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edits
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Line 226: − + − CFG9_SDSLOTCTL controls power and SD card detect?+ Line 223:
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xdma config
|-
|-
| style="background: green" | Yes
| style="background: green" | Yes
| ?
| [[#CFG9_XDMA_CNT|CFG9_XDMA_CNT]]
| 0x10000008
| 0x10000008
| 1
| 1
|-
|-
| style="background: green" | Yes
| style="background: green" | Yes
| [[#CFG9_SDSLOTCTL|CFG9_SDSLOTCTL]]
| [[#CFG9_SDMMCCTL|CFG9_SDMMCCTL]]
| 0x10000020
| 0x10000020
| 2
| 2
|}
|}
== 0x10000008 ==
== CFG9_XDMA_CNT ==
Write 1 to enable XDMA for the device, 0 to disable. Always enabled for CTRCARD (ids 0 and 1), NTRCARD (id 8), and SHA (id 6 for infifo and 7 for outfifo).
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! Bit
! Bit
! Used by
! Used by
|-
|-
| 1-0
| 0
| ?
| SDIO controller 1 (eMMC and usually SD card; XDMA device ID: 2)
|
|-
| 1
| SDIO controller 3 (SD card if configured so; ID: 3)
|
|
|-
|-
| 3-2
| 2
| AES related? Value 3 written after write to AES_CTL.
| AES Input FIFO (ID: 4)
| Boot9, Process9, TwlProcess9
|-
| 3
| AES Output FIFO (ID: 5)
| Boot9, Process9, TwlProcess9
| Boot9, Process9, TwlProcess9
|-
|-
|-
|-
| 8
| 8
| Enable gamecard eject IRQ, maybe?
| 1 = Switch to [[SPICARD_Registers|SPICARD]] interface (savegames).
| Process9
| Process9
|}
|}
|}
|}
== CFG9_SDSLOTCTL ==
== CFG9_SDMMCCTL ==
This register controls power of multiple ports/controllers and allows to map controller 3 to ARM9 or ARM11. The SD card can be accessed on ARM11 by setting bit 8 and clearing bit 9.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! Used by
! Used by
|-
|-
| 0-3
| 0
| Bit 0 powers on the SD card slot when unset. Bit 2 set = the 3DS hangs somewhere after successful SD init. Remaining unknown.
| Controller 1/3 port 0 power (SD card) (1=off)
| Process9
|-
| 1
| Controller 1 port 1 power (eMMC) (1=off)
| Process9
|-
| 2
| Controller 2 port 0 power (WiFi SDIO) (1=off)
| Process9
| Process9
|-
| 3
| Controller 3 port 1 power? Set at cold boot.
| -
|-
| 4-5
| Unused.
| -
|-
| 6
| Wifi port related? Pull up? Set at cold boot.
| -
|-
|-
| 8
| 8
| ? This bit seems to do nothing.
| Controller 3 mapping (0=ARM9 0x10007000, 1=ARM11 0x10100000)
| Process9
| Process9
|-
|-
| 9
| 9
| If not set force pulls all SD card lines high.
| SD card controller select (0=0x10007000/0x10100000, 1=0x10006000)
| Process9
| Process9
|-
| 10-15
| Unused.
| -
|}
|}