telephone quality audio device
audioamd0 at mainbus0
audioamd0 at obio0
audioamd0 at sbus0
audio* at audioamd?
device uses the AMD AM79C30A Digital
Subscriber Controller chip to implement the audio device interface described
device is found onboard on several sun4c and sun4m models.
Simultaneous playback and capture are supported by the
has a maximum precision of 8 bits and is
monaural on both input and output.