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SBAS286A − JUNE 2003 − REVISED MARCH 2004
SUMMARY OF SERIAL INTERFACE WAVEFORMS
DRDY/DOUT
SCLK
23
22
21
0
MSB
LSB
1
24
(a) Data Retrieval
DRDY/DOUT
SCLK
23
22
21
0
1
24
25
(b) Data Retrieval with DRDY/DOUT Forced High Afterwards
Data Ready
After Calibration
DRDY/DOUT
SCLK
23
22
21
0
Begin Calibration
26
1
24
25
(c) Self−Calibration
Data Ready
Standby Mode
23
22
21
0
DRDY/DOUT
SCLK
Start
Conversion
1
24
(d) Standby Mode/Single Conversions
Data Ready
After Calibration
Standby Mode
DRDY/DOUT
SCLK
23
22
21
0
Begin Calibration
1
24
25
(e) Standby Mode/Single Conversions with Self−Calibration
Figure 33. Summary of Serial Interface Waveforms
20