Module esp32s3::spi0::spi_smem_ddr

source ·
Expand description

SPI0 external RAM DDR mode control register

Structs

Type Aliases

  • CMD_DIS_R
    Field CMD_DIS reader - the bit is used to disable dual edge in CMD phase when ddr mode.
  • CMD_DIS_W
    Field CMD_DIS writer - the bit is used to disable dual edge in CMD phase when ddr mode.
  • DQS_LOOP_MODE_R
    Field DQS_LOOP_MODE reader - When SPI_SMEM_DDR_DQS_LOOP and SPI_SMEM_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.
  • DQS_LOOP_MODE_W
    Field DQS_LOOP_MODE writer - When SPI_SMEM_DDR_DQS_LOOP and SPI_SMEM_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.
  • DQS_LOOP_R
    Field DQS_LOOP reader - 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
  • DQS_LOOP_W
    Field DQS_LOOP writer - 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
  • EN_R
    Field EN reader - 1: in ddr mode, 0 in sdr mode
  • EN_W
    Field EN writer - 1: in ddr mode, 0 in sdr mode
  • R
    Register SPI_SMEM_DDR reader
  • RDAT_SWP_R
    Field RDAT_SWP reader - Set the bit to reorder rx data of the word in spi ddr mode.
  • RDAT_SWP_W
    Field RDAT_SWP writer - Set the bit to reorder rx data of the word in spi ddr mode.
  • SPI_SMEM_CLK_DIFF_EN_R
    Field SPI_SMEM_CLK_DIFF_EN reader - Set this bit to enable the differential SPI_CLK#.
  • SPI_SMEM_CLK_DIFF_EN_W
    Field SPI_SMEM_CLK_DIFF_EN writer - Set this bit to enable the differential SPI_CLK#.
  • SPI_SMEM_CLK_DIFF_INV_R
    Field SPI_SMEM_CLK_DIFF_INV reader - Set this bit to invert SPI_DIFF when accesses to external RAM. .
  • SPI_SMEM_CLK_DIFF_INV_W
    Field SPI_SMEM_CLK_DIFF_INV writer - Set this bit to invert SPI_DIFF when accesses to external RAM. .
  • SPI_SMEM_DQS_CA_IN_R
    Field SPI_SMEM_DQS_CA_IN reader - Set this bit to enable the input of SPI_DQS signal in SPI phases of CMD and ADDR.
  • SPI_SMEM_DQS_CA_IN_W
    Field SPI_SMEM_DQS_CA_IN writer - Set this bit to enable the input of SPI_DQS signal in SPI phases of CMD and ADDR.
  • SPI_SMEM_HYPERBUS_CA_R
    Field SPI_SMEM_HYPERBUS_CA reader - Set this bit to enable HyperRAM address out when accesses to external RAM, which means ADDR_OUT[31:0] = {spi_usr_addr_value[19:4], 13’d0, spi_usr_addr_value[3:1]}.
  • SPI_SMEM_HYPERBUS_CA_W
    Field SPI_SMEM_HYPERBUS_CA writer - Set this bit to enable HyperRAM address out when accesses to external RAM, which means ADDR_OUT[31:0] = {spi_usr_addr_value[19:4], 13’d0, spi_usr_addr_value[3:1]}.
  • SPI_SMEM_HYPERBUS_DUMMY_2X_R
    Field SPI_SMEM_HYPERBUS_DUMMY_2X reader - Set this bit to enable the vary dummy function in SPI HyperBus mode, when SPI0 accesses to flash or SPI1 accesses flash or sram.
  • SPI_SMEM_HYPERBUS_DUMMY_2X_W
    Field SPI_SMEM_HYPERBUS_DUMMY_2X writer - Set this bit to enable the vary dummy function in SPI HyperBus mode, when SPI0 accesses to flash or SPI1 accesses flash or sram.
  • SPI_SMEM_HYPERBUS_MODE_R
    Field SPI_SMEM_HYPERBUS_MODE reader - Set this bit to enable the SPI HyperBus mode.
  • SPI_SMEM_HYPERBUS_MODE_W
    Field SPI_SMEM_HYPERBUS_MODE writer - Set this bit to enable the SPI HyperBus mode.
  • SPI_SMEM_OCTA_RAM_ADDR_R
    Field SPI_SMEM_OCTA_RAM_ADDR reader - Set this bit to enable octa_ram address out when accesses to external RAM, which means ADDR_OUT[31:0] = {spi_usr_addr_value[25:4], 6’d0, spi_usr_addr_value[3:1], 1’b0}.
  • SPI_SMEM_OCTA_RAM_ADDR_W
    Field SPI_SMEM_OCTA_RAM_ADDR writer - Set this bit to enable octa_ram address out when accesses to external RAM, which means ADDR_OUT[31:0] = {spi_usr_addr_value[25:4], 6’d0, spi_usr_addr_value[3:1], 1’b0}.
  • SPI_SMEM_OUTMINBYTELEN_R
    Field SPI_SMEM_OUTMINBYTELEN reader - It is the minimum output data length in the ddr psram.
  • SPI_SMEM_OUTMINBYTELEN_W
    Field SPI_SMEM_OUTMINBYTELEN writer - It is the minimum output data length in the ddr psram.
  • SPI_SMEM_RX_DDR_MSK_EN_R
    Field SPI_SMEM_RX_DDR_MSK_EN reader - Set this bit to mask the first or the last byte in MSPI ECC DDR read mode, when accesses to external RAM.
  • SPI_SMEM_RX_DDR_MSK_EN_W
    Field SPI_SMEM_RX_DDR_MSK_EN writer - Set this bit to mask the first or the last byte in MSPI ECC DDR read mode, when accesses to external RAM.
  • SPI_SMEM_TX_DDR_MSK_EN_R
    Field SPI_SMEM_TX_DDR_MSK_EN reader - Set this bit to mask the first or the last byte in MSPI ECC DDR write mode, when accesses to external RAM.
  • SPI_SMEM_TX_DDR_MSK_EN_W
    Field SPI_SMEM_TX_DDR_MSK_EN writer - Set this bit to mask the first or the last byte in MSPI ECC DDR write mode, when accesses to external RAM.
  • SPI_SMEM_USR_DDR_DQS_THD_R
    Field SPI_SMEM_USR_DDR_DQS_THD reader - The delay number of data strobe which from memory based on SPI_CLK.
  • SPI_SMEM_USR_DDR_DQS_THD_W
    Field SPI_SMEM_USR_DDR_DQS_THD writer - The delay number of data strobe which from memory based on SPI_CLK.
  • SPI_SMEM_VAR_DUMMY_R
    Field SPI_SMEM_VAR_DUMMY reader - Set the bit to enable variable dummy cycle in spi ddr mode.
  • SPI_SMEM_VAR_DUMMY_W
    Field SPI_SMEM_VAR_DUMMY writer - Set the bit to enable variable dummy cycle in spi ddr mode.
  • W
    Register SPI_SMEM_DDR writer
  • WDAT_SWP_R
    Field WDAT_SWP reader - Set the bit to reorder tx data of the word in spi ddr mode.
  • WDAT_SWP_W
    Field WDAT_SWP writer - Set the bit to reorder tx data of the word in spi ddr mode.