Omega Speaker Systems PCI-DAS1002 manual Calibration Register, BADR1 +, DAC Channel Cal Function

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7.3.4 CALIBRATION REGISTER

See "Calibrating The PCI-DAS1000"document for additional programming details.

BADR1 + 6

This register controls all autocal operations. This is a Write-only register.

WRITE

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SDI

CALEN

CSRC2

CSRC1

CSRC0

-

SEL7376

SEL8800

-

-

-

-

-

-

-

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEL8800 This bit enables the 8-bit trim DACs for the following circuits:

DAC Channel

Cal Function

 

 

0

DAC0 Fine Gain

 

 

1

DAC0 Coarse Gain

 

 

2

DAC0 Offset

 

 

3

DAC1 Offset

 

 

4

DAC1 Fine Gain

 

 

5

DAC1 Coarse Gain

 

 

6

ADC Coarse Offset

 

 

7

ADC Fine Offset

 

 

 

 

SEL7376 This bit latches the 7-bit serial data stream into the AD7376 digital potentiometer (10KOhm). The AD7376 is used for analog front-end gain calibration.

CSRC[2:0] These bits select the different calibration sources available to the ADC front end.

CSRC2

CSRC1

CSRC0

Cal Source

 

 

 

 

0

0

0

AGND

 

 

 

 

0

0

1

7.0V

 

 

 

 

0

1

0

3.5V

 

 

 

 

0

1

1

1.75V

 

 

 

 

1

0

0

0.875V

 

 

 

 

1

0

1

8.6mV

 

 

 

 

1

1

0

VDAC0

 

 

 

 

1

1

1

VDAC1

 

 

 

 

 

 

 

 

CALEN This bit is used to enable Cal Mode.

1 = Selected Cal Source, CSRC[2:0], is fed into Analog Channel 0. 0 = Analog Channel 0 functions as normal input.

SDI Serial Data In. This bit is used to set serial address/data stream for the DAC8800 TrimDac and 7376 digital potentiometer. Used in conjunction with SEL8800 and SEL7376 bits.

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Contents Users Guide Table of Contents BADR3 BADR0 BADR1BADR2 BADR4Introduction Installation IntroductionRUN InstaCal DOS and/or WindowsConnector PIN Diagram Hardware ConnectionsSingle-Ended Inputs Analog ConnectionsSingle-Ended and Differential Inputs Differential Input Differential InputsSystem Grounds and Isolation Which system do you have?Large Common Mode Voltages Systems with Common Mode ground offset VoltagesSmall Common Mode Voltages PCI-DAS1000 and signal source already have isolated grounds Ground Category Input Configuration Our view    Board Board Programming & Software Applications SELF-CALIBRATION of the PCI-DAS1000 Analog InputsAnalog Outputs Interrupt / ADC Fifo Register BADR0BADR1 Region Function OperationsIntcl InteEoaie AdflclADC Channel MUX and Control Register BADR1 + CHL8-CHL1, CHH8-CHH1= ADC Done = ADC Busy EOCPacer Source ARM Trigger CONTROL/STATUS Register BADR1 +TS10 Xtrig Fifo Mode Sample CTRC0SRC IndxgtDAC Channel Cal Function Calibration RegisterBADR1 + Cal SourceDACnR10 Dacen ModeDAC CONTROL/STATUS Register BADR1 + DACnR1 DACnR0 Range LSB SizeADC Fifo Clear Register BADR2 + BADR2ADC Data Register BADR2 + MSB LSBBADR3 + BADR3ADC Pacer Clock Data and Control Registers Device Counter # FunctionDIO Port a Data ADC 8254 Control RegisterDigital I/O Data and Control Registers DIO Port B DataPort a Port C Port B Upper Lower OUT DIO Port C DataDIO Control Register 8254B Counter 2 Data User Counter #6 Index and User Counter 4 Data and Control Registers8254B Counter 1 Data User Counter #5 BADR3 + Ah8254B Control Register BADR3 + BhBADR4 + BADR41 DAC0 Data Register 2 DAC1 Data RegisterElectrical Specifications Analog Output Power consumption EnvironmentalEC Declaration of Conformity