Broadcom BCM7405 - Graphics Subsystem; Top Level Partitioning; Figure 1-7: Video and Graphics Block Diagram

2/24/2008 9T6WP
BCM7405 Preliminary Hardware Data Module
Functional Description 06/29/07
Broadcom Corporation
Page 1-38 Video and Graphics Display Document 7405-1HDM00-R
Graphics Subsystem
The graphics subsystem includes a 2D Memory-to-Memory Compositor with the following features:
• Scaling
• BLT functions
• ROP operations
TOP LEVEL PARTITIONING
The graphics and video engine of the BCM7405 is comprised of two major sections—the Memory-to-Memory Compositor
and the BVN. Figure 1-7 illustrates these subblocks in the BCM7405.
Figure 1-7: Video and Graphics Block Diagram
32-bit Internal Register Bus
256-bit Internal Memory Bus
2D BLT
Engine
BVN
YUV 4:2:0 AVC/MPEG-2
Video
ITU-R-656 Video
YUV 4:2:2 Video
Analog Video Output
DVI Video
Graphics Data
ITU-R-656