Advantech PCI-1724U Bedienungsanleitung PDF herunterladen (Seite 45)

37 Appendix C

C.2.3 D23~D16

Address bits D23~D20 are decoded to select on group or multiple groups

of registers.

Address bits D19~D16 select the channels. See Table C-6, C-7, C-8.

Table C.4: Register Selection

REG1 REG0 Register Selected

1 1 Normal Mode(Recommended)

1 0 Offset Mode(Used in calibration)

0 1 Gain Mode(Used in calibration)

00N/A

Table C.5: DAC Normal Mode Selection (REG1 = REG0 = 1)

D23~D20 D19~D16 D15 D14 D13~D0

GX CX 11DATA

Table C.6: Control Register

D23~D20 D19~D16 D15 D14 D13~D0

Group Select

Bit (GX)

Channel select

Bit (CX)

REG1 REG0 DAC Data Code

Table C.7: Group GX Register

Group GX D23 D22 D21 D20

GX=10 001

GX=20 010

GX=30 100

GX=41 000

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 61 62

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Advantech PCI-1724U Bedienungsanleitung Seite 45