L64105 LSI Logic Corporation, L64105 Datasheet - Page 256

• Manufacturer Part Number: L64105
• Description: Mpeg-2 Audio/video Decoder
• Manufacturer: LSI Logic Corporation

8.2.8 Host Access of Q Table Entries
8-14
The host can read the intra and nonintra quant matrix values that are
stored in the Q table in the L64105 for the current decode process. The
quant matrix values may be the default values or they may have been
provided by the bitstream in the sequence header or in the quant matrix
extension.
The L64105 sets the Q Table Ready bit in Register 241
when the quant matrix values are all stored. The host sets the Intra Q
Table bit in the same register to select that table or clears it to select the
nonintra Q table. Then the host writes the address (0 to 63) of the
particular matrix entry into bits [7:2] of Register 241
reads the value at that entry from Register 242.
Video Decoder Module
(page
(page
4-56) and
4-56)