Datasheet

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STM8S105x4/6 Option byte
50
8.1 Alternate function remapping bits
Table 13. Alternate function remapping bits [7:0] of OPT2
Option byte no. Description
(1)
1. Do not use more than one remapping option in the same port.
OPT2
AFR7 Alternate function remapping option 7
0: AFR7 remapping option inactive: Default alternate functions.
(2)
1: Port D4 alternate function = BEEP.
AFR6 Alternate function remapping option 6
0: AFR6 remapping option inactive: Default alternate function.
(2)
1: Port B5 alternate function = I2C_SDA; port B4 alternate function =
I2C_SCL.
AFR5 Alternate function remapping option 5
0: AFR5 remapping option inactive: Default alternate function.
(2)
1: Port B3 alternate function = TIM1_ETR; port B2 alternate function =
TIM1_NCC3; port B1 alternate function = TIM1_CH2N; port B0 alternate
function = TIM1_CH1N.
AFR4 Alternate function remapping option 4
0: AFR4 remapping option inactive: Default alternate functions.
(2)
1: Port D7 alternate function = TIM1_CH4.
AFR3 Alternate function remapping option 3
0: AFR3 remapping option inactive: Default alternate function.
(2)
1: Port D0 alternate function = TIM1_BKIN.
AFR2 Alternate function remapping option 2
0: AFR2 remapping option inactive: Default alternate functions.
(2)
1: Port D0 alternate function = CLK_CCO. Note: AFR2 option has priority
over AFR3 if both are activated.
AFR1 Alternate function remapping option 1
0: AFR1 remapping option inactive: Default alternate functions.
(2)
1: Port A3 alternate function = TIM3_CH1; port D2 alternate function
TIM2_CH3
AFR0 Alternate function remapping option 0
0: AFR0 remapping option inactive: Default alternate functions.
(2)
1: Port D3 alternate function = ADC_ETR.
2. Refer to STM8S105x4/6 pin descriptions.
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