Datasheet

Option bytes STM8S003F3 STM8S003K3
44/103 DS7147 Rev 10
8.1 Alternate function remapping bits
Table 14. STM8S003K3 alternate function remapping bits for 32-pin devices
Option byte number Description
(1)
1. Do not use more than one remapping option in the same port. It is forbidden to enable both AFR1 and
AFR0
OPT2
AFR7Alternate function remapping option 7
Reserved.
AFR6 Alternate function remapping option 6
0: AFR6 remapping option inactive: default alternate function
(2)
1: Port D7 alternate function = TIM1_CH4.
AFR5 Alternate function remapping option 5
0: AFR5 remapping option inactive: default alternate function
(2)
1: Port D0 alternate function = CLK_CCO.
AFR[4:2] Alternate function remapping option 4:2
Reserved.
AFR1 Alternate function remapping option 1
0: AFR1 remapping option inactive: default alternate function
(2)
1: Port A3 alternate function = SPI_NSS; port D2 alternate function
TIM2_CH3
AFR0 Alternate function remapping option 0
Reserved.
2. Refer to the pinout description.