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Advance security and DRM support including
SVP, MS-DRM and DTCP-IP
DVD data decryption
Advanced high definition video decoding
(H264/VC-1/MPEG2)
Advanced standard definition video decoding
(H264/VC-1/MPEG2/AVS)
Advanced multi-channel audio decoding
(MPEG 1, 2, MP3, DD/DD+, AAC/AAC+,
WMA9/WMA9pro)
Linux, Windows CE and OS21 compatible ST40
applications CPU (450 MHz)
32-bit DDR1/DDR2 compatible local memory
interface
Multi-stream, DVR capable transport stream
processing
Extensive connectivity (dual USB hosts,
e-SATA, ethernet MAC/MII/RMII, MPX, and
PCI)
DDR1
DDR2
SDRAM
6-ch
PCM out
S/PDIF
out
Description
The STi7105 uses state of the art process
technology to provide an ultra low-cost, fully
featured HD AVC decoder IC. It is a highly
integrated system-on-chip suitable for STB
markets across all networks (cable/satellite/DTT/x-
DSL/IP) worldwide.
The STi7105 is targeted at the latest Operator and
CE manufacturer requirements for STBs which
utilize advanced HD decoding (H264/VC-
1/MPEG2), and which conform to DVB, ISMA,
ATIS-IIF, SCTE, DirecTV, ATSC, ARIB, CEA, ITU,
OpenCable and MSTV specifications.
Serial ATA
HDD, int/ext
Line side
DAA
Serial
Peripheral I/O
FLASH
and external interrupts
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JTAG
2-ch Audio L/R
PCM in
out
Digital
video in
Dual
USB 2.0
hosts
16/32
LMI
ST40-300 core 450 MHz
UDI
TMUs/INTC
MMU
Audio decoder
players and
interfaces
ST231
core
eSATA
interface
USB
2.0
System
side
DAA
Audio
DACs
DVP
USB
2.0
Key
Scan
2x I/F
SmCard
GPIOs
Comms
SPI
IR Tx/Rx
UHF Rx
ILC
MAFE
interface
4x
UARTs
4x
SSC/I2C
PWM
32 K I cache
32 K D cache
CPU/FPU core
STBus
capture
Sec
Dual
PTI 4SL2
3
SWTS
2
2
CP
NSK
PDES
DUAL
FDMA
Delta Mu
Advanced
Video decoder
ST231
Bdisp
blitter
Main/aux Display
compositor and
pass through
Main video
display
DEI
Clock gen
and
system
services
Aux video
display
PCI EMI
EMPI
TSmerger/router
Ethernet,
MAC
Output
stage
TXT
DENC
6 DACs HDMI
VTGs
DVO0 DVO1
TS TS TS TSIN1/
IN0 IN2 IN3 TSOUT0
Resets/
clocks/
modes
MII/RMII
Analog video
output
(HD/SD)
TMDS
Digital Digital
video
video
output 0 output 1
FLASH
NOR/NAND
SFLASH
September 2008
Rev 1
1/11
www.st.com
11
For further information contact your local STMicroelectronics sales office.
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