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DA16200 Datasheet(PDF) 43 Page - Renesas Technology Corp |
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DA16200 Datasheet(HTML) 43 Page - Renesas Technology Corp |
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43 / 154 page ![]() DA16200 Ultra Low Power Wi-Fi SoC Datasheet Revision 3.6 04-Jan-2023 CFR0011-120-00 43 of 153 © 2023 Renesas Electronics Table 31: DMA1 Served Peripherals DMA Channel Module Name Direction Transfer Size Channel 0 Mem-to-mem T/RX Word Channel 1 I2S RX Word Channel 2 I2S TX Word Channel 3 I2C RX Byte Channel 4 I2C TX Byte Channel 5 UART0 RX Byte Channel 6 UART0 TX Byte Channel 7 UART1 RX Byte Channel 8 UART1 TX Byte Channel 9 ADCFIFO[0] READ Halfword Channel 10 ADCFIFO[1] READ Halfword Channel 11 ADCFIFO[2] READ Halfword Channel 12 ADCFIFO[3] READ Halfword Channel 13 UART2 RX Byte Channel 14 UART2 TX Byte Channel 15 Mem-to-mem T/RX Word DA16200’s DMA1 controller supports the Linked-List Item (LLI) function that can sequentially operate multiple DMA tasks. It is possible to reduce the SW burden and process delay with this function. Figure 18 shows the DMA1 state machine. Finish IDLE0 Start INIT10 R_FIRST1 R_FIRST_LOAD11 W_FIRST9 C_NEXT13 R_NEXT_LOAD12 R_NEXT8 R_COMMAND2 R_SRC_ADDR3 R_DST_ADDR4 R_DATA5 W_COMMNAD7 W_DATA6 Arbitration necessary Request Start next DMA task Next descriptor exist Next descriptor doesn't exist Current DMA task not finished (arbitration necessary) No arbitration necessary, and DMA task not finished Arbitration necessary, or finish current DMA task LLI Figure 18: DMA1 State Machine |
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