STMICROELECTRONICS STN8812

STn8810/STn8811/STn8812
Trio of Nomadik application processors
bring multimedia to next-generation mobile devices
DATA BRIEF
Features
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Smart video accelerator
● Real-time encoding or decoding up to VGA 30 fps
● Megapixel JPEG encode/decode
● Ultra low-power implementation
Smart audio accelerator
● Extensive digital-audio software library
● Ultra low-power implementation
Advanced power management
● Run, idle, doze and sleep modes
● CPU clock with programmable frequency
● Embedded 1.2 V logic supply switch
ARM926EJ 32-bit RISC CPU, up to 350 MHz
● 32-Kbyte instruction cache, 16-Kbyte data cache
● 3 instruction sets: 32-bit for high performance,
16-bit (Thumb) for efficient code density, byte Java
mode (Jazelle™) for direct execution of Java code
● Embedded medium trace module (ETM Medium+)
On-chip SRAM and ROM
Advanced security
● Comprehensive security framework
● Protected access to secured ROM and RAM
DDR/SDR-SDRAM memory controller
NOR Flash/NAND Flash/CompactFlash/CF+ controller
MultiMediaCard/SD Card/SDIO host controller
Multichannel DMA
controller
Secured
RAM/ROM
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USB On-The-Go interface
Camera interfaces
Color LCD controller for STN or TFT panels or
display interface for display module
● 24-bpp true color
TV output
I/O peripherals
● UARTs
● IrDA (SIR/MIR/FIR) interface
● Synchronous serial port (SSP)
● Multichannel serial port (MSP)
● I²C multi-master/slave interface
● Modem interface
General-purpose I/Os
System and peripheral controller
● Multichannel DMA controller
● Interrupt controller
● Timers/counters
Programmable PLL for CPU and system clocks
Two crystal oscillators: 32 kHz and 13/19.2 MHz
JTAG IEEE 1149.1 boundary scan
TFBGA 12 x 12 mm, 288 + 36 balls, 0.5 mm pitch
USB-OTG
Smart audio
accelerator
eSRAM
buffer
Smart video
accelerator
PLLs
Security toolbox
TV output
SD/SDIO/MMC
Bridge
Power
management
Color LCD controller
Display interface
Bridge
NAND/NOR Flash
controller
DDR SDRAM
controller
Camera interfaces
Icache
Dcache
Timers
FIrDA; I²C
Watchdog
MSP
RTC
ARM926EJ
JTAG/trace
System
controller
Interrupt
controller
UART
SSP
GPIO
Modem interface
February 2005
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
Rev. 1
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STn8810/STn8811/STn8812
STn8810 overview
The convergence of computing, multimedia and mobile communications is well underway. Already the
familiar voice phone is being transformed into a personal device with a wide range of multimedia capabilities.
Soon mobile users will be able to benefit from a broad spectrum of multimedia features and services, to
include capturing, sending and receiving images, videos and music. To deliver such data-heavy, processingintensive services, portable handheld systems must be optimized for high performance but low power, space
and cost.
In response to this need, the STn8810 processor platform from STMicroelectronics is a culmination of
breakthroughs in video coding efficiency, inventive algorithms and chip implementation schemes. It will
enable smart phones, wireless PDAs, internet appliances and car entertainment systems to play back media
content, record pictures and video clips, and perform bidirectional audio-visual communication with other
systems in real time.
The STn8810 focuses on the essential features to meet the future needs of mobile products and services: a
high-performance multimedia capability coupled with low power consumption, and based on an open
platform strategy.
Figure 1: Typical system architecture using the STn8810
Touch screen
controller
TFT
Mono/color STN
smart panel
Keypad
Camera
LCD backlight
GPIO
SSP
PWL
IMAGIK
CLCD/
MDIF
TV
output
Camera
interface
RF
Fast synchronous
modem interface
NAND Flash
Touareg
NOR Flash
SRAM
ROM
GSM/GPRS/EDGE
xCDMA
modem chip set
I²C
Energy
management
FIrDA
Fast IrDA
FSMC
CompactFlash/CF+
ATA device
UART
Bluetooth
I²C
FM radio
STn8810
Low-power
SDRAM
Mobile
DDR SDRAM
SDMC
UART
GPS module
MMC
SD-Card
MMCI
USB-OTG
SDIO
RTC
ETM9
JTAG
Debug, trace
Clock, reset
I²S
32 kHz 13/19.2 MHz
Reset
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Audio
codecs
USB device
(e.g. 802.11xWLAN)
STn8810/STn8811/STn8812
Key benefits
The STn8810 brings the following key benefits to mobile manufacturers and consumers:
● Unsurpassed audio and video quality,
● Ultra-low power consumption for longer battery operation,
● Easier application development for shorter time-to-market,
● Scalability for multiple market segments and future multimedia applications.
