Hardware Configuration and Installation
Chapter 2
AT-GPIB for SCO UNIX
2-8
© N ational Instruments Corp.
Table 2-4. PC AT I/O Address Map (continued)
I/O Address
Range (Hex)
Device
300 to 31F
300 to 30F
320 to 32F
330 to 332
333 to 347
348 to 357
358 to 35F
360 to 363
364 to 367
368 to 36B
36C to 36F
370 to 377
378 to 37F
PC, AT Prototype card
3Com EtherLink (default)
IBM PC/XT Fixed Disk Controller
Adaptec SCSI Card
DCA 3278
PC Network (low address)
Reserved
PC Network (high address)
Reserved
PC, AT Parallel Printer Port 1
380 to 38C
380 to 389
390 to 393
394 to 39F
3A0 to 3A9
3AA to 3AF
3B0 to 3BF
3C0 to 3CF
3D0 to 3DF
3E0 to 3EF
3F0 to 3F7
3F8 to 3FF
SDLC Communications
Bisynchronous (BSC) Communications (alternate)
Cluster Adapter 0
Bisynchronous (BSC) Communications (primary)
Monochrome Display/Parallel Printer Adapter 0
Enhanced Graphics Adapter, VGA
Color/Graphics Monitor Adapter, VGA
Diskette Controller
Serial Port 1 (COM1)
Interrupt Selection
The AT-GPIB board can use one of eleven interrupt lines on the PC AT I/O
channel. The interrupt line is selected by placing a jumper across the
double rows of pins in the interrupt request line selection jumpers, which
are located above the I/O slot edge connector on the AT-GPIB (refer to
Figure 2-1). To select an interrupt line, place the jumper in the appropriate
position. The interrupt lines that the AT-GPIB board can use are IRQ3, 4,
5, 6, 7, 9, 10, 11, 12, 14, and 15. If you install more than one AT-GPIB
board in your computer, each board must be configured to use a unique