Datasheet
1176
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
46.7.17 Reference Picture Index 4 Base Address (MPEG-4/H.263 MVD Control)
Name: VDEC_PIDXBA4
Addresses: 0x00900048
Access: Read-write
• ANC: Anchor Picture Type
Previous anchor picture type:
0: intra
1: inter
• RCB: Rounding Control Bit
When low, 1/2 pixel motion compensation sum is rounded, otherwise clipped.
• ACC_FW: Forward Motion Vector
Forward motion vector Y resolution:
0: 1/2 accuracy
1: 1/4 accuracy
• BW_BN: Backward Bit Number
Bit amount for representing backward motion vector for both axes.
• FW_BN: Forward Bit Number
Bit amount for representing forward motion vector for both axes.
• SCANF: Alternate Scan Flag
31 30 29 28 27 26 25 24
––––––––
23 22 21 20 19 18 17 16
––––SCANF FW_BN
15 14 13 12 11 10 9 8
FW_BN–––– BW_BN
76543210
BW_BN––––ACC_FWRCBANC