大家好！

本人刚接触ST单片机，最近在调试STM8S103，发现一个问题，请教大家。
数据手册上关于管脚映射的说明如下所示：

AFR1 Alternate function remapping option 1 (2)
0: AFR1 remapping option inactive: default alternate function(1)
1: Port A3 alternate function = SPI_NSS; port D2 alternate function =TIM2_CH3.

AFR0 Alternate function remapping option 0(2)
0: AFR0 remapping option inactive: Default alternate functions(1)
1: Port C5 alternate function = TIM2_CH1; port C6 alternate function =TIM1_CH1; port C7 alternate function = TIM1_CH2.

1. Refer to the pinout description.
2. Do not use more than one remapping option in the same port. It is forbidden to enable both AFR1 and AFR0.

问题：
我在调试中发现：即使同时使能了上述两项（AFR0,AFR1），MCU似乎也正常工作。
现在我暂时不想改动硬件设计，请教大家：同时使能AFR0和AFR1会导致什么BUG吗？

谢谢！