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CAT2 Peripheral Driver Library
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CAT2 Peripheral Driver Library
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The high-precision internal oscillator (HPOSC) operates with no external components and outputs a clock signal at roughly 2 MHz. More...
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The high-precision internal oscillator (HPOSC) operates with no external components and outputs a clock signal at roughly 2 MHz.
This oscillator is intended to trim other blocks to maintain 1% accurate timing throughout the chip. Clock Calibration can be achieved using on-chip counters to compare clock rates and make appropriate adjustments via firmware. Refer to the Clock Trim API.
The HPOSC operates from the low-voltage (1.8 V) VCCD supply, and uses an available 1.2 uA current for fast startup. After startup, or when disabled, this current is not used and is cut off. The block is low power, typically using less than 10 uA.
The HPOSC can be used as High-Frequency Clock (HFCLK). The high-frequency clocks including the HPOSC operate only in Active and Sleep modes.