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= Registers =
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! NAME
! Old3DS
! PHYSICAL ADDRESS
! Name
! WIDTH
! Address
! Width
! Used by
|-
|-
| REG_CTRCARDCNT
| style="background: green" | Yes
| [[#CTRCARD_CNT|CTRCARD_CNT]]
| 0x10004000
| 0x10004000
| 4
| 4
|
|-
|-
| REG_CTRCARDBLKCNT
| style="background: green" | Yes
| [[#CTRCARD_BLKCNT|CTRCARD_BLKCNT]]
| 0x10004004
| 0x10004004
| 4
| 4
|
|-
|-
| REG_CTRCARDSECCNT
| style="background: green" | Yes
| [[#CTRCARD_SECCNT|CTRCARD_SECCNT]]
| 0x10004008
| 0x10004008
| 4
| 4
|
|-
|-
| REG_CTRCARDSECSEED
| style="background: green" | Yes
| CTRCARD_SECSEED
| 0x10004010
| 0x10004010
| 4
| 4
|
|-
|-
| REG_CTRCARDCMD
| style="background: green" | Yes
| [[#CTRCARD_CMD|CTRCARD_CMD]]
| 0x10004020
| 0x10004020
| 16
| 16
|
|-
|-
| REG_CTRCARDFIFO
| style="background: green" | Yes
| CTRCARD_FIFO
| 0x10004030
| 0x10004030
| 4
| 4
|
|}
|}
== REG_CTRCARDCNT ==
== CTRCARD_CNT ==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! BIT
! BIT
Once reset is set high, it cannot be changed until controller is reset.
Once reset is set high, it cannot be changed until controller is reset.
== REG_CTRCARDBLKCNT ==
== CTRCARD_BLKCNT ==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! BIT
! BIT
|}
|}
== REG_CTRCARDSECCNT ==
== CTRCARD_SECCNT ==
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! BIT
! BIT
|}
|}
== REG_CTRCARDCMD ==
== 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.
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.