MAS 35x9F
DATA SHEET
Table 3–11: D0 status memory cells, continued
Memory
Address
Function
Name
D0:FD2
MPEG Header Information, continued
MPEGStatus2
(continued)
bit[11:10]
Sampling frequencies in Hz
MPEG1
MPEG2
MPEG2.5
00
01
10
11
44100
48000
32000
reserved
22050
24000
16000
reserved
11025
12000
8000
reserved
bit[9]
Padding Bit
reserved
bit[8]
bit[7:6]
Mode
00
stereo
01
10
joint_stereo (intensity stereo / m/s stereo)
dual channel
11
single channel
bit[5:4]
Mode extension (applies to joint stereo only)
intensity stereo
m/s stereo
00
01
10
11
off
on
off
on
off
off
on
on
bit[3]
Copyright Protect Bit
0/1 not copyright protected/copyright protected
bit[2]
Copy/Original Bit
0/1
bitstream is a copy/bitstream is an original
bit[1:0]
Emphasis, indicates the type of emphasis
00
01
10
11
none
50/15 µs
reserved
CCITT J.17
This memory cell contains the 16 LSBs of the MPEG header. It will be set
directly after synchronizing to the bit stream.
Note that for AAC four bits are needed to define the sampling frequency while
for Layer2/Layer3 two bits are sufficient. This leads to an inconsistency in the
format of bits 13...10.
D0:FD3
D0:FD4
MPEG CRC Error Counter
CRCErrorCount
The counter will be increased by each CRC error detected in the MPEG bis-
stream. It will not be reset when losing the synchronization.
Number of Bits in Ancillary Data
NumberOfAncillary-
Bits
Number of valid ancillary bits in the current MPEG frame.
D0:FD5
...
D0:FF1
Ancillary Data
AncillaryData
(see Section 3.3.6. on page 43).
42
June 30, 2004; 6251-505-1DS
Micronas
MICRONAS [ MICRONAS ]
