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PSoC 6 Peripheral Driver Library
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PSoC 6 Peripheral Driver Library
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The constants below can be used with the Cy_SD_Host_GetPresentState function.
Each status is encoded in a separate bit, and therefore it is possible to notify about multiple statuses.
Macros | |
| #define | CY_SD_HOST_CMD_INHIBIT (0x00000001UL) |
| Command Inhibit (CMD). More... | |
| #define | CY_SD_HOST_CMD_CMD_INHIBIT_DAT (0x00000002UL) |
| Command Inhibit (DAT). More... | |
| #define | CY_SD_HOST_DAT_LINE_ACTIVE (0x00000004UL) |
| DAT Line Active (SD/eMMC Mode only). More... | |
| #define | CY_SD_HOST_DAT_7_4 (0x000000F0UL) |
| DAT[7:4] Line Signal Level. More... | |
| #define | CY_SD_HOST_WR_XFER_ACTIVE (0x00000100UL) |
| Write Transfer Active This status indicates whether the Write transfer is active for SD/eMMC mode. | |
| #define | CY_SD_HOST_RD_XFER_ACTIVE (0x00000200UL) |
| Read Transfer Active. More... | |
| #define | CY_SD_HOST_BUF_WR_ENABLE (0x00000400UL) |
| Buffer Write Enable. More... | |
| #define | CY_SD_HOST_BUF_RD_ENABLE (0x00000800UL) |
| Buffer Read Enable. More... | |
| #define | CY_SD_HOST_CARD_INSERTED (0x00010000UL) |
| Card Inserted. More... | |
| #define | CY_SD_HOST_CARD_STABLE (0x00020000UL) |
| Card Stable. More... | |
| #define | CY_SD_HOST_CARD_DETECT_PIN_LEVEL (0x00040000UL) |
| Card Detect Pin Level. More... | |
| #define | CY_SD_HOST_WR_PROTECT_SW_LVL (0x00080000UL) |
| Write Protect Switch Pin Level. More... | |
| #define | CY_SD_HOST_DAT_3_0 (0x00F00000UL) |
| DAT[3:0] Line Signal Level. More... | |
| #define | CY_SD_HOST_CMD_LINE_LVL (0x01000000UL) |
| Command-Line Signal Level. More... | |
| #define | CY_SD_HOST_HOST_REG_VOL (0x02000000UL) |
| Host Regulator Voltage Stable. More... | |
| #define | CY_SD_HOST_CMD_ISSU_ERR (0x08000000UL) |
| Command Not Issued by Error. More... | |
| #define | CY_SD_HOST_SUB_CMD_STAT (0x10000000UL) |
| Sub Command Status. More... | |
| #define | CY_SD_HOST_IN_DORMANT_ST (0x20000000UL) |
| In Dormant Status. More... | |
| #define | CY_SD_HOST_LANE_SYNC (0x40000000UL) |
| Lane Synchronization. More... | |
| #define | CY_SD_HOST_UHS2_IF_DETECT (0x80000000UL) |
| UHS-II Interface Detection. More... | |
| #define CY_SD_HOST_CMD_INHIBIT (0x00000001UL) |
Command Inhibit (CMD).
This bit indicates the following:
| #define CY_SD_HOST_CMD_CMD_INHIBIT_DAT (0x00000002UL) |
Command Inhibit (DAT).
This bit is applicable for SD/eMMC mode and is generated if either the DAT line active or Read transfer active is set to 1. If this bit is set to 0, it indicates that the Host Controller can issue subsequent SD/eMMC commands.
| #define CY_SD_HOST_DAT_LINE_ACTIVE (0x00000004UL) |
DAT Line Active (SD/eMMC Mode only).
This bit indicates whether one of the DAT lines on the SD/eMMC bus is in use. For Read transactions, this bit indicates whether a read transfer is executing on the SD/eMMC bus. For Write transactions, this bit indicates whether a write transfer is executing on the SD/eMMC bus. For a command with the Busy status, this status indicates whether the command executing busy is executing on an SD or eMMC bus.
| #define CY_SD_HOST_DAT_7_4 (0x000000F0UL) |
DAT[7:4] Line Signal Level.
These bits are used to check the DAT line level to recover from errors and for debugging. These bits reflect the value of the sd_dat_in (upper nibble) signal.
| #define CY_SD_HOST_RD_XFER_ACTIVE (0x00000200UL) |
Read Transfer Active.
This bit indicates whether the Read transfer is active for SD/eMMC mode.
| #define CY_SD_HOST_BUF_WR_ENABLE (0x00000400UL) |
Buffer Write Enable.
This bit is used for non-DMA transfers. This bit is set if space is available for writing data.
| #define CY_SD_HOST_BUF_RD_ENABLE (0x00000800UL) |
Buffer Read Enable.
This bit is used for non-DMA transfers. This bit is set if valid data exists in the Host buffer.
| #define CY_SD_HOST_CARD_INSERTED (0x00010000UL) |
Card Inserted.
This bit indicates whether a card has been inserted. The Host Controller debounces this signal so that the Host Driver does not need to wait for the signal to stabilize.
| #define CY_SD_HOST_CARD_STABLE (0x00020000UL) |
Card Stable.
This bit indicates the stability of the Card Detect Pin Level. A card is not detected if this bit is set to 1 and the value of the CARD_INSERTED bit is 0.
| #define CY_SD_HOST_CARD_DETECT_PIN_LEVEL (0x00040000UL) |
Card Detect Pin Level.
This bit reflects the inverse synchronized value of the card_detect_n signal.
| #define CY_SD_HOST_WR_PROTECT_SW_LVL (0x00080000UL) |
Write Protect Switch Pin Level.
This bit is supported only for memory and combo cards. This bit reflects the synchronized value of the card_write_prot signal.
| #define CY_SD_HOST_DAT_3_0 (0x00F00000UL) |
DAT[3:0] Line Signal Level.
This bit is used to check the DAT line level to recover from errors and for debugging. These bits reflect the value of the sd_dat_in (lower nibble) signal.
| #define CY_SD_HOST_CMD_LINE_LVL (0x01000000UL) |
Command-Line Signal Level.
This bit is used to check the CMD line level to recover from errors and for debugging. These bits reflect the value of the sd_cmd_in signal.
| #define CY_SD_HOST_HOST_REG_VOL (0x02000000UL) |
Host Regulator Voltage Stable.
This bit is used to check whether the host regulator voltage is stable for switching the voltage of UHS-I mode. This bit reflects the synchronized value of the host_reg_vol_stable signal.
| #define CY_SD_HOST_CMD_ISSU_ERR (0x08000000UL) |
Command Not Issued by Error.
This bit is set if a command cannot be issued after setting the command register due to an error except an Auto CMD12 error.
| #define CY_SD_HOST_SUB_CMD_STAT (0x10000000UL) |
Sub Command Status.
This bit is used to distinguish between a main command and a sub command status.
| #define CY_SD_HOST_IN_DORMANT_ST (0x20000000UL) |
In Dormant Status.
This bit indicates whether UHS-II lanes enter the Dormant state in the UHS-II mode. For SD/eMMC mode, this bit always returns 0.
| #define CY_SD_HOST_LANE_SYNC (0x40000000UL) |
Lane Synchronization.
This bit indicates whether a lane is synchronized in UHSII mode. For SD/eMMC mode, this bit always returns 0.
| #define CY_SD_HOST_UHS2_IF_DETECT (0x80000000UL) |
UHS-II Interface Detection.
This bit indicates whether a card supports the UHS-II interface. For SD/eMMC mode, this bit always returns 0.