137
edits
Changes
no edit summary
|-
|-
| 0-5
| 0-5
| DSP volume (doesn't affect csnd)
| DSP volume (doesn't affect csnd).
|-
|-
| 6-11
| 6-11
| Another volume?
| GBA hardware master volume. And DSi too?
|-
|-
| 12
| 12
| ?
| Unknown purpose. Maybe direction for microphone input?
|-
|-
| 13-14
| 13
| ?
| I2S frequency. 0=32.728498046875 kHz, 1=47.605088068181818181818 kHz.
|-
| 14
| First MCLK output. 0=8.3784955 MHz, 1=16.756991 MHz.
|-
|-
| 15
| 15
|}
|}
This I2S line is used the DSP and microphone.
This I2S line is used the DSP, GBA hardware and microphone.
This is usually set to 0xC800 or 0xC820 when the DSP is active.
This is usually set to 0xC800 or 0xC820 when the DSP is active.
! Description
! Description
|-
|-
| 13-14
| 0-12
| ?
| Unused (0).
|-
| 13
| I2S frequency. 0=32.728498046875 kHz, 1=47.605088068181818181818 kHz.
|-
| 14
| Second MCLK output. Connected to the CODEC chip. 0=8.3784955 MHz, 1=16.756991 MHz.
|-
|-
| 15
| 15