CTRCARD Registers

CTRCARD Registers

Registers #

Old3DS	Name	Address	Width	Used by
Yes	CTRCARD_CNT	0x10004000	4	Process9
Yes	CTRCARD_BLKCNT	0x10004004	4	Process9
Yes	CTRCARD_SECCNT	0x10004008	4	Process9
Yes	CTRCARD_SECSEED	0x10004010	4	Process9
Yes	CTRCARD_CMD	0x10004020	16	Process9
Yes	CTRCARD_FIFO	0x10004030	4	Process9

CTRCARD_CNT #

Bit	Description
3-0	?
4	CRC status (1=Error, 0=OK)?
15-5	?
19-16	Transfer size (0=0 bytes, 1=4 bytes, 2=0x10 bytes, 0x40, 0x200, 0x400, 0x800, 0x1000, 8=0x4000 bytes)
23-20	?
26-24	Clock delay (0..5)
27	Data ready (1=Ready, 0=Busy)
28	Reset (1=High, 0=Low)
29	Transfer mode (1=Write, 0=Read)
30	Interrupt enable (1=Enable, 0=Disable)
31	Start (1=Busy, 0=Idle)

Remarks #

Once reset is set high, it cannot be changed until controller is reset.

CTRCARD_BLKCNT #

Bit	Description
15-0	Total data blocks to read from FIFO - 1
31-16	Total data blocks to write to FIFO - 1

CTRCARD_SECCNT #

Bit	Description
2	Latch key index
9-8	Key index
15	Latch seed

CTRCARD_CMD #

Specifies the 16-byte command to send. The command is split into 32-bit words, and stored as least significant word first, with each word itself in big-endian format.