AN397 PORTING CONSIDERATIONS FOR AUTOMOTIVE MCUS
The Silicon Labs MCU portfolio includes three product families that are intended for use in automotive applications. The three families are the C8051F50x/F51x, C8051F52x/F53x, and the C8051F58x/F59x. This application note highlights the differences among these product families and covers important points to consider when switching a design from one automotive MCU family to another. The C8051F50x/F51x and the C8051F58x/F59x devices were designed to be code-compatible and pin-compatible and thus require very minor changes when porting firmware and hardware between MCUs in these families.
Common Features:
Some digital and analog peripherals are common to all automotive MCU product families. If SFR paging is accounted for, firmware written for these peripherals will work directly on any of the MCUs. See "3.2.1. SFRPaging" for more details on SFR paging.
The list of peripherals available in each of the three families is:
• LIN
• SPI
• Timers 0/1/2
• ADC and Temperature Sensor
• Comparator 0
Note that while these peripherals are common to all families, they might not be available in each part number of a product family. Refer to the Ordering Information sections of the applicable datasheets to determine the specific part number that includes the peripherals necessary for the system.
As an example, the C8051F502-GM is pin- and software-compatible with the C8051F587-GM. However, the C8051F587-GM does not include a LIN peripheral. If this peripheral is necessary for the system, the appropriate upgrade choice is the C8051F582-GM.
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C8051F50x 、 C8051F51x 、 C8051F52x 、 C8051F53x 、 C8051F58x 、 C8051F59x 、 C8051F502-GM 、 C8051F587-GM 、 C8051F582-GM 、 C8051F500-IQ 、 C8051F501-IQ 、 C8051F504-IQ 、 C8051F505-IQ 、 C8051F500-IM 、 C8051F501-IM 、 C8051F504-IM 、 C8051F505-IM 、 C8051F508-IM 、 C8051F509-IM 、 C8051F510-IM 、 C8051F511-IM 、 C8051F502-IQ 、 C8051F503-IQ 、 C8051F506-IQ 、 C8051F507-IQ 、 C8051F502-IM 、 C8051F503-IM 、 C8051F506-IM 、 C8051F507-IM 、 C8051F580-IQ 、 C8051F581-IQ 、 C8051F584-IQ 、 C8051F585-IQ 、 C8051F580-IM 、 C8051F581-IM 、 C8051F584-IM 、 C8051F585-IM 、 C8051F588-IM 、 C8051F589-IM 、 C8051F582-IQ 、 C8051F583-IQ 、 C8051F586-IQ 、 C8051F587-IQ 、 C8051F582-IM 、 C8051F583-IM 、 C8051F586-IM 、 C8051F587-IM |
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2017/07/27 |
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Rev. 0.1 |
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AN397 |
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1.6 MB |
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