Omega Speaker Systems PCI-DAS1001 User Manual download pdf (Page 27)

7.3.5 DAC CONTROL/STATUS REGISTER

BADR1 + 8

This register selects the DAC gain/range and update modes. This is a Write-only register.

WRITE

DACEN-----MODEDAC0R0DAC0R1DAC1R0DAC1R1----

0123456789101112131415

DACEN

This bit enables the Analog Out features of the board.

1 = DAC0/1 enabled.

0 = DAC0/1 disabled.

The power-on state of this bit is 0.

MODE

This bit determines the analog output mode of operation.

1 = Both DAC0 and DAC1 updated with data written to DAC0 data register.

0 = DACn updated with data written to DACn data register.

The power-on state of this bit is 0.

DACnR[1:0]

These bits select the independent gains/ranges for either DAC0 or DAC1.

n=0 for DAC0 and n=1 for DAC1.

1.22mVUnipolar 10V11

610uVUnipolar 5V01

4.88mVBipolar 10V10

2.44mVBipolar 5V00

LSB SizeRangeDACnR0DACnR1

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 38 39

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Omega Speaker Systems PCI-DAS1001 User Manual Page 27