Usart Alternate Function Remapping; Table 28. Timer 1 Alternate Function Remapping; Table 29. Usart3 Remapping; Table 30. Usart2 Remapping - ST STM32F102 Series Reference Manual

General-purpose and alternate-function I/Os (GPIOs and AFIOs)
Table 28.
Alternate functions
TIM1_CH1N
TIM1_CH2N
TIM1_CH3N
1. Remap available only for 100-pin and 144-pin packages.
2. Remap not available on 36-pin package.
7.3.7

USART Alternate function remapping

Refer to
Table 29.
Alternate function
USART3_TX
USART3_RX
USART3_CK
USART3_CTS
USART3_RTS
1. Remap available only for 64-pin, 100-pin and 144-pin packages
2. Remap available only for 100-pin and 144-pin packages.
Table 30.
1. Remap available only for 100-pin and 144-pin packages.
114/690
Timer 1 alternate function remapping
TIM1_REMAP[1:0] =
mapping
TIM1_ETR
TIM1_CH1
TIM1_CH2
TIM1_CH3
TIM1_CH4
TIM1_BKIN
AF remap and debug I/O configuration register
USART3 remapping
USART3_REMAP[1:0]
= "00" (no remap)
USART2 remapping
Alternate functions
USART2_CTS
USART2_RTS
USART2_TX
USART2_RX
USART2_CK
TIM1_REMAP[1:0] =
"00" (no remap) "01" (partial remap)
PA12
PA8
PA9
PA10
PA11
(2)
PB12
(2)
PB13
(2)
PB14
(2)
PB15
USART3_REMAP[1:0]
= "01" (partial remap)
PB10
PB11
PB12
PB13
PB14
USART2_REMAP = 0
PA0
PA1
PA2
PA3
PA4
TIM1_REMAP[1:0] =
"11" (full remap)
PA6
PA7
PB0
PB1
(AFIO_MAPR).
USART3_REMAP[1:0]
= "11" (full remap)
(1)
PC10
PC11
PC12
USART2_REMAP = 1
RM0008
(1)
PE7
PE9
PE11
PE13
PE14
PE15
PE8
PE10
PE12
(2)
PD8
PD9
PD10
PD11
PD12
(1)
PD3
PD4
PD5
PD6
PD7