
Koninklijke Philips Electronics N.V. Copyright 2001. All rights reserved.
9397 750 08865
50 of 84
Rev. 02 — 8 October 2001
Product data
PNX8510/11
Philips Semiconductors
Analog Companion Chip
0
R/W
0
mtm
Mute
0 = Mute off
1 = Mute on
Offset 00FC
INTERPLATOR_REG1
7
R/W
0
sdet_on
Silence detect enable
0 = Silence detection circuit disabled
1 = Silence detection circuit enabled
6
R/W
0
silence_override
Silence override
0 = No override. Audio DAC silence switch setting depends on
the silence detector circuit and or on the master_mute status.
1 = Override. The Audio DAC silence switch is activated.
5
R/W
0
filter_comp
Switch between ‘flat’ (for the Digital Amplifier) or ‘compensate’ cor-
rection filter curve (for the Audio DAC).
0 = Curve for Audio DAC
1 = Curve for Digital Power Amp
4
R/W
0
da_pol_inv
Select the polarity of the DATA to the Audio DAC = a means to con-
trol the output signal polarity. The DC and AC dither which must be
added to the noise-shaper input will NOT be inverted when invert-
ing the audio data.
0 = Non inverting data out
1 = Inverting data out
3:2
R/W
00
sd_value
The number of ‘zero’ samples counted before the silence detector
signals whether there has been digital silence:
00 = 3200 samples
01 = 4800 samples
10 = 9600 samples
11 = 19200 samples
1-
Unused
0-
Unused
Offset 00FD
INTERPOLATOR_REG2
7:6
-
Unused
5:4
-
Unused
3
R/W
0
quickmute
This is an overriding quickmute on the master channel which mutes
the interpolator output signal in 32 samples, using the cosine roll-
off coefficients.
0 = Quick mute is off
1 = Quick mute on
2
R/W
0
mutemode
Mute function via micro controller interface:
0 = Soft mute mode
1 = Quick mute mode
1-
Unused
0-
Unused
Offset 00FE
Audio DAC power on register
7:1
-
Unused
0
R/W
1
pon
1 = Power on for audio DAC
0 = Power off for audio DAC
Bits
Read/
Write
Reset
Value
Name
(Field or Function)
Description