SAM3XA HSMCI

High Speed MultiMedia Card Interface (HSMCI) User Interface

Registers

Register Mapping

Address	Register	Name	Access	Reset
0x40000000	Control Register	HSMCI_CR	write-only	-
0x40000004	Mode Register	HSMCI_MR	read-write	0x00000000
0x40000008	Data Timeout Register	HSMCI_DTOR	read-write	0x00000000
0x4000000C	SD/SDIO Card Register	HSMCI_SDCR	read-write	0x00000000
0x40000010	Argument Register	HSMCI_ARGR	read-write	0x00000000
0x40000014	Command Register	HSMCI_CMDR	write-only	-
0x40000018	Block Register	HSMCI_BLKR	read-write	0x00000000
0x4000001C	Completion Signal Timeout Register	HSMCI_CSTOR	read-write	0x00000000
0x40000020	Response Register	HSMCI_RSPR[4]	read-only	0x00000000
0x40000030	Receive Data Register	HSMCI_RDR	read-only	0x00000000
0x40000034	Transmit Data Register	HSMCI_TDR	write-only	-
0x40000040	Status Register	HSMCI_SR	read-only	0x0000C0E5
0x40000044	Interrupt Enable Register	HSMCI_IER	write-only	-
0x40000048	Interrupt Disable Register	HSMCI_IDR	write-only	-
0x4000004C	Interrupt Mask Register	HSMCI_IMR	read-only	0x00000000
0x40000050	DMA Configuration Register	HSMCI_DMA	read-write	0x00000000
0x40000054	Configuration Register	HSMCI_CFG	read-write	0x00000000
0x400000E4	Write Protection Mode Register	HSMCI_WPMR	read-write	-
0x400000E8	Write Protection Status Register	HSMCI_WPSR	read-only	-
0x40000200	FIFO Memory Aperture0	HSMCI_FIFO[256]	read-write	0x0

Register Fields

HSMCI Control Register

Name: HSMCI_CR

Access: write-only

Address: 0x40000000

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	-	-	-	-	-	-	-
7	6	5	4	3	2	1	0
SWRST	-	-	-	PWSDIS	PWSEN	MCIDIS	MCIEN

• MCIEN: Multi-Media Interface Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the Multi-Media Interface if MCDIS is 0.

• MCIDIS: Multi-Media Interface Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the Multi-Media Interface.

• PWSEN: Power Save Mode Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the Power Saving Mode if PWSDIS is 0.

• PWSDIS: Power Save Mode Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the Power Saving Mode.

• SWRST: Software Reset

  Value	Name	Description
  0	-	No effect.
  1	-	Resets the HSMCI. A software triggered hardware reset of the HSMCI interface is performed.

HSMCI Mode Register

Name: HSMCI_MR

Access: read-write

Address: 0x40000004

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	PADV	FBYTE	WRPROOF	RDPROOF	PWSDIV
7	6	5	4	3	2	1	0
CLKDIV

• CLKDIV: Clock Divider

-

• PWSDIV: Power Saving Divider

-

• RDPROOF

  Value	Name	Description
  0	-	Disables Read Proof.
  1	-	Enables Read Proof.

• WRPROOF

  Value	Name	Description
  0	-	Disables Write Proof.
  1	-	Enables Write Proof.

• FBYTE: Force Byte Transfer

  Value	Name	Description
  0	-	Disables Force Byte Transfer.
  1	-	Enables Force Byte Transfer.

• PADV: Padding Value

  Value	Name	Description
  0	-	0x00 value is used when padding data in write transfer.
  1	-	0xFF value is used when padding data in write transfer.

