Broadcom BCM7405 Configuration guide

2/24/2008 9T6WP
PRELIMINARY HARDWARE DATA MODULE
BCM7405
7405-1HDM00-R
5300 California Avenue • Irvine, CA 92617 • Phone: [phone] • Fax: [phone]/07
General Information

2/24/2008 9T6WP
Broadcom Corporation
5300 California Avenue
Irvine, CA 92617
© 2007 by Broadcom Corporation
All rights reserved
Printed in the U.S.A.
Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among the trademarks of
Broadcom Corporation and/or its affiliates in the United States, certain other countries and/or the EU. Any other trademarks
or trade names mentioned are the property of their respective owners.
This hardware data module (including, without limitation, the Broadcom component(s) identified herein) is not designed,
intended, or certified for use in any military, nuclear, medical, mass transportation, aviation, navigations, pollution control,
hazardous substances management, or other high risk application. BROADCOM PROVIDES THIS HARDWARE DATA
MODULE "AS-IS", WITHOUT WARRANTY OF ANY KIND. BROADCOM DISCLAIMS ALL WARRANTIES, EXPRESSED
AND IMPLIED, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
REVISION HISTORY
Revision # Date Change Description
7405-1HDM00-R 06/29/07 Preliminary release.

2/24/2008 9T6WP
Preliminary Hardware Data Module BCM7405
06/29/07
Broadcom Corporation
Document 7405-1HDM00-R Page iii
TABLE OF CONTENTS
Document Overview.................................................................................................................................. 1-1
Overview .............................................................................................................................................. 1-2
Functional Description ............................................................................................................................. 1-3
Top-Level Overview ............................................................................................................................. 1-4
Features........................................................................................................................................ 1-5
Video Data Flow................................................................................................................................... 1-8
Overview ....................................................................................................................................... 1-8
Compressed Video Input .............................................................................................................. 1-8
Personal Video Recording ............................................................................................................ 1-9
Digital Video Decompression........................................................................................................ 1-9
ITU-R 656 Input ............................................................................................................................ 1-9
Video Processing.......................................................................................................................... 1-9
Video Encoder ............................................................................................................................ 1-10
Video DACs ................................................................................................................................ 1-10
Data Transport Processor .................................................................................................................. 1-11
Overview ..................................................................................................................................... 1-11
Features...................................................................................................................................... 1-11
Functional Overview ................................................................................................................... 1-13
Data Transport I/O Connections ................................................................................................. 1-16
Data Transport Input Bands ................................................................................................ 1-16
Throughput Data Rate ........................................................................................................ 1-16
PID Parser .......................................................................................................................... 1-17
Packet Input Buffer ............................................................................................................. 1-17
PID/Packet Substitution and Generation Module ................................................................ 1-18
Multistream CableCard Interface ........................................................................................ 1-19
Condition Access Descramblers (The Downstream Descramblers) ................................... 1-20
NDS ICAM Module .............................................................................................................. 1-20
Copy Protection .................................................................................................................. 1-20
PES Parser ......................................................................................................................... 1-21
PSI Section Filter and Processor ........................................................................................ 1-21
Memory Buffer Manager ..................................................................................................... 1-22
Interrupt Controller .............................................................................................................. 1-22
Record Audio Video Engine (RAVE) ................................................................................... 1-22