Main features
The STn8810 processor platform enables compelling multimedia applications by means of its unique
distributed-processing architecture. The application processor features low-power smart accelerators which
handle all audio and video functions. These free the main CPU for control and program flow tasks, or allow
the CPU to enter power-saving modes to prolong battery life. The smart accelerators operate independently
and concurrently to ensure the lowest absolute system power and deterministic high-performance.
The main features of the platform are:
● A smart video accelerator for VGA video encoding and decoding, with camera interfaces,
● A smart audio accelerator containing a comprehensive set of digital audio decoders and
encoders, and offering a large number of 3-D surround effects,
● An advanced power management unit which offers a number of power saving modes,
● The ARM926EJ processor, a powerful industry-standard CPU with Java acceleration,
● On-chip ROM and SRAM memory devices,
● Advanced security framework for authentication and digital rights management,
● Multichannel DMA controller for efficient data transfer without CPU intervention,
● A multi-layer AMBA crossbar interconnect for optimized data transfers between the CPU,
accelerators, memory devices and peripherals,
● A wide range of peripheral interfaces (GPIO, USB-OTG, UART, I²C, FIrDA, SD/SDIO/MMC,
serial ports, TV output, color LCD and camera interfaces),
● Direct support for high-level operating system such as Symbian™, Linux and WinCE® operating
systems (OSs).
Low power consumption
The new multimedia functionality of mobile products brings with it an increase in power consumption that is
outpacing advances in battery technology. The STn8810 chip saves on power by avoiding the need for high
clock speeds wherever possible, but its extremely low power consumption results from a systematic effort at
all design levels to reduce power requirements.
These include:
● The use of smart accelerators and distributed processing to offload from the CPU,
● Efficient code execution by means of innovative algorithms, energy-efficient instruction set
architectures and Java acceleration,
● The efficient use of bandwidth for on-chip data transport, achieved by data compression,
buffering and image scaling,
● Aggressive power management which includes turning off inactive parts of the chip and keeping
the CPU in power-saving modes as much as possible.
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STn8810/STn8811/STn8812
Open platform strategy
The STn8810 is based around the MIPI™ software and hardware interface standard. This open platform
strategy provides manufacturers with roadmap flexibility, allowing them to avoid becoming locked into a
proprietary CPU architecture or vendor technology. This approach is facilitated by the following design
points.
● The STn8810 employs the third-party ARM® processor which is the standard CPU for mobile
devices, with industry-wide application support.
● Open, standard APIs are provided for the development of application code on a level which is
abstracted from the physical hardware. This allows the development of multimedia plug-ins that are
portable between products and which can be reused on future products without modification.
● The STn8810 offers a rich set of peripherals and the capability of adding new smart accelerators
when required.
● The STn8810 enables best-in-class algorithm development on its smart accelerators.
Stacked memory options
The STn8811 and STn8812 build on the STn8810 by stacking their respective amounts of both SDRAM and
Flash memories in pin-compatible packages, a technology that STMicroelectronics has mastered for
commercial use. In addition to saving space - the footprint of the stacked chips is the same as that for the
STn8810, a critical factor for today’s compact clamshell designs - these stacked versions give manufacturers
unprecedented flexibility on the production line.
The stacked versions promise lower product costs, added system security, faster data throughput, and future
performance enhancements.
Revision History
Table 1: Revision History
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Date
Revision
February 2005
1
Description of Changes
First Issue.
STn8810/STn8811/STn8812
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use
of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication
or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice.
This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical
components in life support devices or systems without the express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
Nomadik is a trademark of STMicroelectronics
All other names are the property of their respective owners.
© 2005 STMicroelectronics - All Rights Reserved
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