SNDEX - Revision history

Neimod at 07:39, 3 April 2010

2010-04-03T05:39:22Z

← Older revision		Revision as of 09:39, 3 April 2010
Line 25:		Line 25:
	\|-		\|-
	\| 13		\| 13
	\| I2S frequency		\| I2S frequency, 0=32.73 kHz, 1=47.61 kHz
	\|-		\|-
	\| 14		\| 14

Neimod: NITRO/DSP rations were in wrong order. Fixed

2010-04-02T01:28:51Z

NITRO/DSP rations were in wrong order. Fixed

← Older revision		Revision as of 05:28, 2 April 2010
Line 40:		Line 40:
	\|-		\|-
	\| 0		\| 0
	\| ~~NITRO~~ sound 8/8, ~~DSP~~ 0/8 (=~~NITRO~~ sound only)		\| DSP sound 8/8, NITRO sound 0/8 (=DSP sound only)
	\|-		\|-
	\| 1		\| 1
	\| ~~NITRO~~ sound 7/8, ~~DSP~~ 1/8		\| DSP sound 7/8, NITRO sound 1/8
	\|-		\|-
	\| 2		\| 2
	\| ~~NITRO~~ sound 6/8, ~~DSP~~ 2/8		\| DSP sound 6/8, NITRO sound 2/8
	\|-		\|-
	\| 3		\| 3
	\| ~~NITRO~~ sound 5/8, ~~DSP~~ 3/8		\| DSP sound 5/8, NITRO sound 3/8
	\|-		\|-
	\| 4		\| 4
	\| ~~NITRO~~ sound 4/8, ~~DSP~~ 4/8		\| DSP sound 4/8, NITRO sound 4/8
	\|-		\|-
	\| 5		\| 5
	\| ~~NITRO~~ sound 3/8, ~~DSP~~ 5/8		\| DSP sound 3/8, NITRO sound 5/8
	\|-		\|-
	\| 6		\| 6
	\| ~~NITRO~~ sound 2/8, ~~DSP~~ 6/8		\| DSP sound 2/8, NITRO sound 6/8
	\|-		\|-
	\| 7		\| 7
	\| ~~NITRO~~ sound 1/8, ~~DSP~~ 7/8		\| DSP sound 1/8, NITRO sound 7/8
	\|-		\|-
	\| 8		\| 8
	\| ~~NITRO~~ sound 0/8, ~~DSP~~ 8/8 (=~~DSP~~ sound only)		\| DSP sound 0/8, NITRO sound 8/8 (=NITRO sound only)
	\|}		\|}

Neimod: New page: The DSi has extended the sound memory mapped I/O interface. === ARM7 IO REGISTERS === {| class="wikitable" border="1" |- ! ADDRESS ! WIDTH (bytes) ! NAME |- | 0x04004700 | 2 | REG_...

2010-03-28T17:46:25Z

New page: The DSi has extended the sound memory mapped I/O interface. === ARM7 IO REGISTERS === {| class="wikitable" border="1" |- ! ADDRESS ! WIDTH (bytes) ! NAME |- | 0x04004700 | 2 | REG_...

New page

The DSi has extended the sound memory mapped I/O interface.

=== ARM7 IO REGISTERS ===
{| class="wikitable" border="1"
|-
! ADDRESS
! WIDTH (bytes)
! NAME
|-
| 0x04004700
| 2
| REG_SNDEXCNT
|}

{| class="wikitable" border="1"
|+ '''REG_SNDEXCNT'''
|-
! BIT
! DESCRIPTION
|-
| 3-0
| NITRO/DSP ratio, valid range is 0 to 8.
|-
| 13
| I2S frequency
|-
| 14
| Mute status
|}

=== NITRO/DSP ratio ===
The DSP can generate sound output aswell, alongside the old NITRO sound mixer. The following settings configure the ratio between DSP and NITRO mixer output:

{| class="wikitable" border="1"
|-
! Setting
! Description
|-
| 0
| NITRO sound 8/8, DSP 0/8 (=NITRO sound only)
|-
| 1
| NITRO sound 7/8, DSP 1/8
|-
| 2
| NITRO sound 6/8, DSP 2/8
|-
| 3
| NITRO sound 5/8, DSP 3/8
|-
| 4
| NITRO sound 4/8, DSP 4/8
|-
| 5
| NITRO sound 3/8, DSP 5/8
|-
| 6
| NITRO sound 2/8, DSP 6/8
|-
| 7
| NITRO sound 1/8, DSP 7/8
|-
| 8
| NITRO sound 0/8, DSP 8/8 (=DSP sound only)
|}