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BC 4045
Quick Reference Guide
1 ground 2 speed 3 ground 4 n/c 5 ground 6 n/c 7 ground 8 index 9 ground 10 motor on 1 11 ground 12 drive sel 2 13 ground 14 motor sel 1 15 ground 16 motor on 2 17 ground 18 direction 19 ground 20 stop step 21 ground 22 write data 23 ground 24 write gate 25 ground 26 track 0 27 ground 28 write protect 29 ground 30 read data 31 ground 32 side select 33 ground 34 disk change
1 reset 2 ground 3 data 7 4 data 8 5 data 6 6 data 9 7 data 5 8 data 10 9 data 4 10 data 11 11 data 3 12 data 12 13 data 2 14 data 13 15 data 1 16 data 14 17 data 0 18 data 15 19 ground 20 n/c 21 n/c 22 ground 23 iow 24 ground 25 ior 26 ground 27 n/c 28 bale 29 n/c 30 ground 31 idint 32 n/c 33 sa1 34 n/c 35 sa0 36 sa2 37 cs5 38 hcs1 39 n/c 40 n/c
1 gnd 2 n/c 3 ledsel- 4 lanled 5 ideled 6 txdiled 7 rxdiled 8 n/c 9 dtriled 10 dcdiled 11 spkr 12 resetsw- 13 ack 14 poll 15 mseclk 16 mse data 17 kclk 18 kdata 19 + 5vf 20 vsync 21 hsync 22 gnd 23 blu 24 grn 25 red 26 gnd
1 Resistor pull-up for Power on LED 2 not used 3 Reset switch (ground to reset computer) 4 IDE Drive LED 5 Ground
1 Speaker data 2 n/c 3 Ground 4 +5V (speaker power)
1 ack (to supervisor) 2 not used 3 poll (from supervisor) 4 not used
This header requires a optional I/O adapter from Cubix. Attempting to connect a device directly to this connector will damage the board.
1 DCD (data carrier detect) 2 RD (receive data) 3 TD (transmit data) 4 DTR (data terminal ready) 5 GND (ground) 6 DSR (data set ready) 7 RTS (request to send) 8 CTS (clear to send) 9 RI (ring indicator) Note: The COM2 header requires a optional I/O adapter from Cubix. Attempting to connect a serial device directly to this connector will damage the board.
This header requires a optional I/O adapter from Cubix. Attempting to connect a PS/2 mouse directly to this connector will damage the board.
This header is for connection to the Optional Cubix Video Mux.
1 Red 2 Ground 3 Green 4 Ground 5 Blue 6 Ground 7 Hsync 8 Ground 9 Vsync 10 mse data 11 Kclk 12 mse clk 13 Kdata 14 +5 (fused)
1 DCD (data carrier detect) 2 RD (receive data) 3 TD (transmit data) 4 DTR (data terminal ready) 5 GND (ground) 6 DSR (data set ready) 7 RTS (request to send) 8 CTS (clear to send) 9 RI (ring indicator)
1 n/c 2 n/c 3 tip 4 ring 5 n/c 6 n/c
1 transmit data (+) 2 transmit data (-) 3 Receive data (+) 4 n/c 5 n/c 6 receive data (-) 7 n/c 8 n/c
Factory configured - should not be changed.
Jumper JP1 Jumper JP2
1-2 1-2 3-4
off on off DX-33, DX2-66, DX4-100
| SW1 | SW2 | |
| Reset when DSR drops on COM1 | on | off |
| Reset when DCD drops on COM1 | off | on |
| Reset when DCD or DSR drops on COM1 | on | on |
| Reset disabled | off | off |
| SW1 | SW2 | SW3 | SW4 | SW5 | SW6 | SW7 | SW8 | |
| Enable Video controller | on | |||||||
| Disable Video controller | off | |||||||
| Supervisory IRQ to 10 | on | off | ||||||
| Supervisory IRQ to 15 | off | on | ||||||
| Disable Supervisory IRQ | off | off | ||||||
| PS/2 Mouse on IRQ 12 | on | |||||||
| Disable PS/2 Mouse | off | |||||||
| Enable Ethernet controller | on | off | off | off | ||||
| Disable Ethernet Controller | off | off | off | off |
All BC system memory is provided in 72-pin by 36 bit standard 70ns SIMM modules. For the proper placing of SIMM modules, see table below.
Simm Socket 1 2 Total
4 4MB
4 4 8MB
8 4 12MB
8 8 16MB
16 16MB
4 16 20MB
16 16 32MB
32 16 48MB
32 32 64MB
64 64MB
64 64 128MB
IRQ Description
0 Timer Click
1 Keyboard
2 Second PIC controller
3 COM2/Ethernet (sw2)
4 COM1
5 Available/Ethernet (sw2)
6 Floppy Disk Controller
7 LPT1
8 Real-Time Clock
9 Redirected IRQ2
10 Available/Supervisory (sw2)
11 Available
12 Available/PS2 Mouse (sw2)
13 Math Coprocessor
14 Fixed Disk Controller
15 Available/Supervisory (sw2)
0000-00FF Various "AT" functions 01F0-01F7 IDE hard drive interface 02F8-02FF COM 2 0300-0317 Ethernet controller 03A0 Cubix Supervisory system interface 03A8-03AF IES serial port 03B4-03B5 VGA 03BC-03BF LPT1 03C0-03CF VGA 03D4-03D5 VGA 03F0-03F7 Floppy/IDE 03F8-03FF COM 1 EISA Ports 0400-04FF Used by EISA chipset 0C00-0CFF Used by EISA chipset
FFFF /------------------\
| 32KB | F800-FFFF Reserved for AMI ROM BIOS.
F800 |------------------|
| 4KB | F700-F7FF Available
F700 |------------------|
| 28KB | F000-F6FF Reserved for AMI ROM BIOS
F000 |------------------|
| |
| 128K | C800-EFFF Available as Expanded
| | (EMS) or Upper Memory (UMB)
| |
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D000 |------------------| D000-EFFF Available
| 32K |
| |
C800 |------------------| C800-CFFF Remote Boot ROM (if enabled)
| 32K | C000-C7FF Reserved for VGA BIOS
| |
C000 |------------------|
| 32K | B800-BFFF VGA/CGA Video Memory
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B800 |------------------|
| 32K | B000-B7FF VGA/Mono Video Memory
| |
B000 |------------------|
| 64K | A000-AFFF VGA Video Memory
| |
A000 |------------------|
| | 0000-9FFF Conventional DOS
| 640K |
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0000 \------------------/
This document, and all Web contents, Copyright © 2000 by Cubix Corp., Carson City, NV, USA.