Measurement-computing CIO-PDISO8 Manual do Utilizador descarregar pdf (Página 10)

CIO-PDISO8 User's Guide Installing the CIO-PDISO8

Base address

The base address switch sets the starting I/O location where the CPU can access the registers of the CIO-

PDISO8. The factory default is 300h (768 decimal).

Before you install the CIO-PDISO8 in your computer, set the base address by using the dip switch 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 Figure 2 shows the settings for the factory-default base

address of 300 hex.

Figure 2. CIO-PDISO8 base address switches

In the default configuration shown in Figure 2, 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).

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)

3A0-3AF

SDLC

1F0-1FF

Hard disk (AT)

3B0-3BB

MDA

200-20F

Game control

3BC-3BB

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

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 18 19

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