Configuration Tables for DNI Cards
- Commonly Used I/O Base Addresses
- Commonly Used PC Hardware Interrupts
- Commonly Used Upper Memory Locations
TABLE 1. COMMONLY USED I/O BASE ADDRESSES
I/O Possible Conflicting Devices 200 Game Controller/Joystick (200-20F) Expansion Unit (210-217) 220 Cabletron Adapter 230 Bus Mouse 240 260 LPT2: (278-27F) 280 Cabletron Adapter 2A0 2C0 2E0 COM4: (2E8-2Ef) GPIB-Adapter 0 (2E1) COM2: (2F8-2FF) Data Acquisition (2E2-2E3) 300 Cabletron Adapter 320 XT Hard Disk Interface (320-32F) 340 360 LPT1: (378-37F) 380 SLDC / Secondary Bi-Sync Interface (380-38C) Cabletron Adapter 3A0 Primary Bi-Sync Interface (3A0-3A9) Monochrome Display (3B0-3BB) 3C0 EGA Display Control (3C0-3CF) Color/Graphics Display-CGA (3D0-3DF) 3E0 COM3: (3E8-3EF) Floppy Disk Controller (3F0-3F7) COM1: (3F8-3FF)
TABLE 2. COMMONLY USED PC HARDWARE INTERRUPTS
IRQ Usage Machine Type IRQ2 Reserved PC IRQ2 Cascade, slave 8259A PIC AT, PS/2 IRQ3 Serial Comm. (COM 2) PC, AT, PS/2 IRQ4 Serial Comm. (COM 1) PC, AT, PS/2 IRQ5 Fixed Disk PC IRQ5 Parallel Printer (LPT 2) AT IRQ6 Floppy Disk PC, AT, PS/2 IRQ7 Paralled Printer (LPT 1) PC, AT, PS/2 IRQ9 Software diverted to IRQ2 AT, PS/2 IRQ10 Reserved AT, PS/2 IRQ11 Reserved AT, PS/2 IRQ12 Reserved AT IRQ12 Mouse PS/2 IRQ14 Fixed-Disk controller AT, PS/2 IRQ15 Reserved AT, PS/2
TABLE 3. COMMONLY USED UPPER MEMORY LOCATIONS
Boundary Upper Memory Locations
B000 - B0FF Monochrome Graphics
B800 - BFFF CGA Graphics
A000 - BFFF EGA Graphics
A000 - C3FF VGA Graphics
F400 - FFFF XT Bios
E000 - FFFF AT Bios
F000 - FFFF Clone Bios
Boundary Examples of DNI Memory Usage
CC00 - CFFF E1100/E2100/E3100, 16KB
D000-D3FF E1100/E2100/E3100, 16KB
D000 - DFFF E1100-X/E2100-X/E3100-X, 64KB
D000 - D0FF E1100-E/E1100-EX/E2100-E/E2100-EX, 2KB
TABLE 4. COMMONLY USED SOFTWARE INTERRUPTS
HEX DECIMAL
0X60 96
0X61 97
0X62 98
0X63 99
0X64 100
0X65 101
0X66 102
0X67 103
0X68 104
0X69 105
0X6A 106
0X6B 107
0X6C 108
0X6D 109
0X6E 110
0X6F 111
0X70 112
0X71 113
0X72 114
0X73 115
0X74 116
0X75 117
0X76 118
0X77 119
0X78 120
0X79 121
0X7A 122
0X7B 123
0X7C 124
0X7D 125
0X7E 126
0X7F 127