TMD4903 Datasheet, PDF (23/86 Pages) ams AG – Color and Proximity Sensor Module with mobeam

TMD4903 − Register Description
Figure 26:
Enable Register
7
6
5
IBEN
Reserved
PIEN
Enable Register (ENABLE 0x80)
Enable has fields that power on the device and enable the
functions. Before enabling any functions, all of the bits
associated with each function must be set. Changing control
register values while operating may result in invalid results.
4
3
2
1
0
AIEN
WEN
PEN
AEN
PON
Field
IBEN
Reserved
PIEN
AIEN
WEN
PEN
AEN
PON
Bits
7
6
5
4
3
2
1
0
Description
IRBeam Enable. When asserted, the LED driver pin (LDR) is controlled by the
IRBeam state machine. Proximity is suppressed. ALS continues in the
background except when IBUSY = 1 (ISTATUS register).
Reserved. Bit must be set to 0.
Proximity Interrupt Enable. When asserted permits proximity interrupts to
be generated, subject to the proximity thresholds and persistence filter.
ALS Interrupt Enable. When asserted permits ALS interrupts to be
generated, subject to the ALS thresholds and persistence filter.
Wait Enable. This bit activates the wait feature. Writing a 1 activates the wait
timer. Writing a 0 disables the wait timer.
Proximity Enable. This bit activates the proximity function. Writing a 1
enables proximity. Writing a 0 disables proximity.
ALS Enable. This bit activates the ALS/Color functionality. Writing a 1
enables ALS/Color. Writing a 0 disables ALS/Color.
Power ON. This bit activates the internal oscillator to permit the timers and
ADC channels to operate. Writing a 1 activates the oscillator. Writing a 0
disables the oscillator and clears IBEN, PEN, and AEN. Only set this bit after all
other registers have been initialized by the host.
ams Datasheet
[v1-12] 2015-May-14
Page 23
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