Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Hoja De Datos
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AT91SAM9M10-G45-EK
1165
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
46.7.6
Decoder Control Register 2 (MPEG-4/H.263 Stream Decoding Table Selects)
Name:
VDEC_CTLR2
Address:
0x00900014
Access:
Read-write
• VOP_TIME_INC: VOP Time Increment
VOP time increment resolution.
• VLC_THR: VLC Threshold
Intra DC VLC threshold. This signal sets QP limits when DC components should be coded separately or like AC
components.
components.
• QPFILT_OFF: Chrominance Offset
Chroma Qp filter offset.
• QUANTYPE: Quantization Type
Type 1 quantization enable:
0: type 2 inverse Q method.
1: type 1 inverse Q method (Q-tables used).
• SYNCMAREN: Synchronization Markers enable
0: Synch markers are not used.
1: Synch markers are used.
• STREAM_START_BIT: Stream Start Bit
Exact bit of stream start word where decoding can be started.
31
30
29
28
27
26
25
24
STREAM_START_BIT
SYNCMAREN
QUANTYPE
23
22
21
20
19
18
17
16
QPFILT_OFF
VLC_THR
15
14
13
12
11
10
9
8
VOP_TIME_INC
7
6
5
4
3
2
1
0
VOP_TIME_INC