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TMS320F28335: DSP下电时序问题

Part Number: TMS320F28335

28335规格书电源时序要求下电时必须要在内核VDD下到1.5V之前把XRS信号拉低,用以改善意外的程序烧写或擦除。如果因为某种意外情况未及时拉低会出现什么问题?比如正常运行过程中VDD内核电源突然下电,XRS信号来不及拉低,GPIO和PWM输出是否会出现错误的输出,Flash数据是否会被意外擦除或改写?请帮忙答复一下困扰已久的问题,谢谢!