AD73360
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD 1
1000 1001 0000 0011
ADC WORD 1*
0000 0000 0000 0000
ADC WORD 2*
0000 0000 0000 0000
DON'T CARE
xxxx xxxx xxxx xxxx
STEP 1
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD 2
1000 0001 0001 0011
CONTROL WORD 1*
1000 1001 0001 0011
ADC WORD 2*
xxxx xxxx xxxx xxxx
DON'T CARE
xxxx xxxx xxxx xxxx
STEP 2
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD 2
1000 0001 0001 0011
ADC WORD 1*
1000 1001 0001 0011
ADC WORD 2*
1000 1001 0001 0011
DON'T CARE
xxxx xxxx xxxx xxxx
STEP 3
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD
1000 0010 1110 0001
ADC WORD 1*
xxxx xxxx xxxx xxxx
ADC WORD 2*
xxxx xxxx xxxx xxxx
DON'T CARE
xxxx xxxx xxxx xxxx
STEP 4
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD
1000 1011 1000 1000
ADC WORD 1*
1000 1011 1000 1000
ADC WORD 2*
xxxx xxxx xxxx xxxx
DON'T CARE
xxxx xxxx xxxx xxxx
STEP 5
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
DON'T CARE
CONTROL WORD
ADC WORD 1*
ADC WORD 2*
xxxx xxxx xxxx xxxx
xxxx xxxx xxxx xxxx
1000 1000 0001 0011
1000 1000 0001 0011
STEP 6
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD 1
1000 0000 0001 0011
ADC WORD 1**
1000 1001 0001 0011
ADC WORD 2*
1000 0000 0001 0011
ADC WORD 2
0000 0011 0101 1110
STEP 7
DSP Tx REG
DEVICE 1
DEVICE 2
DSP Rx REG
CONTROL WORD 1
0111 1111 1111 1111
ADC WORD 1
0011 1100 1111 1110
ADC WORD 2
0000 0011 0101 1110
ADC WORD 2
0000 0011 0101 1110
STEP 8
*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
REV. B
–33–
ADI [ ADI ]
