AK9753 Datasheet, PDF (20/50 Pages) Asahi Kasei Microsystems – IR Sensor IC with I2C I/F

[AK9753]
11.5.2. Read-out Data within a measurement Period
The measurement data register is retained within a measurement period, so the data can be read out
within the measurement period. When data is read out within the measurement period, the previous data
retained is read out.
(N-1) (N)
PD Measurement
PD
Internal Buffer
data(N-1)
data(N)
Measurement data register
data(N-1)
data(N)
DRDY
(N+1)
Measurement
PD
data(N+1)
data(N)
Read-out data
ST1 ^data(N)
ST2
ST1 ^data(N)
ST2
Figure 11.7. Read-out data within a measurement period
11.5.3. Skipping Data
When measurement data is not read out between the end points of (N+1)th and Nth measurement,
DRDY is held until the measurement data is read out. In this case, because the Nth data was skipped,
the DOR bit is “1”.
(N-1) (N)
(N+1)
PD _Measurement
PD
Measurement
PD
Internal Buffer
data(N-1)
data(N)
data(N+1)
Measurement data
data(N-1)
data(N+1)
DRDY
DOR
Read-out data
ST1 ^data(N+1) ST2
Figure 11.8. Skipping Data
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2017/04