Datasheet

   
      
    ± 
SLAS262C − OCTOBER 2000 − REVISED MAY 2003
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conversion operation (continued)
***
Hi-Z
**
**
Data Lost
Hi-Z
** Select Channel
Possible
Signal
t
(sample)
t
(convert)
Select Channel
16 SCLK
Select Channel
16 SCLK
Previous Conversion Result
CS Tied to Low
CSTART
FS
SDI
INT
EOC
SDO
Hi-Z
OR
Conversion Result
Don’t Care
Possible Signal
Figure 13. Mode 00, CSTART Triggers Sampling/Conversion, FS Initiates Select
**
Hi-Z
*** *
**
*
* *
Select CH1
Select CH2
1/4 FIFO FULL 1/4 FIFO FULL
Don’t Care
*** −− WRITE CFR
** −− Select Channel
* −− FIFO Read
**
**
Select Any
Channel
Select Any
Channel
Possible Signal
DATA1 of CH1 DATA2 of CH1
MODE 01, FS Activates Conversion, FIFO Threshold = 1/4 Full
Read FIFO After Threshold Is Hit
CS
FS
SDI
SDO
INT
DATA1 of CH2 DATA2 of CH2
Figure 14. Mode 01, FS Initiates Operations
**
Hi-Z
*** *
**
* * *
1/4 FIFO FULL
1/4 FIFO FULL
Don’t Care
*** −− WRITE CFR
** −− Select Channel
* −− FIFO Read
Select CH1 Select CH2
DATA1 of CH1 DATA2 of CH1 DATA1 of CH2 DATA2 of CH2
MODE 01, FS Initiates Select Period, CSTART
Activates Conversion, FIFO Threshold = 1/4 Full,
Read FIFO After Threshold Is Hit
CS
FS
CSTART
SDI
SDO
INT
Possible Signal
Figure 15. Mode 01, CSTART Triggers Samplings/Conversions