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RTX51: Configuration for Silabs Devices

Information in this article applies to:

  • RTX51 Version 7.00


I am using the Silicon Labs C8051F020 and the Keil CA51 V7.00 and RTX51 V.700. What are the Device Type Number and Timer that I need to set in the RTX Configuration?


RTX51 Version 7.00 supports the following Processor Types for the Silicon Labs devices. Note that you may use Timer 0 or Timer 1 but Timer 2 is not supported as a system timer.

Cygnal Device       CPU Number
C8051F005/6/7       39 [*2]
C8051F015/16/17     39 [*2]
C8051F020/21/22/23  43 [*2]
C8051F206           40 [*2]
C8051F226           40 [*2]
C8051F236           40 [*2]

[*2] Timer 2 not supported as System Timer

Refer to the RTX51 List of Supported Devices for a complete list of the chips that are supported.


Last Reviewed: Saturday, November 21, 2020

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