Datasheet

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.
• 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
76543210
VOP_TIME_INC