Game Card

Game card is a standard MMC card. Pinout is different, however it complies with MMC card.

Card initialization

Card initialization consists of two steps:

• Standard MMC initialization.
• Custom CMD56 initialization.

CMD56 is a command that is used to transfer vendor specific data from host to card and back to host.

Second step is crucial and is required to be done before host tries to read any data from the card for example with CMD17.

Standard MMC initialization

This step is performed by SceSdif.

Part1: Card identification (SD, MMC, SDIO)

• 40 00 00 00 00 95 - CMD0 - GO_IDLE_STATE
• 48 00 00 01 AA 87 - CMD8 - SEND_IF_COND
• 45 00 00 00 00 5B - CMD5 - IO_SEND_OP_COND
• 77 00 00 00 00 65 - CMD55 - APP_CMD

Part2: Card initialization

• 40 00 00 00 00 95 - CMD0 - GO_IDLE_STATE
• 41 40 FF 80 00 0B - CMD1 - SEND_OP_COND
• 42 00 00 00 00 4D - CMD2 - ALL_SEND_CID
• 43 00 01 00 00 7F - CMD3 - SET_RELATIVE_ADDR
• 49 00 01 00 00 F1 - CMD9 - SEND_CSD
• 47 00 01 00 00 DD - CMD7 - SELECT_CARD
• 46 03 AF 01 00 43 - CMD6 - SWITCH (ERASE_GROUP_DEF)
• 48 00 00 00 00 C3 - CMD8 - SEND_EXT_CSD
• 50 00 00 02 00 15 - CMD16 - SET_BLOCKLEN
• 46 03 B9 01 00 2F - CMD6 - SWITCH (HS_TIMING)
• 46 03 B7 01 00 2D - CMD6 - SWITCH (BUS_WIDTH 4)

Custom CMD56 initialization

This step is performed by SceSblGcAuthMgr.

SceSblGcAuthMgr uses SceSblSsSmComm API to send F00D Commands to call Kirk services 1B-20. Game card can be accessed with device index 1

Initialization consists of 20 packets total. There are 10 request and 10 response packets. Each packet is sent or received with CMD56.

packet 1

Offset	Size	Value	Description
0x00	0x20	-	key0
0x20	0x04	0x31	response code
0x24	0x04	0x03	additional data size
0x28	0x04	0x13	response size
0x2C	0x01	0xC4	command ?
0x2D	0x01	0x00	unknown
0x2E	0x01	0x03	additional data size

packet 2

Offset	Size	Value	Description

packet 3

Offset	Size	Value	Description
0x00	0x20	-	key0
0x20	0x04	0x23	response code
0x24	0x04	0x03	additional data size
0x28	0x04	0x05	response size
0x2C	0x01	0xC2	command ?
0x2D	0x01	0x00	unknown
0x2E	0x01	0x03	additional data size

packet 4

Offset	Size	Value	Description

packet 5

Offset	Size	Value	Description
0x00	0x20	-	key0
0x20	0x04	0x02	response code
0x24	0x04	0x03	additional data size
0x28	0x04	0x2B	response size
0x2C	0x01	0xA1	command ?
0x2D	0x01	0x00	unknown
0x2E	0x01	0x03	additional data size

packet 6

Offset	Size	Value	Description

packet 7

Offset	Size	Value	Description
0x00	0x20	-	key0
0x20	0x04	0x03	response code
0x24	0x04	0x15	additional data size
0x28	0x04	0x23	response size
0x2C	0x01	0xA2	command ?
0x2D	0x01	0x00	unknown
0x2E	0x01	0x15	additional data size
0x2F	0x02	0x01	gc parameter (packet 6)
0x31	0x10	-	generated chunk (random?)

packet 8

Offset	Size	Value	Description

packet 9

Offset	Size	Value	Description
0x00	0x20	-	key0
0x20	0x04	0x05	response code
0x24	0x04	0x33	additional data size
0x28	0x04	0x03	response size
0x2C	0x01	-	command ? (generated with Kirk 1C)
0x2D	0x01	-	unknown (generated with Kirk 1C)
0x2E	0x01	-	additional data size (generated with Kirk 1C)
0x2F	0x01	-	data (generated with Kirk 1C)

packet 10

Offset	Size	Value	Description

packet 11

Offset	Size	Value	Description

packet 12

Offset	Size	Value	Description

packet 13

Offset	Size	Value	Description

packet 14

Offset	Size	Value	Description

packet 15

Offset	Size	Value	Description

packet 16

Offset	Size	Value	Description

packet 17

Offset	Size	Value	Description

packet 18

Offset	Size	Value	Description

packet 19

Offset	Size	Value	Description

packet 20

Offset	Size	Value	Description