Philips Semiconductors
Preliminary specification
Economy audio CODEC for MiniDisc (MD)
home stereo and portable applications
UDA1341TS
7.21.2 DATA0 DIRECT CONTROL
Table 17 Data transfer of type ‘DATA0’
BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
REGISTER SELECTED
0
0
0
1
VC5 VC4 VC3 VC2 VC1 VC0 VC = volume control (6 bits)
BB3 BB2 BB1 BB0 TR1 TR0 BB = bass boost (4 bits)
TR = treble (2 bits)
1
0
PP
DE1 DE0
MT
M1
M0 PP = peak detection position
DE = de-emphasis (2 bits)
MT = mute
M = mode switch (2 bits)
1
1
1
1
0
1
0
0
EA2 EA1 EA0 EA = extended address (3 bits)
ED4 ED3 ED2 ED1 ED0 ED = extended data (5 bits)
7.21.2.1 Volume control
7.21.2.2 Bass boost
A 6-bit value to program the left and right channel volume
attenuation. The range is from 0 to −∞ dB in steps of 1 dB.
The default setting is given in Table 5.
A 4-bit value to program the bass boost settings. The used
set depends on the mode bits. The default setting is given
in Table 5.
Table 18 Volume settings
Table 19 Bass boost settings
VOLUME
VC5 VC4 VC3 VC2 VC1 VC0
(dB)
BASS BOOST
BB3 BB2 BB1 BB0
FLAT
(dB)
MIN.
(dB)
MAX.
(dB)
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
0
0
1
1
:
0
1
0
1
:
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
−1
−2
:
2
2
4
4
6
6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
0
0
1
1
1
0
1
0
1
−58
−59
−60
−∞
−∞
8
8
10
12
14
16
18
18
18
18
18
18
10
12
14
16
18
20
22
24
24
24
1998 Dec 18
16
NXP [ NXP ]
