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AN666

USAGE GUIDE FOR SIM3U1XX, SIM3C1XX, AND SIM3L1XX DMA AND DTM MODULES

Silicon Laboratories 

AN666

4.2. DMA Peripheral Crossbar

Peripherals are assigned to various channels, and the DMA Crossbar can be used to assign a channel to a

particular peripheral. These assignments are shown in Table 4.

Table 4. DMA Crossbar Channel Peripheral Assignments for SiM3U1xx Devices

Peripheral

AES0 RX





AES0 TX





AES0 XOR





DMAXT0



DMAXT1



EPCA0 Capture





EPCA0 Control

I2C0 RX

I2C0 TX















I2S RX





I2S TX





IDAC0

IDAC1

SARADC0















SARADC1







SPI0 RX





SPI0 TX





SPI1 RX





SPI1 TX







TIMER0L Overflow  

TIMER0H Overflow 



















TIMER1L Overflow  







TIMER1H Overflow  











8

Rev. 0.1

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