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TMS320F280049C: 不同的外部晶振对MCU性能有差异吗

Aiden zhang
Expert 2295 points
Part Number: TMS320F280049C
Other Parts Discussed in Thread: LAUNCHXL-F280049C

通过内部配置，MCU系统时钟都nneg运行在100M

10M晶振时，// PLLSYSCLK = 10MHz (XTAL_OSC) * 10 (IMULT) * 1 (FMULT) / 1 (PLLCLK_BY_1)

20M晶振时，// PLLSYSCLK = 10MHz (XTAL_OSC) * 10 (IMULT) * 1 (FMULT) / 2 (PLLCLK_BY_2)

请问，外接20M晶振和10M晶振有区别吗？