Computer Accessories User Manual

EQUITY 386SX
I/O Port Addresses
ADDRESS
FUNCTION
WO-OlF
02043F
04048F
08M8F
070-07F
08OXQF
OAO-OBF
OCO-ODF
OEO-OFF
lMlF8
278-27F
2F8-2FF
378-37F
3BO-3BF
3FO-3F7
3F8-3FF
Dh4A Controller I
Interrupt Controller 1
Timer/Counter
Keyboard controller and Port B
CMOS RAM and Non-Maskable
Interrupt Mask
Dh#I Page Fbglster
Interrupt Controller 2
DMA Controller 2
Numeric Coprocessor
Hard Disk Controller
Parallel Port 1
8erial Port 1
Parallel Port 0
Parallel Port 2 (on some video
boards)
floppy Disk Controller
Serial Port 0
Jumper Settings
Possible Eqwy 386xX SlMM con~alirnls
DMA Channels
CHANNEL FUNCTlON
0
Spare
1
Spare
2 floppy disk transfers
3
Spare (Hard disk drive)
4 Cascade of data from channel O-3
5
spare
8
spare
7
We
EQ386SX-3