VS1011E Datasheet, PDF (35/49 Pages) List of Unclassifed Manufacturers – MPEG AUDIO CODEC

VLSI
Solution ^y
VS1011e
VS1011E
8. FUNCTIONAL DESCRIPTION
“bitrate”
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Layer I
ID=3 ID=0,1,2
kbit/s
forbidden forbidden
448
256
416
224
384
192
352
176
320
160
288
144
256
128
224
112
192
96
160
80
128
64
96
56
64
48
32
32
-
-
Layer II
ID=3 ID=0,1,2
kbit/s
forbidden forbidden
384
160
320
144
256
128
224
112
192
96
160
80
128
64
112
56
96
48
80
40
64
32
56
24
48
16
32
8
-
-
Layer III
ID=3 ID=0,1,2
kbit/s
forbidden forbidden
320
160
256
144
224
128
192
112
160
96
128
80
112
64
96
56
80
48
64
40
56
32
48
24
40
16
32
8
-
-
When decoding a WAV file, SPI HDAT0 and SPI HDAT1 read as 0x7761 and 0x7665, respectively.
8.6.10 SCI AIADDR (RW)
SCI AIADDR indicates the start address of the application code written earlier with SCI WRAMADDR
and SCI WRAM registers. If no application code is used, this register should not be initialized, or it
should be initialized to zero. For more details, see VS10XX Application Note: User Applications.
8.6.11 SCI VOL (RW)
SCI VOL is a volume control for the player hardware. For each channel, a value in the range of 0..254
may be defined to set its attenuation from the maximum volume level (in 0.5 dB steps). The left channel
value is then multiplied by 256 and the values are added. Thus, maximum volume is 0 and total silence
is 0xFEFE.
Example: for a volume of -2.0 dB for the left channel and -3.5 dB for the right channel: (4*256) + 7
= 0x407. Note, that at startup volume is set to full volume. Resetting the software does not reset the
volume setting.
Note: Setting SCI VOL to 0xFFFF will activate analog powerdown mode.
8.6.12 SCI AICTRL[x] (RW)
SCI AICTRL[x] registers ( x=[0 .. 3] ) can be used to access the user’s application program.
Version 1.04, 2007-10-08
35