2/24/2008 9T6WP
BCM7405
Preliminary Hardware Data Module
Functional Description
06/29/07
Bro a d c o m C o rp o r a ti o n
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
T
OP
L
EVEL
P
ARTITIONING
The graphics and video engine of the BCM7405 is comprised of two major sections—the Memory-to-Memory Compositor
and the BVN.
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