HSMCI Data Timeout Register

Name: HSMCI_DTOR

Access: read-write

Address: 0x40000008

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	-	-	-	-	-	-	-
7	6	5	4	3	2	1	0
-	DTOMUL			DTOCYC

• DTOCYC: Data Timeout Cycle Number

-

• DTOMUL: Data Timeout Multiplier

  Value	Name	Description
  0x0	1	DTOCYC
  0x1	16	DTOCYC x 16
  0x2	128	DTOCYC x 128
  0x3	256	DTOCYC x 256
  0x4	1024	DTOCYC x 1024
  0x5	4096	DTOCYC x 4096
  0x6	65536	DTOCYC x 65536
  0x7	1048576	DTOCYC x 1048576

HSMCI SD/SDIO Card Register

Name: HSMCI_SDCR

Access: read-write

Address: 0x4000000C

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	-	-	-	-	-	-	-
7	6	5	4	3	2	1	0
SDCBUS		-	-	-	-	SDCSEL

• SDCSEL: SDCard/SDIO Slot

  Value	Name	Description
  0x0	SLOTA	Slot A is selected.
  0x1	SLOTB	SDCARD/SDIO Slot B selected
  0x2	SLOTC	-
  0x3	SLOTD	-

• SDCBUS: SDCard/SDIO Bus Width

  Value	Name	Description
  0x0	1	1 bit
  0x2	4	4 bit
  0x3	8	8 bit

HSMCI Argument Register

Name: HSMCI_ARGR

Access: read-write

Address: 0x40000010

31	30	29	28	27	26	25	24
ARG
23	22	21	20	19	18	17	16
ARG
15	14	13	12	11	10	9	8
ARG
7	6	5	4	3	2	1	0
ARG

• ARG: Command Argument

-

HSMCI Command Register

Name: HSMCI_CMDR

Access: write-only

Address: 0x40000014

31	30	29	28	27	26	25	24
-	-	-	-	BOOT_ACK	ATACS	IOSPCMD
23	22	21	20	19	18	17	16
-	-	TRTYP			TRDIR	TRCMD
15	14	13	12	11	10	9	8
-	-	-	MAXLAT	OPDCMD	SPCMD
7	6	5	4	3	2	1	0
RSPTYP		CMDNB

• CMDNB: Command Number

-

• RSPTYP: Response Type

  Value	Name	Description
  0x0	NORESP	No response.
  0x1	48_BIT	48-bit response.
  0x2	136_BIT	136-bit response.
  0x3	R1B	R1b response type

• SPCMD: Special Command

  Value	Name	Description
  0x0	STD	Not a special CMD.
  0x1	INIT	Initialization CMD: 74 clock cycles for initialization sequence.
  0x2	SYNC	Synchronized CMD: Wait for the end of the current data block transfer before sending the pending command.
  0x3	CE_ATA	CE-ATA Completion Signal disable Command. The host cancels the ability for the device to return a command completion signal on the command line.
  0x4	IT_CMD	Interrupt command: Corresponds to the Interrupt Mode (CMD40).
  0x5	IT_RESP	Interrupt response: Corresponds to the Interrupt Mode (CMD40).
  0x6	BOR	Boot Operation Request. Start a boot operation mode, the host processor can read boot data from the MMC device directly.
  0x7	EBO	End Boot Operation. This command allows the host processor to terminate the boot operation mode.

• OPDCMD: Open Drain Command

  Value	Name	Description
  0	PUSHPULL	Push pull command.
  1	OPENDRAIN	Open drain command.

• MAXLAT: Max Latency for Command to Response

  Value	Name	Description
  0	5	5-cycle max latency.
  1	64	64-cycle max latency.

• TRCMD: Transfer Command

  Value	Name	Description
  0x0	NO_DATA	No data transfer
  0x1	START_DATA	Start data transfer
  0x2	STOP_DATA	Stop data transfer

• TRDIR: Transfer Direction

  Value	Name	Description
  0	WRITE	Write.
  1	READ	Read.

