81
MCU port List
Pin number Pin Name Type Input/Output Main Function
1 NRST I/O Input Reset
2 PA1/OCSIN I/O Input Crystal IN
3 PA2/OSCOUT I/O Output Crystal OUT
4 VSSIO_1 S I/O Ground
5 VSS S Digital Ground
6 VCAP S 1.8V Regulator Capacitor
7 VDD S Digital Power Supply
8 VDDIO_1 S I/O Power Supply
9 PA3/TIM2_CH3 I/O Input Right Wheel Phase B Encoder
10 PA4/UART1_RX I/O Input Left Wheel Phase B Encoder
11 PA5/UART1_TX I/O Input Right Wheel Phase A Encoder
12 PA6/UART1_CK I/O Input Left Wheel Phase A Encoder
13 PH0 I/O Input DSP HREQ
14 PH1 I/O Output Phono1 Gain Switch
15 PH2 I/O Output Phono2 Gain Switch
16 PH3 I/O Input UMUTE
17 PF7/AIN15 I/O Input AD1
18 PF6/AIN14 I/O Input AD2
19 PF5/AIN13 I/O Input AD3
20 PF4/AIN12 I/O Input AD4
21 PF3/AIN11 I/O Input AD5
22 VREF+ S ADC positive reference voltage
23 VDDA S Analog power supply
24 VSSA S Analog ground
25 VREF- S ADC negative reference voltage
26 PF0/AIN10 I/O Input AD6
27 PB7/AIN7 I/O Input AD7
28 PB6/AIN6 I/O Input AD8
29 PB5/AIN5 I/O Input AD9
30 PB4/AIN4 I/O Input AD10
31 PB3/AIN3 I/O Input AD11
32 PB2/AIN2 I/O Input AD12
33 PB1/AIN1 I/O Input AD13
34 PB0/AIN0 I/O Input AD14
35 PH4/TIM1_ETR I/O Output SHCP
36 PH5/ TIM1_CH3N I/O Output /INT
37 PH6/ TIM1_CH2N I/O Input SPLIT
38 PH7/ TIM1_CH1N I/O Output /URST
39 PE7/AIN8 I/O Input AD15
40 PE6/AIN9 I/O Input CROF
41 PE5/SPI_NSS I/O Output /CS1
42 PC0/ADC_ETR I/O Input EN1
43 PC1/TIM1_CH1 I/O Input EN2
44 PC2/TIM1_CH2 I/O Input EN3