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Audio/Video Interface ..........................................................................................................1-25
Playback ..............................................................................................................................1-25
Playback Sync Extractor .....................................................................................................1-26
Remux Module ....................................................................................................................1-26
PCR Recovery Block ...........................................................................................................1-27
Serial STC Broadcast Module .............................................................................................1-28
Broadcom Security Processor ............................................................................................................1-28
Advanced Video Decoder...................................................................................................................1-29
VC-1 ....................................................................................................................................1-30
MPEG-2 ...............................................................................................................................1-30
MPEG-4 Part2 .....................................................................................................................1-30
DivX .....................................................................................................................................1-30
XVID ....................................................................................................................................1-31
MPEG-1/H.261/H.263 .........................................................................................................1-31
Features ......................................................................................................................................1-31
Supported Picture Sizes..............................................................................................................1-31
Output Data Format.....................................................................................................................1-31
AVD Block Diagram and Data Flow Description .........................................................................1-32
Advanced Audio Module.....................................................................................................................1-33
Features ......................................................................................................................................1-34
Overview of Audio Module ..........................................................................................................1-35
Video and Graphics Display ...............................................................................................................1-36
Overview .....................................................................................................................................1-36
Features ..............................................................................................................................1-36
Video Subsystem ................................................................................................................1-36
Graphics Subsystem ...........................................................................................................1-38
Top Level Partitioning..................................................................................................................1-38
Video (Broadcom Video Network) Subblock Description ............................................................1-39
AVC/MPEG-2/VC-1 Feeder .................................................................................................1-40
Video Feeder .......................................................................................................................1-40
Graphics Feeder ..................................................................................................................1-40
Video Scaler ........................................................................................................................1-41
Motion Adaptive De-interlacer .............................................................................................1-41
Film Grain Technology ........................................................................................................1-42
Compositor ..........................................................................................................................1-42

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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

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Buses ..................................................................................................................................1-62
DDR-SDRAM Memory Image Organization ........................................................................1-62
Digital Video Compression Standards .................................................................................1-62
Memory Accesses for Video Decompression ......................................................................1-62
DDR Clock Generation................................................................................................................1-62
MIPS4380 Processor Core.................................................................................................................1-63
Overview .....................................................................................................................................1-63
Architecture .................................................................................................................................1-63
Micro-Architecture .......................................................................................................................1-64
EJTAG Debug Support................................................................................................................1-64
Major Functional Blocks ..............................................................................................................1-65
Execution Unit .....................................................................................................................1-65
Multiply Divide Unit ..............................................................................................................1-66
Floating-Point Unit ...............................................................................................................1-66
eDSP Extended Instructions .......................................................................................................1-67
MIPS16e Application-Specific Extension ....................................................................................1-67
Memory Management Unit with TLB ...........................................................................................1-67
System Control Coprocessor (CP0) ............................................................................................1-68
Instruction Cache ........................................................................................................................1-68
Data Cache .................................................................................................................................1-68
Level-Two Cache ........................................................................................................................1-69
Readahead Cache ......................................................................................................................1-69
Little and Big Endianness of Byte Ordering.................................................................................1-69
Debugging Support Unit ..............................................................................................................1-70
Peripherals .........................................................................................................................................1-71
Overview .....................................................................................................................................1-71
Peripheral Control Unit ................................................................................................................1-71
Keypad Controller........................................................................................................................1-71
LED Controller.............................................................................................................................1-71
IR Receiver Controller .................................................................................................................1-71
IR Blaster Controller ....................................................................................................................1-72
UHF Receiver..............................................................................................................................1-74
UART...........................................................................................................................................1-75
General Description .............................................................................................................1-75
Functional Description .........................................................................................................1-76

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Generic I/O Port Controller ......................................................................................................... 1-77
SPI Master .................................................................................................................................. 1-77
Programmable Queue ......................................................................................................... 1-78
Wraparound Transfer Mode ................................................................................................ 1-78
Programmable Transfer Length .......................................................................................... 1-78
Programmable Transfer Delay ............................................................................................ 1-78
Programmable Queue Pointer ............................................................................................ 1-78
BSC Master ................................................................................................................................ 1-78
BSC Master Interface Operation ......................................................................................... 1-79
BSC Slave .................................................................................................................................. 1-79
BSC Operation .................................................................................................................... 1-79
PWMs ......................................................................................................................................... 1-80
Timer/Counters ........................................................................................................................... 1-80
Smart Card Interfaces................................................................................................................. 1-80
Features .............................................................................................................................. 1-81
M-Card CPU Interface ................................................................................................................ 1-82
Introduction ......................................................................................................................... 1-82
Input and Output Processes ............................................................................................... 1-83
PCI and External Bus Interface ..................................................................................................1-84
Advanced Connectivity Interface ................................................................................................ 1-89
Ethernet .............................................................................................................................. 1-89
Serial ATA Controller .......................................................................................................... 1-89
USB ..................................................................................................................................... 1-90
Soft Modem ......................................................................................................................... 1-91
PCI ...................................................................................................................................... 1-91
JTAG Interface............................................................................................................................ 1-91
Testability........................................................................................................................................... 1-92
Overview ..................................................................................................................................... 1-92
Production Testing ...................................................................................................................... 1-92
Scan .................................................................................................................................... 1-92
Built-In Self-Test ................................................................................................................. 1-92
Functional Testing ...................................................................................................................... 1-92
Test Modes ......................................................................................................................... 1-92
Test Buses .......................................................................................................................... 1-92
On-Board Testing ....................................................................................................................... 1-92

