Measurement Computing CIO-DAS-TEMP - Manual (Page 6)

2.2 HARDWARE
2.2.1 Base I/O Address
The CIO-DAS-TEMP may be set to operate at any one of a range of base addresses. T he
CIO-DAS-TEMP uses eight, 8-bit addresses, so the base addresses available are in steps of eig ht. For
example, 300h, 308h, 310h and so on. Table 2-1 of occupied PC addresses below should be
supplemented by information you provide about the addresses used by any other boards or devices
installed in your computer. After all occupied addresses are known, choose an available block of eight
I/O addresses for your CIO-DAS-TEMP. Make sure it is on a 3-bit (8-address) boundary.
Table 2-1. PC I/O 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 82C55 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
9 8 7 6 5 4
SW
A9
A8
A7
A6
A5
A4
A3 HEX
200
100
80
40
20
10
8
3
Address 300H Shown Below
The Base Address is set by a switch on the
CIO-DAS-TEMP labeled ADDRESS. The
CIO-DAS-TEMP uses eight, 8 bit addresses.
The board is set at the factory for address 300h (
768 decimal) as shown here. It is a com mon
address for I/O boards and may already be in use
in your computer. Verify that it, or the address
you choose is available.
Figure 2-1. Base Address Switches
2