REV. A

AD73360

–33–

DSP Tx REG

CONTROL WORD 1

1000 1001 0000 0011

DEVICE 1

ADC WORD 1*

0000 0000 0000 0000

DEVICE 2

0000 0000 0000 0000

DSP Rx REG

DON'T CARE

STEP 1

ADC WORD 2*

xxxx xxxx xxxx xxxx

DSP Tx REG

CONTROL WORD 2

1000 0001 0001 0011

DEVICE 1

CONTROL WORD 1*

1000 1001 0001 0011

DEVICE 2

xxxx xxxx xxxx xxxx

DSP Rx REG

DON'T CARE

STEP 2

ADC WORD 2*

xxxx xxxx xxxx xxxx

DSP Tx REG

CONTROL WORD 2

1000 0001 0001 0011

DEVICE 1

ADC WORD 1*

1000 1001 0001 0011

DEVICE 2

1000 1001 0001 0011

DSP Rx REG

DON'T CARE

STEP 3

ADC WORD 2*

xxxx xxxx xxxx xxxx

DSP Tx REG

CONTROL WORD

1000 0010 1110 0001

DEVICE 1

ADC WORD 1*

xxxx xxxx xxxx xxxx

DEVICE 2

xxxx xxxx xxxx xxxx

DSP Rx REG

DON'T CARE

STEP 4

ADC WORD 2*

xxxx xxxx xxxx xxxx

DSP Tx REG

CONTROL WORD

1000 1011 1000 1000

DEVICE 1

ADC WORD 1*

1000 1011 1000 1000

DEVICE 2

xxxx xxxx xxxx xxxx

DSP Rx REG

DON'T CARE

STEP 5

ADC WORD 2*

xxxx xxxx xxxx xxxx

DSP Tx REG

CONTROL WORD

1000 1000 0001 0011

DEVICE 1

ADC WORD 1*

1000 1000 0001 0011

DEVICE 2

xxxx xxxx xxxx xxxx

DSP Rx REG

DON'T CARE

STEP 6

ADC WORD 2*

xxxx xxxx xxxx xxxx

DSP Tx REG

CONTROL WORD 1

1000 0000 0001 0011

DEVICE 1

ADC WORD 1**

1000 1001 0001 0011

DEVICE 2

1000 0000 0001 0011

DSP Rx REG

ADC WORD 2

STEP 7

ADC WORD 2*

0000 0011 0101 1110

DSP Tx REG

CONTROL WORD 1

0111 1111 1111 1111

DEVICE 1

ADC WORD 1

0011 1100 1111 1110

DEVICE 2

0000 0011 0101 1110

DSP Rx REG

ADC WORD 2

STEP 8

ADC WORD 2

0000 0011 0101 1110

*ADC DATA RECEIVED BY THE DSP DURING THE PROGRAMMING PHASE SHOULD NOT BE CONSIDERED VALID RESULTS.

**THIS CONTROL WORD IS NOT INTENDED FOR THE DEVICE THAT HAS RECEIVED IT. ITS ADDRESS FIELD WILL BE DECREMENTED

AND THE DATA WILL BE TRANSMITTED TO THE NEXT DEVICE IN THE CASCADE.

Figure 35. Programming Two AD73360s in Cascade for Mixed Mode