• TRTYP: Transfer Type

  Value	Name	Description
  0x0	SINGLE	MMC/SDCard Single Block
  0x1	MULTIPLE	MMC/SDCard Multiple Block
  0x2	STREAM	MMC Stream
  0x4	BYTE	SDIO Byte
  0x5	BLOCK	SDIO Block

• IOSPCMD: SDIO Special Command

  Value	Name	Description
  0x0	STD	Not an SDIO Special Command
  0x1	SUSPEND	SDIO Suspend Command
  0x2	RESUME	SDIO Resume Command

• ATACS: ATA with Command Completion Signal

  Value	Name	Description
  0	NORMAL	Normal operation mode.
  1	COMPLETION	This bit indicates that a completion signal is expected within a programmed amount of time (HSMCI_CSTOR).

• BOOT_ACK: Boot Operation Acknowledge.

-

HSMCI Block Register

Name: HSMCI_BLKR

Access: read-write

Address: 0x40000018

31	30	29	28	27	26	25	24
BLKLEN
23	22	21	20	19	18	17	16
BLKLEN
15	14	13	12	11	10	9	8
BCNT
7	6	5	4	3	2	1	0
BCNT

• BCNT: MMC/SDIO Block Count - SDIO Byte Count

  Value	Name	Description
  0x0	MULTIPLE	MMC/SDCARD Multiple BlockFrom 1 to 65635: Value 0 corresponds to an infinite block transfer.
  0x4	BYTE	SDIO ByteFrom 1 to 512 bytes: Value 0 corresponds to a 512-byte transfer.Values from 0x200 to 0xFFFF are forbidden.
  0x5	BLOCK	SDIO BlockFrom 1 to 511 blocks: Value 0 corresponds to an infinite block transfer.Values from 0x200 to 0xFFFF are forbidden.

• BLKLEN: Data Block Length

-

HSMCI Completion Signal Timeout Register

Name: HSMCI_CSTOR

Access: read-write

Address: 0x4000001C

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	-	-	-	-	-	-	-
7	6	5	4	3	2	1	0
-	CSTOMUL			CSTOCYC

• CSTOCYC: Completion Signal Timeout Cycle Number

-

• CSTOMUL: Completion Signal Timeout Multiplier

  Value	Name	Description
  0x0	1	CSTOCYC x 1
  0x1	16	CSTOCYC x 16
  0x2	128	CSTOCYC x 128
  0x3	256	CSTOCYC x 256
  0x4	1024	CSTOCYC x 1024
  0x5	4096	CSTOCYC x 4096
  0x6	65536	CSTOCYC x 65536
  0x7	1048576	CSTOCYC x 1048576

HSMCI Response Register

Name: HSMCI_RSPR[0:3]

Access: read-only

Address: 0x40000020

31	30	29	28	27	26	25	24
RSP
23	22	21	20	19	18	17	16
RSP
15	14	13	12	11	10	9	8
RSP
7	6	5	4	3	2	1	0
RSP

• RSP: Response

-

HSMCI Receive Data Register

Name: HSMCI_RDR

Access: read-only

Address: 0x40000030

31	30	29	28	27	26	25	24
DATA
23	22	21	20	19	18	17	16
DATA
15	14	13	12	11	10	9	8
DATA
7	6	5	4	3	2	1	0
DATA

• DATA: Data to Read

-

HSMCI Transmit Data Register

Name: HSMCI_TDR

Access: write-only

Address: 0x40000034

31	30	29	28	27	26	25	24
DATA
23	22	21	20	19	18	17	16
DATA
15	14	13	12	11	10	9	8
DATA
7	6	5	4	3	2	1	0
DATA

• DATA: Data to Write

-

HSMCI Status Register

Name: HSMCI_SR

Access: read-only

Address: 0x40000040

31	30	29	28	27	26	25	24
UNRE	OVRE	ACKRCVE	ACKRCV	XFRDONE	FIFOEMPTY	DMADONE	BLKOVRE
23	22	21	20	19	18	17	16
CSTOE	DTOE	DCRCE	RTOE	RENDE	RCRCE	RDIRE	RINDE
15	14	13	12	11	10	9	8
-	-	CSRCV	SDIOWAIT	-	-	SDIOIRQforSlotB	SDIOIRQforSlotA
7	6	5	4	3	2	1	0
-	-	NOTBUSY	DTIP	BLKE	TXRDY	RXRDY	CMDRDY

• CMDRDY: Command Ready

  Value	Name	Description
  0	-	A command is in progress.
  1	-	The last command has been sent. Cleared when writing in the HSMCI_CMDR.

