Measurement-computing CIO-PDMAxx Manuale Utente Scaricare il pdf (Pagina 7)

Figure 3-1. CIO-PDMA16 Base Address Switches (300h shown)

A complete address is constructed by calculating the hexadecimal number which

corresponds to all the address bits the CIO-PDMAx can respond to. The range of

base addresses are:

CIO-PDMA16 200h to 3F8h

CIO-PDMA32 200h to 3F0h

In the default configuration, shown in Figures 3-1 and 3-2, 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).

Figure 3-2. CIO-PDMA32 Base Address Switches (300h shown)

NOTE: The CIO-PDMA32 has one fewer switch than the CIO-PDMA16.

NOTE

DISREGARD NUMBERS PRINTED ON THE SWITCH. REFER

ONLY TO WHITE NUMBERS PRINTED ON THE BOARD.

3.2 INTERRUPT & DMA LEVEL SELECT

The interrupt and DMA levels used by the CIO-PDMA boards are selected in

software. Refer to the documentation for the software package you are using to set

these parameters.

HEX

200

100

1 2 3 4 5 6 7 8 9 10 11 12 ... 31 32

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Measurement-computing CIO-PDMAxx Manuale Utente Pagina 7