Figure 78 - The Soundcnt_H Register - Nintendo GAME BOY ADVANCE Programming Manual

86
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Address Register
SOUND
082h
CNT_H
SOUNDCNT_H [d15],[d11] FIFO Clear and Sequencer Reset for Each Direct Sound
With direct sound the sequencer counts the number of times data is transmitted from FIFO to the mix-
ing circuit. A setting of 1 resets the FIFO and sequencer used for each direct sound. When this bit is
read, 0 is returned.
SOUNDCNT_H [d14],[d10] Timer Selection for Each Direct Sound
Specifies the timer used for each direct sound.
A setting of 0 selects timer 0, and 1 selects timer 1.
The same timer can be specified for both direct sounds (A and B).
AGB-06-0001-002-B13
Released: May 27, 2005
Game Boy Advance Programming Manual
Figure 78 - The SOUNDCNT_H Register
R Output of Direct Sound A
0: No output to R
1: Output to R
L Output of Direct Sound A
0: No output to L
1: Output to L
Timer Selection for Direct Sound A
0: Timer 0
1: Timer 1
Direct Sound FIFO A
Clear and Sequencer Reset
R Output of Direct Sound B
0: No output to R
1: Output to R
L Output of Direct Sound B
0: No output to L
1: Output to L
Timer Selection for Direct Sound B
0: Timer 0
1: Timer 1
Direct Sound FIFO B
Clear and Sequencer Reset
May 25, 2005
Attributes Initial Value
R/W 0000h
Output Ratio for Synthesis
of Sounds 1-4
00: 1/4 Output
01: 1/2 Output
10: Full Range
11: Prohibited Code
Output Ratio for Direct Sound A
0: 1/2 Full Range
1: Full Range
Output Ratio for Direct Sound B
0: 1/2 Full Range
1: Full Range
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