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Espressif Systems /ESP32-C3 /SPI2 /DMA_CONF

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Interpret as DMA_CONF

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31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (DMA_SLV_SEG_TRANS_EN)DMA_SLV_SEG_TRANS_EN 0 (SLV_RX_SEG_TRANS_CLR_EN)SLV_RX_SEG_TRANS_CLR_EN 0 (SLV_TX_SEG_TRANS_CLR_EN)SLV_TX_SEG_TRANS_CLR_EN 0 (RX_EOF_EN)RX_EOF_EN 0 (DMA_RX_ENA)DMA_RX_ENA 0 (DMA_TX_ENA)DMA_TX_ENA 0 (RX_AFIFO_RST)RX_AFIFO_RST 0 (BUF_AFIFO_RST)BUF_AFIFO_RST 0 (DMA_AFIFO_RST)DMA_AFIFO_RST

Description

SPI DMA control register

Fields

DMA_SLV_SEG_TRANS_EN

Enable dma segment transfer in spi dma half slave mode. 1: enable. 0: disable.
SLV_RX_SEG_TRANS_CLR_EN

1: spi_dma_infifo_full_vld is cleared by spi slave cmd 5. 0: spi_dma_infifo_full_vld is cleared by spi_trans_done.
SLV_TX_SEG_TRANS_CLR_EN

1: spi_dma_outfifo_empty_vld is cleared by spi slave cmd 6. 0: spi_dma_outfifo_empty_vld is cleared by spi_trans_done.
RX_EOF_EN

1: spi_dma_inlink_eof is set when the number of dma pushed data bytes is equal to the value of spi_slv/mst_dma_rd_bytelen[19:0] in spi dma transition. 0: spi_dma_inlink_eof is set by spi_trans_done in non-seg-trans or spi_dma_seg_trans_done in seg-trans.
DMA_RX_ENA

Set this bit to enable SPI DMA controlled receive data mode.
DMA_TX_ENA

Set this bit to enable SPI DMA controlled send data mode.
RX_AFIFO_RST

Set this bit to reset RX AFIFO, which is used to receive data in SPI master and slave mode transfer.
BUF_AFIFO_RST

Set this bit to reset BUF TX AFIFO, which is used send data out in SPI slave CPU controlled mode transfer and master mode transfer.
DMA_AFIFO_RST

Set this bit to reset DMA TX AFIFO, which is used to send data out in SPI slave DMA controlled mode transfer.

Links

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Register License

Copyright 2024 Espressif Systems (Shanghai) PTE LTD

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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Register Reference

https://github.com/cmsis-svd/cmsis-svd-data