ST STM32F051R8T6 User Manual page 21

UM1525
Table 6.
Main
function
PA4
PA5
PA6
PA7
PA8
PA9
MCU pin description versus board function (page 2 of 7)
MCU pin
Alternate
functions
1_NSS / 1_WS,
2_CK,
IN4,
14_CH1,
DAC1_OUT,
1_INM4,
2_INM4,
TSC_G2_IO1
1_SCK / 1_CK,
CEC,
IN5,
2_CH1_ETR,
(DAC2_OUT),
1_INM5,
2_INM5,
TSC_G2_IO2
1_MISO / 1_MCK,
IN6,
3_CH1,
1_BKIN,
16_CH1,
1_OUT,
TSC_G2_IO3,
EVENTOUT
1_MOSI / 1_SD,
IN7,
3_CH2,
14_CH1,
1_CH1N,
17_CH1,
2_OUT,
TSC_G2_IO4,
EVENTOUT
1_CK,
1_CH1,
EVENTOUT,
MCO
1_TX,
1_CH2,
15_BKIN,
TSC_G4_IO1
Doc ID 022910 Rev 2
Board function
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Hardware and layout
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