TIC10024-Q1 Datasheet, PDF (28/81 Pages) Texas Instruments – 24-Input Multiple Switch Detection Interface (MSDI) Device With Adjustable Wetting Current for Automotive Systems

TIC10024-Q1
SCPS268 – SEPTEMBER 2017
Device Functional Modes (continued)
Wetting
current
TRIGGER bit set
to logic 1 in
CONFIG register
Wetting current is
activated for
tPOLL_ACT_TIME
ttPOLL_ACT_TIMEt
ttSTARTUPt
IN0
ttPOLL_TIMEt
tCOMPt
IN1
tCOMPt
IN3
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Input sampling restarts
from first enabled input
after tPOLL_TIME
ttSTARTUPt
ttPOLL_ACT_TIMEt
IN23
/INT
tCOMPt
x Default input status is stored
x /INT pin is asserted after the
1^st detection cycle
Time
Figure 18. An Example Of The Polling Sequence In Standard Polling Mode
28
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