MAS 3507D
PRELIMINARY DATA SHEET
3.7.1.3. MPEG Status 2
Address
Offset
R/W
Name
Function
D0:$302
2
r
MPEG Status 2
MPEG header
The MPEG Status 2 contains the 16 LSBs of the MPEG header. It will be set directly after synchronizing to the bit
stream.
Table 3–12: MPEG Status 2
Bits
Value/Name
Comment
19, 16
15...12
don’t care
Bit rate index
MPEG 1
(Layer 2)
in kbit/s
MPEG 1
(Layer 3)
in kbit/s
MPEG 2 in kbit/s
(Layer 2 & 3)
MPEG 2.5 in kbit/s
%0000
%0001
%0010
%0011
%0100
%0101
%0110
%0111
%1000
%1001
%1010
%1011
%1100
%1101
%1110
%1111
free
32
48
56
64
free
32
40
48
56
64
80
96
112
128
160
192
224
256
320
forbidden
free
8
16
24
32
40
48
56
64
80
96
112
128
160
192
224
256
320
384
forbidden
80
96
112
128
144
160
forbidden
11, 10
Sampling frequency
MPEG 1
MPEG 2
MPEG 2.5
%00
%01
%10
%11
44.1 kHz
48 kHz
32 kHz
22.05 kHz
24 kHz
16 kHz
11.025 kHz
12 kHz
8 kHz
reserved
reserved
reserved
9
Padding bit
Private bit
Mode
8
7, 6
%00
%01
%10
%11
stereo
joint_stereo (intensity stereo / ms_stereo)
dual channel
single_channel
5, 4
Mode extension
intensity stereo
ms_stereo
(if joint stereo only)
%00
%01
%10
%11
off
on
off
on
off
off
on
on
3
%0 / 1
copyright not protected / copyright protected
32
Micronas
MICRONAS [ MICRONAS ]