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BCM7405 Preliminary Hardware Data Module
06/29/07
Broadcom Corporation
Page viii Document 7405-1HDM00-R
JTAG ...................................................................................................................................1-92
EJTAG .................................................................................................................................1-92
Power Features ..................................................................................................................................1-93
Power Modes for DDR DRAM Memory Controller ......................................................................1-93
Power-Up Sequence ...................................................................................................................1-94
Hardware Signal Descriptions................................................................................................................1-95
Pin Definition Notations ......................................................................................................................1-96
Pin Labels....................................................................................................................................1-96
Pin Type ......................................................................................................................................1-96
Power-On Strap Settings..................................................................................................................1-147
Timing and AC Characteristics ............................................................................................................1-149
Data Transport Input Timing.............................................................................................................1-150
MPOD Input Timing ..........................................................................................................................1-151
Data Transport Output Timing ..........................................................................................................1-152
RMX Serial Output Port Timing (Clock/Data/Sync Mode) .........................................................1-152
MPOD Output Timing .......................................................................................................................1-153
I2S Audio/Compressed I2S Output Timing.......................................................................................1-154
SPDIF Audio Output Timing .............................................................................................................1-155
DAC Audio Output Timing ................................................................................................................1-156
256Fs Audio Clock Output Timing....................................................................................................1-157
PCI Interface Timing.........................................................................................................................1-158
EBI Timing........................................................................................................................................1-159
Asynchronous Read Transfer....................................................................................................1-159
Asynchronous Write Transfer....................................................................................................1-160
Synchronous Read Transfer .....................................................................................................1-161
Synchronous Write Transfer......................................................................................................1-162
DDR Interface Timing .......................................................................................................................1-163
HDMI and DVO.................................................................................................................................1-165
ITU656 Output Timing ......................................................................................................................1-166
Timing For ITU656 Output at vo_656 Pins ...............................................................................1-166
Timing For Alternate 656 Output at vi0_656 Pins .....................................................................1-167
Serial Teletext Port Output Timing ............................................................................................1-167
Timing For Serial Teletext Output at rmx_data1 Pin .................................................................1-167
Crystal Requirements............................................................................................................................1-168
Crystal Requirements .......................................................................................................................1-169

2/24/2008 9T6WP
Preliminary Hardware Data Module BCM7405
06/29/07
Broadcom Corporation
Document 7405-1HDM00-R Page ix
3rd Overtone Crystal Oscillator.................................................................................................1-169
External Components ............................................................................................................... 1-170
SATA Crystal ............................................................................................................................ 1-170
Electrical Characteristics ..................................................................................................................... 1-171
Absolute Maximum Ratings ............................................................................................................. 1-172
Recommended Operating Conditions.............................................................................................. 1-172
Thermal Data ......................................................................................................................................... 1-173
Thermal Data ................................................................................................................................... 1-174
Mechanical Characteristics .................................................................................................................. 1-175
Mechanical Drawings....................................................................................................................... 1-176
Ordering Information ............................................................................................................................ 1-179
Ordering Information ........................................................................................................................ 1-180

2/24/2008 9T6WP
BCM7405 Preliminary Hardware Data Module
06/29/07
Broadcom Corporation
Page x Document 7405-1HDM00-R