uda1335h NXP Semiconductors, uda1335h Datasheet - Page 25

• Manufacturer Part Number: uda1335h
• Description: Universal Serial Bus Usb Audio Playback Recording Peripheral Aprp
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1998 Aug 28
Universal Serial Bus (USB) Audio
Playback Recording Peripheral (APRP)
BYTE
(HEX)
10
11
12
13
14
15
C
D
B
E
F
I/O selection register
I
selection register
2
S-bus and topology
AFFECTS
clipping
expander
selector output (GP2)
mute/standby expander
mute/standby USB APRP
output pin 3
output pin 2
output pin 1
output pin function 1
output pin function 2
output pin function 3
output I
4-pin or 6-pin I
HID usage
reserved
topology selection
rise time power amplifier, steps
of 20 ms
time between mute and play,
steps of 1 s
time between mute and
standby, steps of 5 s
selector preferred state (only
applicable in input topology 2)
DBB value steps of 1 dB with
maximum 255 dB
start-up volume value in dB
2
S-bus
COMMENTS
2
S-bus
25
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
0 = clipping prevention OFF
1 = clipping prevention ON
0 = no I
1 = I
0 = selector state normal
1 = selector state inverted
0 = mute
1 = standby
0 = mute
1 = standby
polarity output pins
0 = inverted logic
1 = normal logic
functions are available if
declared in ADC:
0 = mute LED; 1 = DBB LED
0 = no I
1 = I
only if I
0 = 4-pin I
1 = 6-pin I
0 = HID not included
1 = HID included
X
low nibble:
1 = input topology 1
2 = input topology 2
3 = input topology 3
4 = input topology 4
all other values =
input topology 1
0 = terminal Input 1 or terminal
input 2
0 = no DBB active
1 to FF = DBB active
volume = register value
2
2
S-bus used
C-bus expander used
2
2
2
Preliminary specification
S-bus is used:
C-bus expander used
S-bus used
2
2
S-bus
S-bus
VALUE
UDA1335H