Maxim-Integrated /max32665 /SPI /DMA

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as DMA

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 0TX_FIFO_LEVEL 0 (dis)TX_FIFO_EN 0 (TX_FIFO_CLEAR)TX_FIFO_CLEAR 0TX_FIFO_CNT0 (DIS)TX_DMA_EN 0RX_FIFO_LEVEL 0 (DIS)RX_FIFO_EN 0 (RX_FIFO_CLEAR)RX_FIFO_CLEAR 0RX_FIFO_CNT0 (dis)RX_DMA_EN

RX_DMA_EN=dis, TX_FIFO_EN=dis, RX_FIFO_EN=DIS, TX_DMA_EN=DIS

Description

Register for controlling DMA.

Fields

TX_FIFO_LEVEL

Transmit FIFO level that will trigger a DMA request, also level for threshold status. When TX FIFO has fewer than this many bytes, the associated events and conditions are triggered.

TX_FIFO_EN

Transmit FIFO enabled for SPI transactions.

0 (dis): Transmit FIFO is not enabled.

1 (en): Transmit FIFO is enabled.

TX_FIFO_CLEAR

Clear TX FIFO, clear is accomplished by resetting the read and write pointers. This should be done when FIFO is not being accessed on the SPI side. .

1 (CLEAR): Clear the Transmit FIFO, clears any pending TX FIFO status.

TX_FIFO_CNT

Count of entries in TX FIFO.

TX_DMA_EN

TX DMA Enable.

0 (DIS): TX DMA requests are disabled, andy pending DMA requests are cleared.

1 (en): TX DMA requests are enabled.

RX_FIFO_LEVEL

Receive FIFO level that will trigger a DMA request, also level for threshold status. When RX FIFO has more than this many bytes, the associated events and conditions are triggered.

RX_FIFO_EN

Receive FIFO enabled for SPI transactions.

0 (DIS): Receive FIFO is not enabled.

1 (en): Receive FIFO is enabled.

RX_FIFO_CLEAR

Clear RX FIFO, clear is accomplished by resetting the read and write pointers. This should be done when FIFO is not being accessed on the SPI side.

1 (CLEAR): Clear the Receive FIFO, clears any pending RX FIFO status.

RX_FIFO_CNT

Count of entries in RX FIFO.

RX_DMA_EN

RX DMA Enable.

0 (dis): RX DMA requests are disabled, any pending DMA requests are cleared.

1 (en): RX DMA requests are enabled.

Links

()