ST STM32F102 Series Reference Manual page 84

Reset and clock control (RCC)
Bit 12 SPI1RST SPI 1 reset
Set and reset by software.
0: No effect
1: Reset SPI 1
Bit 11 TIM1RST TIM1 timer reset
Set and reset by software.
0: No effect
1: Reset TIM1 timer
Bit 10 ADC2RST ADC 2 interface reset
Set and reset by software.
0: No effect
1: Reset ADC 2 interface
Bit 9 ADC1RST ADC 1 interface reset
Set and reset by software.
0: No effect
1: Reset ADC 1 interface
Bit 8 IOPGRST IO port G reset
Set and reset by software.
0: No effect
1: Reset IO port G
Bit 7 IOPFRST IO port F reset
Set and reset by software.
0: No effect
1: Reset IO port F
Bit 6 IOPERST IO port E reset
Set and reset by software.
0: No effect
1: Reset IO port E
Bit 5 IOPDRST IO port D reset
Set and reset by software.
0: No effect
1: Reset I/O port D
Bit 4 IOPCRST IO port C reset
Set and reset by software.
0: No effect
1: Reset I/O port C
Bit 3 IOPBRST IO port B reset
Set and reset by software.
0: No effect
1: Reset I/O port B
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RM0008