SX1508EVK Semtech, SX1508EVK Datasheet - Page 22
SX1508EVK
Manufacturer Part Number
SX1508EVK
Description
Evaluation Board For SX1508
Manufacturer
Semtech
- Current page: 22 of 41
- Download datasheet (728Kb)
ADVANCED COMMUNICATIONS & SENSING
4.9.7
Below are the steps required to use the LED driver with the typical LED connection described §6.2:
Rev 1 – 30
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Tutorial
Disable input buffer (RegInputDisable)
Disable pull-up (RegPullUp)
Enable open drain (RegOpenDrain)
Set direction to output (RegDir) – by default RegData is set high => LED OFF
Enable oscillator (RegClock)
Configure LED driver clock and mode if relevant (RegMisc)
Enable LED driver operation (RegLEDDriverEnable)
Configure LED driver parameters (RegTOn, RegIOn, RegOff, RegTRise, RegTFall)
Set RegData bit low => LED driver started
th
Oct. 2009
22
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
SX1507/SX1508/SX1509
www.semtech.com
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