardware environment.
For the 1lll'I1l!HY S\<;(elll, It SlippurtS liP to I!J
MByte of DR.·\i\ls on the S)stc'lll buard. System
and V ide 0 s had 0 \\' i ng rea I LI res are SliP PP I' ted 0 ~1 a II
16K bOll n dar ie s bel wee n () -4 (J K and 1M. I tis a Is ()
opt iIII i zed t u a II0 \\ mix i 11 g 0 r [) R A 1\1 t yp cs log i \' e
end lIser the maximum flexibility in ehuosing the
correct memory capacit~ 1'01' their applications,
This flexibility in configuration allows you to
select an ideal cost/performance combination.
I-I

INTRODUCTION
\: " ';; ~ :
The Pan ther-II is a fu II y P'C/ AT compa ti ble
~ystem dboahr.d i mplemen t~dd h~ ihth a
f h j
gh IY A,
Integrate c IP sets to provl e Ig per ormance, •
reliability and compatibilityl. ,It;·is;:based Ion the
386SX CPU which ca n access the· ,world's,da rgest
existing microcomputer software ,base" including
the growing 32-bit software. '. ";J ,f 1,:, ,,' ..
'l,;:'
J ...
To speed up the switching of CPU between
protected and real mode, a special feature known
as 'OS/2 Optimization' is alsorincorporated. Ifhis I
provides an unique method to. handle; the,.modc
switching which will improve the performancelfor
advanced operating system and expanded memory
manager applications. ; \- ,:'-l1[1!~'1 ':, i
, J' ~ <\ ? r ! 1 f f'.
J!,i'IRegarding to the issueoficompatibility,
Panther-II system is fully hardware)and,software
compatible with associated PC-AT pt;QduclS;, This
mea n s· ;t hat .. vi rt u ally a 11 i! the i; Lh !l.r d war e j ,I and
software'that.is available for thed)G/ A T!cant also
be run on, a ·system you build arou,n<!;;the IPa.nther-;
II system.! It,supports MS-DOS;! X-ep)x, \ Unixnand
all PC/AT application programs. Users can run
applications designed for the PC/AT onlPanther-ll
wi.thout any,· modification. "Multi.:...tasking I and
multhuser capabilities are fullYifunctional;on this
system board. ,)d ?:)jlr.~ 'ii"
~J I :,~ .. :, ,~ .. '~ '/1 1) Ii r: t ~ J !,:, '\ ; f:: / t
';r!1",In addition, ·the' rPanther"IId, provides
stand,a,r.dIISA expansion bus,:con~ectors, so that
add~on""cards ,developed for the, P.Gi'iAT,·,Will be
full y,/ functional. On - boa rd PPWe.r.;"good ,generator
is also implemented to ensure. the reliability of
the system and is capable of working with any
1-2

INTRODUCTION
powcr supplies.
Panther-II is a perfect choice for CAD/CAM
worksta tion, file server and end user applications.
It is designed for the most advanccd computcr-
based applications for today and in the futurc.
, i
1-3

INTRODUCTION
THIS PAGE IS INTENTIONALLY LEFT BLANK
1-4

Chapter 2
General Features
SPECIFICATION
l)rocessor Su IJsystclII :
Intel 80386SX CPU
Optional 80387SX Co-processor
Speed :
Turbo/normal speed
Software/hardware selectable
l\h'lIlory SUIJSystl'lIl :
16MB maximum lIsing 4M SIMMs
2MB using 256Kbx4 DRAM ~hips
Page/Interleave memory:
Page mode memory
2-way
and 4-way interleave mode
System BIOS shadow
Video BIOS shadow
Parity Check option
5I2K Eprom BIOS
2-1

GENERAL FEATURES
I/O Subsystem:
Compatible to standard AT bus
Four 16-bit expansion slots
Two 8-bi t expa nsion slots
System Support Functions:
8-Channel DMA (Direct Memory Access)
16-level interrupt
3 programmable timers
- CMOS RAM for system configuration
Real time clock with battery backup
- OS/2 Optimization (Fast A20 gate and fast
reset)
Other Features:
On board POWERGOOD test circuit
External battery connector
Hardware turbo switch
2-2

la:NEHAL FEATUHES
PROCESSOR
The 80386SX Microprocessor is a 32-bit CPU
with a 16-bit external data bus and a 24-bit
external address bus. The 386SX CPU brings the
high-performance software of the Intel386
Architecture to mid-range systcms. It providcs thc
performance benefits of a 32-bit programming
architecture with the cost saving associated with
16-bit hardware systems.
The 386SX Microprocessor is 100% objcct
code compatible with the 386DX, 286 and 8086
microprocessors. [I provide 386))X bascd systcms
optimized for performance and 386SX CPU bascd
systems optimized ror cost. both sharing the same
operating SYSICIIlS and application SOfl\\'are.
lJ n Ii k c the ::' i\ () - has cds \' sIc III sag a ins I \\' h i l' h iI
com pet c s, the .1 i\ (J S.\. i n her IIS I h e 3X () ,s pro tee Ic d
and virtual 8086 modes and internal 32-bit
process In g.
Instruction pipeling. high bus bandwidth.
and a very high performance ,\LU ensure sllort
avcrage instruction cxecution timcs and high
system throughput. The 386SX CPU is capable or
execution at sllstained rales of 2.5-3.0 mi[lion
instructions per seculld.
The i n te g rat e dIlle m l) I' :- management unit
(MMU) includes an addrcss translalion cache.
a d van c e cI m u It i- t ask i n g h a r d \\' arc. and a r0 u r - [ eve I
hardware-enforccd protection mechanism to
support operating systems. The virtual machine
2-3

GENERAL FEATURES
capability of the 386SX CPU allows simultaneous
execution of applications from multiple operating
systems such as MS-DOS and UNIX.
80386SX is not only an enhanced version of
80286, but designed to overcome the deficiencies
of 80286. It allows you to make use of
application software that a 286 just can't handle.
For example, a very important attribute of any
multi-tasking/multi-user operating system is its
ability to rapidly switch between tasks or
processes. The 386SX Microprocessor directly
supports this operation by providing a task switch
instruction in hardware.
The 386SX Microprocessor has two modes of
operation: Real Address Mode (Real Mode), and
Protected Virtual Address Mode (Protected Mode).
Real Mode has the same base architecture as the
8086, but allows access to the 32-bit register set of
the 386SX Microprocessor.
The complete capabilities of the 386SX
Microprocessor are unlocked when the processor
operates In Protected Virtual Address Mode.
Protected Mode vastly increases the linear address
space to four gigabytes and allows the running of
virtual memory programs of almost unlimited size.
In addition, Protected Mode allows the 386SX
Microprocessor to run all of the existing 386DX
CPU, 80286 and 8086 CPU's software, while
providing a sophisticated memory management and
a hardware-assisted protection mechanism. (J
Protected Mode allows the use of additional
instructions specially optimized for supporting
2-4