20. Graphics Data Translation Accelerator (GDTA)
Rev.1.00 Jan. 10, 2008 Page 1024 of 1658
REJ09B0261-0100
No. Operation
Description
(3) Calculation
of
input position
(first row)
•
U/V input comparison address
Calculation formula: Past frame U point value (base point) + [(mbrow
×
8 +
(Recon_down/2>>1))
×
(width/2 + U padding)] + [mbcol
×
8 +
(Recon_right/2>>1)]
Past frame U pointer value (base point): MCPUPR setting address
mbrow: Calculated from MCCF setting
mbcol: Calculated from MCCF setting
Recon_down: Calculated from MCCF setting
Recon_right: Calculated from MCCF setting
width: Calculated from MCWR setting
U padding: Calculated from MCUVPR setting
Depending on the motion vector value, 8-dot data (8 bytes) or 9-dot data (9
bytes) is processed in succession.
Future frame U pointer address is calculated using a formula similar to that for
the past frame.
V pointer address is calculated using a formula similar to that for the U pointer
address.
*
Calculation result for Recon_down/2>>1 is shown below:
Recon_
down
-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6
Recon_
down/2>>1
-2 -1 -1 -1 -1 0 0 0 0 0 1 1 1
Calculation result for Recon_right/2>>1 is the same.
Содержание SH7781
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Страница 272: ...8 Caches Rev 1 00 Jan 10 2008 Page 242 of 1658 REJ09B0261 0100 ...
Страница 376: ...10 Interrupt Controller INTC Rev 1 00 Jan 10 2008 Page 346 of 1658 REJ09B0261 0100 ...
Страница 694: ...13 PCI Controller PCIC Rev 1 00 Jan 10 2008 Page 664 of 1658 REJ09B0261 0100 ...
Страница 762: ...14 Direct Memory Access Controller DMAC Rev 1 00 Jan 10 2008 Page 732 of 1658 REJ09B0261 0100 ...
Страница 788: ...15 Clock Pulse Generator CPG Rev 1 00 Jan 10 2008 Page 758 of 1658 REJ09B0261 0100 ...
Страница 828: ...17 Power Down Mode Rev 1 00 Jan 10 2008 Page 798 of 1658 REJ09B0261 0100 ...
Страница 846: ...18 Timer Unit TMU Rev 1 00 Jan 10 2008 Page 816 of 1658 REJ09B0261 0100 ...
Страница 1292: ...24 Multimedia Card Interface MMCIF Rev 1 00 Jan 10 2008 Page 1262 of 1658 REJ09B0261 0100 ...
Страница 1326: ...25 Audio Codec Interface HAC Rev 1 00 Jan 10 2008 Page 1296 of 1658 REJ09B0261 0100 ...
Страница 1482: ...28 General Purpose I O Ports GPIO Rev 1 00 Jan 10 2008 Page 1452 of 1658 REJ09B0261 0100 ...
Страница 1538: ...30 User Debugging Interface H UDI Rev 1 00 Jan 10 2008 Page 1508 of 1658 REJ09B0261 0100 ...
Страница 1688: ...Appendix Rev 1 00 Jan 10 2008 Page 1658 of 1658 REJ09B0261 0100 ...
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