Download DX1 User Manual - Blue Chip Technology

Page 62
ISA & VESA Bus Details
Interrupt Assignments
Interrupt
NMI
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Device
Occupied on
DX1 (default)
Y
Y
Y
N
Y
Y
N
Y
Y
Y
N
N
N
Y
N
Y
N
Parity Check (generates IOCHCK on error)
Timer
Keyboard (Output Buffer Full)
Cascaded from Interrupt 9
Serial Port 2 (also 4, 6 & 8 if sharing interrupts)
Serial Port 1 (also 3, 5 & 7 if sharing interrupts)
Parallel Port 2
Floppy Diskette Controller
Parallel Port 1
Real Time Clock
VGA controller
Unassigned
Unassigned
PS/2 Mouse
Unassigned
Hard (Fixed) Disk Controller
Unassigned
DMA Assignments
DMA
Channel
0
1
2
3
4
5
6
7
01270173.doc
8/16 bit
Peripherals
8 bit
8 bit
8 bit
8 bit
16 bit
16 bit
16 bit
16 bit
Device
Used for Refresh Circuitry
Available
Diskette Drive
Available
Cascaded to 1st DMA controller
Available
Available
Available
Occupied on
DX1 (default)
Y
N
Y
N
Y
N
N
N
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