TMG39921 datasheet(79/96 Pages) OSRAM

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ams Datasheet

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[v1-06] 2018-Feb-27

TMG3992 − Register Description

Configuration Register AA (CONFIG_AA),

Gesture Mode

This register contains settings that govern which gesture

photodiode pair: North-South and/or East-West will be enabled

(have valid data in FIFO) while the gesture state machine is

collecting directional data. Normal mode enables all four

gesture photodiodes and places data into FIFO as expected.

Disabling a photodiode pair, essentially allows the enabled pair

to collect data twice as fast. Data stored in the FIFO for a

disabled pair is not valid. This feature is useful to improve

reliability and accuracy of gesture detection when only

North-South or East-West gestures are expected.

Figure 82:

Configuration Register AA

765

432

Reserved

GDIMS

Field

Bits

Description

Reserved

7:2

Reserved. Bits must be set to 0.

GDIMS

1:0

Gesture Dimension Select. Selects which gesture photodiode pairs are

enabled to gather results during gesture.

Field Value

PERSISTENCE

Both Pairs active. NS and WE FIFO data is valid.

Only the NS pair is active. Ignore WE data in FIFO.

Only the WE pair is active. Ignore NS data in FIFO.

Both Pairs active. NS and WE FIFO data is valid.

TMG39921 Datasheet(PDF) 79 Page - OSRAM GmbH