Broadcom BCM7405 - Page 5

2/24/2008 9T6WP
Preliminary Hardware Data Module BCM7405
06/29/07
Broadcom Corporation
Document 7405-1HDM00-R Page v
Capture Block ..................................................................................................................... 1-42
Digital Noise Reduction ............................................................................................................. 1-43
DNR Operations .................................................................................................................. 1-43
Digital Contour Removal............................................................................................................. 1-43
Graphics Subblock Description...................................................................................................1-44
Scaler Overview .................................................................................................................. 1-45
Feeder Architecture (Source and Destination) .................................................................... 1-46
Color Keying and Color Matrix Architecture ........................................................................ 1-47
Compositor Architecture ..................................................................................................... 1-48
ROP Architecture ................................................................................................................ 1-49
Capture Architecture ........................................................................................................... 1-49
Digital Video Decoder (ITU-R-656) ............................................................................................. 1-50
VBI Decoding ...................................................................................................................... 1-50
Analog Video Encoder ................................................................................................................ 1-50
VBI Encoding ...................................................................................................................... 1-52
Video DACs ................................................................................................................................ 1-53
Digital Video Encoder ................................................................................................................. 1-53
Safe Mode ........................................................................................................................... 1-53
Supported Modes ................................................................................................................ 1-54
Supported PC Scan Rates .................................................................................................. 1-55
RF Modulator ..................................................................................................................................... 1-56
Overview ..................................................................................................................................... 1-56
Features...................................................................................................................................... 1-56
Typical Usage Modes ................................................................................................................. 1-57
Supported Television Standards ......................................................................................... 1-57
Audio Transmission Modes ................................................................................................. 1-58
Baseband BTSC Composite Output Mode ......................................................................... 1-58
Sound IF Output Mode ........................................................................................................ 1-58
Unsupported Audio Mode ................................................................................................... 1-58
Memory Controller ............................................................................................................................. 1-59
Overview ..................................................................................................................................... 1-59
DRAM Physical Layer Controller ................................................................................................ 1-61
Memory Configurations Supported ..................................................................................... 1-61
DRAM Transaction Layer Controller ........................................................................................... 1-62
Arbitration ............................................................................................................................ 1-62