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Maxim Integrated MAX32665 User Manual

Maxim Integrated MAX32665
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MAX32665-MAX32668 User Guide
Maxim Integrated Page 428 of 457
22.4 Pins
The interface has two device pins to connect to the off-chip user provided antenna. The ANT device pin is the radio
frequency signal pin and it should be routed through the ANT THRU device pin to the antenna. The ANT device pin is a 50
source impedance driver.
22.5 Configuration
The Radio and Hardware Accelerator requires a 32MHz external crystal specified in the datasheet. The CPU core hosting the
Arm Cordio-B50 stack must run at a core speed greater than 32MHz.
Perform the following steps to enable the Bluetooth radio:
1. Set GCR_BTLE_LDOCR.ldorxen and set to GCR_BTLE_LDOCR.ldotxen 1 to enable the internal Bluetooth LDO.
2. Set GCR_CLK_CTRL.x32M_en to 1.
22.6 Documentation
The Arm Codio-B50 Stack Product Sheet and Profiles can be found at:
https://www.arm.com/products/silicon-ip-wireless/wpan-software
The Maxim MAX32665MAX32668 Low Power Arm Micro Toolchain for both iOS and Windows can be found at:
https://www.maximintegrated.com/en/products/microcontrollers/MAX32650.html/tb_tab2
This Toolchain includes documentation of the Arm Cordio-B50 Stack and profile examples.

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Maxim Integrated MAX32665 Specifications

General IconGeneral
BrandMaxim Integrated
ModelMAX32665
CategoryMotherboard
LanguageEnglish