Struct esp32s3::spi1::ddr::R

source ·
pub struct R(_);
Expand description

Register DDR reader

Implementations§

Bit 0 - 1: in DDR mode, 0: in SDR mode.

Bit 1 - Set the bit to enable variable dummy cycle in DDRmode.

Bit 2 - Set the bit to reorder RX data of the word in DDR mode.

Bit 3 - Set the bit to reorder TX data of the word in DDR mode.

Bit 4 - the bit is used to disable dual edge in command phase when DDR mode.

Bits 5:11 - It is the minimum output data length in the panda device.

Bits 14:20 - The delay number of data strobe which from memory based on SPI_CLK.

Bit 21 - 1: Use internal signal as data strobe, the strobe can not be delayed by input timing module. 0: Use input SPI_DQS signal from PAD as data strobe, the strobe can be delayed by input timing module

Bit 22 - When SPI_FMEM_DDR_DQS_LOOP and SPI_FMEM_DDR_EN are set, 1: Use internal SPI_CLK as data strobe. 0: Use internal ~SPI_CLK as data strobe. Otherwise this bit is not active.

Bit 24 - Set this bit to enable the differential SPI_CLK#.

Bit 25 - Set this bit to enable the SPI HyperBus mode.

Bit 26 - Set this bit to enable the input of SPI_DQS signal in SPI phases of CMD and ADDR.

Bit 27 - Set this bit to enable the vary dummy function in SPI HyperBus mode, when SPI0 accesses flash or SPI1 accesses flash or sram.

Bit 28 - Set this bit to invert SPI_DIFF when accesses to flash. .

Bit 29 - Set this bit to enable octa_ram address out when accesses to flash, which means ADDR_OUT[31:0] = {spi_usr_addr_value[25:4], 6’d0, spi_usr_addr_value[3:1], 1’b0}.

Bit 30 - Set this bit to enable HyperRAM address out when accesses to flash, which means ADDR_OUT[31:0] = {spi_usr_addr_value[19:4], 13’d0, spi_usr_addr_value[3:1]}.

Methods from Deref<Target = R<DDR_SPEC>>§

Reads raw bits from register.

Trait Implementations§

The resulting type after dereferencing.
Dereferences the value.
Converts to this type from the input type.

Auto Trait Implementations§

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