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CYW43903 Datasheet(PDF) 21 Page - Cypress Semiconductor

Part # CYW43903
Description  WICED??IEEE 802.11 a/b/g/n SoC with anEmbedded Applications Processor
PDF  65 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CYW43903 Datasheet(HTML) 21 Page - Cypress Semiconductor

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Document Number: 002-14826 Rev. *G
Page 21 of 65
PRELIMINARY
CYW43903
6.4 System Boot Sequence
The following general sequence occurs after a CYW43903 is powered on:
1. Either REG_ON or HIB_REG_ON_IN is asserted.
Note: For HIB_REG_ON_IN to function as intended, HIB_REG_ON_OUT must be connected to REG_ON.
2. The core LDO (CLDO) and LDO3P3 outputs stabilize.
3. The OTP memory bits are used to initialize various functions, such as PMU trimming, package selection, memory size selection,
etc.
4. The APP and WLAN cores are powered up.
5. The XTAL is powered up.
6. The APP and WLAN CPU bootup sequences start.



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