• RXRDY: Receiver Ready

  Value	Name	Description
  0	-	Data has not yet been received since the last read of HSMCI_RDR.
  1	-	Data has been received since the last read of HSMCI_RDR.

• TXRDY: Transmit Ready

  Value	Name	Description
  0	-	The last data written in HSMCI_TDR has not yet been transferred in the Shift Register.
  1	-	The last data written in HSMCI_TDR has been transferred in the Shift Register.

• BLKE: Data Block Ended

  Value	Name	Description
  0	-	A data block transfer is not yet finished. Cleared when reading the HSMCI_SR.
  1	-	A data block transfer has ended, including the CRC16 Status transmission. the flag is set for each transmitted CRC Status.

• DTIP: Data Transfer in Progress

  Value	Name	Description
  0	-	No data transfer in progress.
  1	-	The current data transfer is still in progress, including CRC16 calculation. Cleared at the end of the CRC16 calculation.

• NOTBUSY: HSMCI Not Busy

  Value	Name	Description
  0	-	The HSMCI is not ready for new data transfer. Cleared at the end of the card response.
  1	-	The HSMCI is ready for new data transfer. Set when the busy state on the data line has ended. This corresponds to a free internal data receive buffer of the card.

• SDIOIRQforSlotA

-

• SDIOIRQforSlotB

-

• SDIOWAIT: SDIO Read Wait Operation Status

  Value	Name	Description
  0	-	Normal Bus operation.
  1	-	The data bus has entered IO wait state.

• CSRCV: CE-ATA Completion Signal Received

  Value	Name	Description
  0	-	No completion signal received since last status read operation.
  1	-	The device has issued a command completion signal on the command line. Cleared by reading in the HSMCI_SR register.

• RINDE: Response Index Error

  Value	Name	Description
  0	-	No error.
  1	-	A mismatch is detected between the command index sent and the response index received. Cleared when writing in the HSMCI_CMDR.

• RDIRE: Response Direction Error

  Value	Name	Description
  0	-	No error.
  1	-	The direction bit from card to host in the response has not been detected.

• RCRCE: Response CRC Error

  Value	Name	Description
  0	-	No error.
  1	-	A CRC7 error has been detected in the response. Cleared when writing in the HSMCI_CMDR.

• RENDE: Response End Bit Error

  Value	Name	Description
  0	-	No error.
  1	-	The end bit of the response has not been detected. Cleared when writing in the HSMCI_CMDR.

• RTOE: Response Time-out Error

  Value	Name	Description
  0	-	No error.
  1	-	The response time-out set by MAXLAT in the HSMCI_CMDR has been exceeded. Cleared when writing in the HSMCI_CMDR.

• DCRCE: Data CRC Error

  Value	Name	Description
  0	-	No error.
  1	-	A CRC16 error has been detected in the last data block. Cleared by reading in the HSMCI_SR register.

• DTOE: Data Time-out Error

  Value	Name	Description
  0	-	No error.
  1	-	The data time-out set by DTOCYC and DTOMUL in HSMCI_DTOR has been exceeded. Cleared by reading in the HSMCI_SR register.

• CSTOE: Completion Signal Time-out Error

  Value	Name	Description
  0	-	No error.
  1	-	The completion signal time-out set by CSTOCYC and CSTOMUL in HSMCI_CSTOR has been exceeded. Cleared by reading in the HSMCI_SR register. Cleared by reading in the HSMCI_SR register.

