ST STM32F102 series User Manual

RM0008 DMA controller (DMA)
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Figure 20. DMA2 request mapping
Tabl e 4 0 lists the DMA2 requests for each channel.
Table 40. Summary of DMA2 requests for each channel
Peripherals Channel 1 Channel 2 Channel 3 Channel 4 Channel 5
ADC3 ADC3
SPI/I2S3 SPI/I2S3_RX SPI/I2S3_TX
UART4 UART4_RX UART4_TX
SDIO SDIO
TIM5
TIM5_CH4
TIM5_TRIG
TIM5_CH3
TIM5_UP
TIM5_CH2 TIM5_CH1
TIM6/
DAC_Channel1
TIM6_UP/
DAC_Channel1
TIM7/
DAC_Channel2
TIM7_UP/
DAC_Channel2
TIM8
TIM8_CH3
TIM8_UP
TIM8_CH4
TIM8_TRIG
TIM8_COM
TIM8_CH1 TIM8_CH2
Fixed hardware priority
Channel 3
internal
HW request 3
HIGH PRIORITY
LOW PRIORITY
Peripheral request signals
Channel 2
HW request 2
Channel 1
SW trigger (MEM2MEM bit)
Channel 1 EN bit
HW request 1
Channel 4
HW request 4
DMA2
Channel 5
HW request 5
request
TIM5_CH2
SDIO
TIM5_CH4
TIM8_UP
TIM7_UP/DAC_Channel2
TIM8_CH3
TIM5_TRIG
Channel 2 EN bit
Channel 3 EN bit
Channel 4 EN bit
Channel 5 EN bit
SW trigger (MEM2MEM bit)
SW trigger (MEM2MEM bit)
SW trigger (MEM2MEM bit)
SW trigger (MEM2MEM bit)
SPI/I2S3_RX
TIM8_CH4
TIM5_UP
TIM5_CH3
TIM8_TRIG
TIM8_COM
SPI/I2S3_TX
TIM8_CH1
UART4_RX
TIM6_UP/DAC_Channel1
ADC3
UART4_TX
TIM8_CH2
TIM5_CH1

ST STM32F102 series Specifications

General

Brand	ST
Model	STM32F102 series
Category	Microcontrollers
Language	English