STCOM Datasheet, PDF (23/58 Pages) STMicroelectronics – Powerline communication and application system-on-chip

STCOM
Description
Clock management
Two external clock sources are required for the STCOM:
1. 24 MHz frequency
2. 32.768 kHz frequency
Internal clocks are generated by a quadruple frequency synthesizer (QFS) that is fed by the
24 MHz source. Digital blocks can also use the external sources as clock reference.
The clock strategy is depicted in Figure 4.
Figure 4. STCOM clock tree
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DocID028515 Rev 1
23/58
58