Measurement Computing CIO-DAS08-PGH - Manual (Page 6)

1.2 HARDWARE INSTALLATION
1.2.1 Base Address
The base address of the CIO-DAS08-PGx is set by switching a bank of DIP
switches on the board (Figure 1-1). This bank of switches is labeled
ADDRESS and numbered 9 to 3.
Ignore the word ON and the numbers printed on the switch
The switch works by adding up the weights of individual switches to make a
base address. A 'weight' is active when the switch is down. Shown here,
switches 9 and 8 are down, all others are up. Weights 200H and 100H are
active, equaling 300H base address. The board is shipped with this default
address selected. If this address is already in use on your computer, select a
different address.
Figure 1-1. Base address Select Switches
Table 1-1 lists the address ranges for the PC computer.
Table 1-1. Base Addresses
SERIAL PORT 3F8-3FF EGA 2B0-2BF
FLOPPY DISK 3F0-3F7 PARALLEL PRINTER 270-27F
SERIAL PORT 3E8-3EF ALT BUS MOUSE 23C-23F
CGA 3D0-3DF BUS MOUSE 238-23B
EGA 3C0-3CF EXPANSION UNIT (XT) 210-21F
PARALLEL PRINTER 3BC-3BF GAME CONTROL 200-20F
MDA 3B0-3BB HARD DISK (AT) 1F0-1FF
SDLC 3A0-3AF 80287 NUMERIC CO-P (AT) 0F0-0FF
SDLC 380-38F 8237 #2 (AT) 0C0-0DF
PARALLEL PRINTER 378-37F NMI MASK (XT) 0A0-0AF
HARD DISK (XT) 320-32F 8259 PIC #2 (AT) 0A0-0A1
PROTOTYPE CARD 310-31F DMA PAGE REGISTERS 080-08F
PROTOTYPE CARD 300-30F CMOS RAM & NMI MASK (AT) 070-071
SERIAL PORT 2F8-2FF 8742 CONTROLLER (AT) 060-064
SERIAL PORT 2E8-2EF 8255 PPI (XT) 060-063
GPIB (AT) 2E0-2E7 8253 TIMER 040-043
EGA 2D0-2DF 8259 PIC #1 020-021
EGA 2C0-2CF 8237 DMA #1 000-00F
FUNCTION HEX RANGE FUNCTION HEX RANGE
1.2.2 Interrupt Level Select
The interrupt jumper need only be set if the software you are using
requires it. If you do set the interrupt jumper, please check your PC's
current configuration for interrupt conflicts, and do not use IR2 in PC/AT
class machines (or higher).
There is a jumper block on the CIO-DAS08-PGx located just above the
PC bus interface (gold pins). The factory default setting is that no
interrupt level is set. The jumper is in the 'X' position (Figure 1-2).
If you need to pace conversions through hardware (either the on - board
pacer or an external clock), move this jumper to one of the other positions
(see table 1-2).
Figure 1-2. Interrupt Select Jumper Block
2
2 3 4 5 6 7 X
INTERRUPT JUMPER BLOCK - Jumper in
X position = No IRQ.