Texas Instruments OMAP36 Series, Техническое справочное руководство

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IVA2.2 Subsystem Register Manual
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Bits Field Name Description Type Reset
31:13 RESERVED Write 0s for future compatibility RW 0x0
Read returns 0
12:0 BUFPTR Set a pointer inside Ring Buffer from which bitstream will be written. RW 0x0000
After the completion, the final pointer is shown. Must be even
number.
If IBUF0 is selected in
CAVLC_IBUFSEL , bit 12 select if IBUF0_A
(0) or IBUF0_B (1) is used.
Table 5-647. Register Call Summary for Register CAVLC_BUFPTR
IVA2.2 Subsystem Basic Programming Model
• Setting Up Registers for CAVLC Operation : [0] [1]
IVA2.2 Subsystem Register Manual
• iVLCD Register Mapping Summary : [2]
Table 5-648. CAVLC_BITPTR
Address Offset 0x0000 1154
Physical Address 0x0008 1154 Instance iVLCD
Description This register sets the number of valid MSBs in stream word registers.
Type RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RESERVED BITPTR
Bits Field Name Description Type Reset
31:5 RESERVED Write 0s for future compatibility RW 0x000
Read returns 0
4:0 BITPTR Set the number of valid MSBs in stream word registers. The RW 0x00
bitstream to be generated follows the valid bits. It shows the number
of valid MSBs in stream word registers after completion of the job.
Table 5-649. Register Call Summary for Register CAVLC_BITPTR
IVA2.2 Subsystem Basic Programming Model
• Setting Up Registers for CAVLC Operation : [0] [1]
IVA2.2 Subsystem Register Manual
• iVLCD Register Mapping Summary : [2]
Table 5-650. CAVLC_STRMWDU
Address Offset 0x0000 1158
Physical Address 0x0008 1158 Instance iVLCD
Description Upper half of 32-bit Stream Word Register
Type RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
RESERVED STRMWDU
Bits Field Name Description Type Reset
31:16 RESERVED Write 0s for future compatibility RW 0x0000
Read returns 0
15:0 STRMWDU Upper half of 32-bit Stream Word Register. Write bits from MSB so RW 0x0000
that bitstream to be generated follows them. After the completion of
the job, remaining bits, which is less than 32 and not written to
Image Buffer, is shown.
1038 IVA2.2 Subsystem SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated