TMD4903 Datasheet, PDF (66/86 Pages) ams AG – Color and Proximity Sensor Module with mobeam

Figure 77:
Simplified Flow Diagram
TMD4903 − ApplicationInformation
IDLE
N _START
?
Y
Set RAM Address to
0x00
Burst “Pulse” for x
Carrier Periods
(LED ON)
Burst “Gap” for y
Carrier Periods
(LED ON)
At the END of Y
Pattern
?
N
Go to next RAM
location
Simplified Flow Diagram for Remote Control
(With Repeated Sub-Pattern)
Set RAM Address to
“Repeated” Start
Location
Burst “Pulse” for x
Carrier Periods
(LED ON)
Burst “Gap” for y
Carrier Periods
(LED ON)
At the END of Y
Pattern
?
N
Go to next RAM
location
Decrement Repeat
Counter
N
Done Repeating ^Y
?
Delay
(0ms to 2.55s)
Decrement Loop
Counter
N
Done Looping
?
Y
Interrupt
IDLE
Simplified Flow Diagram: The digital logic in the remote control engine has been tailored to fit the data format
and protocol specifications for IR remote control. “Press and Release” type buttons (E.g. Power) are generated
using the logic in the red box (logic in the blue box is not needed). “Press and Hold” type buttons (E.g. Volume+)
are generated using logic in both the red and blue boxes.
Page 66
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ams Datasheet
[v1-12] 2015-May-14