• BLKOVRE: DMA Block Overrun Error

  Value	Name	Description
  0	-	No error.
  1	-	A new block of data is received and the DMA controller has not started to move the current pending block, a block over-run is raised. Cleared by reading in the HSMCI_SR register.

• DMADONE: DMA Transfer done

  Value	Name	Description
  0	-	DMA buffer transfer has not completed since the last read of HSMCI_SR register.
  1	-	DMA buffer transfer has completed.

• FIFOEMPTY: FIFO empty flag

  Value	Name	Description
  0	-	FIFO contains at least one byte.
  1	-	FIFO is empty.

• XFRDONE: Transfer Done flag

  Value	Name	Description
  0	-	A transfer is in progress.
  1	-	Command register is ready to operate and the data bus is in the idle state.

• ACKRCV: Boot Operation Acknowledge Received

  Value	Name	Description
  0	-	No Boot acknowledge received since the last read of the status register.
  1	-	A Boot acknowledge signal has been received. Cleared by reading the HSMCI_SR register.

• ACKRCVE: Boot Operation Acknowledge Error

  Value	Name	Description
  0	-	No error
  1	-	Corrupted Boot Acknowledge signal received.

• OVRE: Overrun

  Value	Name	Description
  0	-	No error.
  1	-	At least one 8-bit received data has been lost (not read). Cleared when sending a new data transfer command.

• UNRE: Underrun

  Value	Name	Description
  0	-	No error.
  1	-	At least one 8-bit data has been sent without valid information (not written). Cleared when sending a new data transfer command or when setting FERRCTRL in HSMCI_CFG to 1.

HSMCI Interrupt Enable Register

Name: HSMCI_IER

Access: write-only

Address: 0x40000044

31	30	29	28	27	26	25	24
UNRE	OVRE	ACKRCVE	ACKRCV	XFRDONE	FIFOEMPTY	DMADONE	BLKOVRE
23	22	21	20	19	18	17	16
CSTOE	DTOE	DCRCE	RTOE	RENDE	RCRCE	RDIRE	RINDE
15	14	13	12	11	10	9	8
-	-	CSRCV	SDIOWAIT	-	-	SDIOIRQforSlotB	SDIOIRQforSlotA
7	6	5	4	3	2	1	0
-	-	NOTBUSY	DTIP	BLKE	TXRDY	RXRDY	CMDRDY

• CMDRDY: Command Ready Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• RXRDY: Receiver Ready Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• TXRDY: Transmit Ready Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• BLKE: Data Block Ended Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• DTIP: Data Transfer in Progress Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• NOTBUSY: Data Not Busy Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• SDIOIRQforSlotA

-

• SDIOIRQforSlotB

-

• SDIOWAIT: SDIO Read Wait Operation Status Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• CSRCV: Completion Signal Received Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• RINDE: Response Index Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• RDIRE: Response Direction Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• RCRCE: Response CRC Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• RENDE: Response End Bit Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• RTOE: Response Time-out Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• DCRCE: Data CRC Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• DTOE: Data Time-out Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• CSTOE: Completion Signal Timeout Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• BLKOVRE: DMA Block Overrun Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• DMADONE: DMA Transfer completed Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• FIFOEMPTY: FIFO empty Interrupt enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• XFRDONE: Transfer Done Interrupt enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• ACKRCV: Boot Acknowledge Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• ACKRCVE: Boot Acknowledge Error Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• OVRE: Overrun Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

• UNRE: Underrun Interrupt Enable

  Value	Name	Description
  0	-	No effect.
  1	-	Enables the corresponding interrupt.

