PRELIMINARY DATA SHEET
MAS 3507D
3.7.1.2. MPEG Status 1
Address
Offset
R/W
Name
Function
MPEG header / status information
D0:$301
1
r
MPEGStatus 1
The MPEG Status 1 contains the bits 15...11 of the MPEG header and some status bits. It will be set each frame,
directly after the header has been decoded from the bit stream.
Table 3–11: MPEG Status 1
Bits
Name/Value
%xxxx.x
Comment
19, 15
14, 13
don’t care
MPEG ID
Bits 11, 12 of the MPEG-header
%00
%01
%10
%11
MPEG 2.5
reserved
MPEG 2
MPEG 1
12, 11
Layer
Bits 13, 14 of the MPEG-header
%00
%01
%10
%11
reserved
Layer 3
Layer 2
Layer 1 (Not supported)
10
9...2
1
%1
not protected by CRC
private bits
%1
%1
CRC Error
0
invalid frame
Micronas
31
MICRONAS [ MICRONAS ]
