Module esp32s3::spi0::spi_smem_ddr

SPI0 external RAM DDR mode control register

Structs

• R
  Register SPI_SMEM_DDR reader
• SPI_SMEM_DDR_SPEC
  SPI0 external RAM DDR mode control register
• W
  Register SPI_SMEM_DDR writer

Type Definitions

• 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
• 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.
• 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.