Measurement-computing CIO-DAS08 Instrukcja Użytkownika Pobierz pdf (Strona 10)

CIO-DAS08 User's Guide Installing the CIO-DAS08

Base address

Before you install the CIO-DAS08 in your computer, set the base address by using the dip switches labeled

ADDRESS located on the board. The easiest way to set the base address switch is to let InstaCal show you the

correct settings. However, if are already familiar with setting ISA base addresses, you may use the base address

switch description below to guide your base address selection.

Unless there is already another board in your system using address 300 hex (768 decimal), leave the switches as

they are set at the factory. The example shown in shows the settings for the factory-default base

address of 300 hex.

Figure 2

Figure 2. Base address switches (300h shown)

Figure 2

HEX

200

100

543

ADDRESS

In the default configuration shown in , addresses 9 and 8 are DOWN, and all others are UP.

Address 9 = 200 hex (512 decimal) and address 8 = 100 hex (256 decimal); when added together they equal

300 hex (768 decimal).

A complete address is constructed by calculating the hexadecimal number which corresponds to all the address

bits the CIO-DAS08 can respond to. The range of base addresses is 000h to 3F0h. Certain address are used by

the PC, others are free and may be used by the CIO-DAS08 and other expansion boards. Refer to the following

table.

Disregard the numbers printed on the switch

When setting the base address, refer to the numbers printed in white on the printed circuit board.

PC I/O Addresses

Hex Range Function Hex Range Function

000-00F 8237 DMA #1 2C0-2CF EGA

020-021 8259 PIC #1 2D0-2DF EGA

040-043 8253 TIMER 2E0-2E7 GPIB (AT)

060-063 8255 PPI (XT) 2E8-2EF SERIAL PORT

060-064 8742 CONTROLLER (AT) 2F8-2FF SERIAL PORT

070-071 CMOS RAM & NMI MASK (AT) 300-30F PROTOTYPE CARD

080-08F DMA PAGE REGISTERS 310-31F PROTOTYPE CARD

0A0-0A1 8259 PIC #2 (AT) 320-32F HARD DISK (XT)

0A0-0AF NMI MASK (XT) 378-37F PARALLEL PRINTER

0C0-0DF 8237 #2 (AT) 380-38F SDLC

0F0-0FF 80287 NUMERIC CO-P (AT) 3B0-3BB SDLC

1F0-1FF HARD DISK (AT) 3BC-3BF MDA

200-20F GAME CONTROL 3C0-3CF PARALLEL PRINTER

210-21F EXPANSION UNIT (XT) 3C0-3CF EGA

238-23B BUS MOUSE 3D0-3DF CGA

23C-23F ALT BUS MOUSE 3E8-3EF SERIAL PORT

270-27F PARALLEL PRINTER 3F0-3F7 FLOPPY DISK

2B0-2BF EGA 3F8-3FF SERIAL PORT

The CIO-DAS08 base switch can be set for an address in the span of 000-3F0h, so it should not be hard to find

a free address area. If you are not using IBM prototyping cards, or some other board which occupies these

addresses, then 300-31F HEX are free to use. Addresses not specifically listed — such as 390-39Fh — are free.

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 20 21

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