Samsung S3C6400X User Manual page 698

S3C6400X RISC MICROPROCESSOR
CMD_DEC_SEQ_PRO_BUF (0x18C)
Bit
31:0 ProcessBufAddr
CMD_DEC_SEQ_TMP_BUF_1 (0x190)
Bit
31:0
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
21-72
Specifications and information herein are subject to change without notice.
Name Type
R/W
Name Type
TempBufAddr R/W
Function
Process buffer SDRAM byte address
Process buffer must be 256 byte-aligned.
Host must write this register before executing
DEC_SEQ_INIT command
Process buffer is used as PS data save buffer for AVC
and MV direct prediction buffer for VC1 and not used
for mpeg4.
Process buffer must be larger than MB number * 4 for
VC1. In case of AVC, process buffer size is not
estimated. Therefore, host process allocates some
amount temporarily.
Process buffer must be maintained before instance
closed. Therefore, host processor must allocate
process buffer as instance number.
Function
Temporary buffer SDRAM byte address
Temporary buffer must be 256 byte-aligned.
Host must writes this register before executing
DEC_SEQ_INIT command
Temporary buffer 1 is used as ACDC prediction buffer
for mpeg4 and Intra prediction Y buffer for AVC and
ACDC prediction buffer for VC1.
Temporary buffer 1 must be larger than picWidth*8 for
mpeg4, stride*picHeight/16 for AVC, picWidth*8 for
VC1.
MULTI-FORMAT VIDEO CODEC
Command
DEC_SEQ_I
NIT
Command
DEC_SEQ_I
NIT