HSMCI Interrupt Disable Register

Name: HSMCI_IDR

Access: write-only

Address: 0x40000048

31	30	29	28	27	26	25	24
UNRE	OVRE	ACKRCVE	ACKRCV	XFRDONE	FIFOEMPTY	DMADONE	BLKOVRE
23	22	21	20	19	18	17	16
CSTOE	DTOE	DCRCE	RTOE	RENDE	RCRCE	RDIRE	RINDE
15	14	13	12	11	10	9	8
-	-	CSRCV	SDIOWAIT	-	-	SDIOIRQforSlotB	SDIOIRQforSlotA
7	6	5	4	3	2	1	0
-	-	NOTBUSY	DTIP	BLKE	TXRDY	RXRDY	CMDRDY

• CMDRDY: Command Ready Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• RXRDY: Receiver Ready Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• TXRDY: Transmit Ready Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• BLKE: Data Block Ended Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• DTIP: Data Transfer in Progress Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• NOTBUSY: Data Not Busy Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• SDIOIRQforSlotA

-

• SDIOIRQforSlotB

-

• SDIOWAIT: SDIO Read Wait Operation Status Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• CSRCV: Completion Signal received interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• RINDE: Response Index Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• RDIRE: Response Direction Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• RCRCE: Response CRC Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• RENDE: Response End Bit Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• RTOE: Response Time-out Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• DCRCE: Data CRC Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• DTOE: Data Time-out Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• CSTOE: Completion Signal Time out Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• BLKOVRE: DMA Block Overrun Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• DMADONE: DMA Transfer completed Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• FIFOEMPTY: FIFO empty Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• XFRDONE: Transfer Done Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• ACKRCV: Boot Acknowledge Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• ACKRCVE: Boot Acknowledge Error Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• OVRE: Overrun Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

• UNRE: Underrun Interrupt Disable

  Value	Name	Description
  0	-	No effect.
  1	-	Disables the corresponding interrupt.

HSMCI Interrupt Mask Register

Name: HSMCI_IMR

Access: read-only

Address: 0x4000004C

31	30	29	28	27	26	25	24
UNRE	OVRE	ACKRCVE	ACKRCV	XFRDONE	FIFOEMPTY	DMADONE	BLKOVRE
23	22	21	20	19	18	17	16
CSTOE	DTOE	DCRCE	RTOE	RENDE	RCRCE	RDIRE	RINDE
15	14	13	12	11	10	9	8
-	-	CSRCV	SDIOWAIT	-	-	SDIOIRQforSlotB	SDIOIRQforSlotA
7	6	5	4	3	2	1	0
-	-	NOTBUSY	DTIP	BLKE	TXRDY	RXRDY	CMDRDY

• CMDRDY: Command Ready Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• RXRDY: Receiver Ready Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• TXRDY: Transmit Ready Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• BLKE: Data Block Ended Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• DTIP: Data Transfer in Progress Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• NOTBUSY: Data Not Busy Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• SDIOIRQforSlotA

-

• SDIOIRQforSlotB

-

• SDIOWAIT: SDIO Read Wait Operation Status Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• CSRCV: Completion Signal Received Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• RINDE: Response Index Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• RDIRE: Response Direction Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• RCRCE: Response CRC Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• RENDE: Response End Bit Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• RTOE: Response Time-out Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• DCRCE: Data CRC Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• DTOE: Data Time-out Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• CSTOE: Completion Signal Time-out Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• BLKOVRE: DMA Block Overrun Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• DMADONE: DMA Transfer Completed Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• FIFOEMPTY: FIFO Empty Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• XFRDONE: Transfer Done Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• ACKRCV: Boot Operation Acknowledge Received Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• ACKRCVE: Boot Operation Acknowledge Error Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• OVRE: Overrun Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

• UNRE: Underrun Interrupt Mask

  Value	Name	Description
  0	-	The corresponding interrupt is not enabled.
  1	-	The corresponding interrupt is enabled.

