Broadcom BCM7405 - Figure 1-1: Functional Block Diagram

2/24/2008 9T6WP
Preliminary Hardware Data Module BCM7405
06/29/07 Functional Description
Broadcom Corporation
Document 7405-1HDM00-R Top-Level Overview Page 1-7
• Two IR receivers
• IR blaster
• UHF remote control receiver
• BSC and SPI controllers
Figure 1-1 on page 1-7 shows the BCM7405 functional block diagram.
Figure 1-1: Functional Block Diagram
MPEG-2/DVB Transport with
Descrambling and Conditional
Access Support
Dual
PVR
Engine
w/Tr ick
Modes
Dual
Composite
NTSC/PAL
VEC with
six DACs
RF Mod.
400 MHz
MIPS32/16e
32KI and 64KD
MMU and FPU
8K RAC
128K L2
Advanced
2D Graphics
Display
Engine
PCM
Audio
Engine
and
DACs
Bus Bridge DRAM Controller
DMA
MCARD/
SCARD
Transport Input x6
Channel 3/4
HDMI
SD Video
HD/SD Video
SPDIF
Configurable
64-bit DDR2
Dual Serial
ATA-2
PCI 2.3 and Flash
RMX
x2
ISO7816 I/F
x2
High definition
AVC/MPEG-2//
MPEG-4/VC-1
Video Decoder
ITU-R-656
ITU-R-656
Decoder
Video
-Scalers
- Compositors
- Digital noise
reduction
- Delinterlacing
Multiformat
Audio
Decoder
L
R
Dual
USB
2.0
USB
2.0
IR/UHF
RX
IR TX
Triple
UARTs
GPIO
USB 2.0 x2
USB 2.0
Host/Client
GPIO
I
2
S Out
UARTx3
IR Out
IR In x2
UHF In
BSC
BSC x4
Gateway
Services
I
2
S In
Secure Processor
O
T
P
R
O
M
ITU-R-656/TTX
Soft Modem,
Si305X,
Ethernet
10/100
BASE-T
2
nd
Enet MAC