HSMCI DMA Configuration Register

Name: HSMCI_DMA

Access: read-write

Address: 0x40000050

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	-	-	ROPT	-	-	-	DMAEN
7	6	5	4	3	2	1	0
-	-	-	CHKSIZE	-	-	OFFSET

• OFFSET: DMA Write Buffer Offset

-

• CHKSIZE: DMA Channel Read and Write Chunk Size

  Value	Name	Description
  0	1	1 data available
  1	4	4 data available

• DMAEN: DMA Hardware Handshaking Enable

  Value	Name	Description
  0	-	DMA interface is disabled.
  1	-	DMA Interface is enabled.

• ROPT: Read Optimization with padding

  Value	Name	Description
  0	-	BLKLEN bytes are moved from the Memory Card to the system memory, two DMA descriptors are used when the trans-fer size is not a multiple of 4.
  1	-	Ceiling(BLKLEN/4) * 4 bytes are moved from the Memory Card to the system memory, only one DMA descriptor is used.

HSMCI Configuration Register

Name: HSMCI_CFG

Access: read-write

Address: 0x40000054

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
-	-	-	-	-	-	-	-
15	14	13	12	11	10	9	8
-	-	-	LSYNC	-	-	-	HSMODE
7	6	5	4	3	2	1	0
-	-	-	FERRCTRL	-	-	-	FIFOMODE

• FIFOMODE: HSMCI Internal FIFO control mode

-

• FERRCTRL: Flow Error flag reset control mode

  Value	Name	Description
  0	-	When an underflow/overflow condition flag is set, a new Write/Read command is needed to reset the flag.
  1	-	When an underflow/overflow condition flag is set, a read status resets the flag.

• HSMODE: High Speed Mode

  Value	Name	Description
  0	-	Default bus timing mode.
  1	-	If set to one, the host controller outputs command line and data lines on the rising edge of the card clock. The Host driver shall check the high speed support in the card registers.

• LSYNC: Synchronize on the last block

  Value	Name	Description
  0	-	The pending command is sent at the end of the current data block.
  1	-	The pending command is sent at the end of the block transfer when the transfer length is not infinite. (block count shall be different from zero)

HSMCI Write Protection Mode Register

Name: HSMCI_WPMR

Access: read-write

Address: 0x400000E4

31	30	29	28	27	26	25	24
WP_KEY
23	22	21	20	19	18	17	16
WP_KEY
15	14	13	12	11	10	9	8
WP_KEY
7	6	5	4	3	2	1	0
-	-	-	-	-	-	-	WP_EN

• WP_EN: Write Protection Enable

  Value	Name	Description
  0	-	Disables the Write Protection if WP_KEY corresponds to 0x4D4349 ("MCI' in ASCII).
  1	-	Enables the Write Protection if WP_KEY corresponds to 0x4D4349 ("MCI' in ASCII).

• WP_KEY: Write Protection Key password

-

HSMCI Write Protection Status Register

Name: HSMCI_WPSR

Access: read-only

Address: 0x400000E8

31	30	29	28	27	26	25	24
-	-	-	-	-	-	-	-
23	22	21	20	19	18	17	16
WP_VSRC
15	14	13	12	11	10	9	8
WP_VSRC
7	6	5	4	3	2	1	0
-	-	-	-	WP_VS

• WP_VS: Write Protection Violation Status

  Value	Name	Description
  0x0	NONE	No Write Protection Violation occurred since the last read of this register (WP_SR)
  0x1	WRITE	Write Protection detected unauthorized attempt to write a control register had occurred (since the last read.)
  0x2	RESET	Software reset had been performed while Write Protection was enabled (since the last read).
  0x3	BOTH	Both Write Protection violation and software reset with Write Protection enabled have occurred since the last read.

• WP_VSRC: Write Protection Violation SouRCe

-

HSMCI FIFO Memory Aperture0

Name: HSMCI_FIFO[0:255]

Access: read-write

Address: 0x40000200

31	30	29	28	27	26	25	24
DATA
23	22	21	20	19	18	17	16
DATA
15	14	13	12	11	10	9	8
DATA
7	6	5	4	3	2	1	0
DATA

• DATA: Data to Read or Data to Write

-