STW51000 Ver la hoja de datos (PDF) - STMicroelectronics
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STW51000 Datasheet PDF : 8 Pages
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GreenSIDE - STW51000
4 Overview/Description
GreenSIDE is a cost-effective, System-on-Chip device that targets applications in wireless infrastructure
equipment. The device combines two quad-MAC ST140 DSP cores, a standard ARM926-EJS RISC pro-
cessor core providing a total of 29000 Mops, 7500 Mips, 4800MMacs/s, 16Mb of embedded SRAM mem-
ory, dedicated Turbo Decoding Engine (TDE) for Data error correction, and Convolutional Decoding
Engine (CDE) for Voice error correction for 2.5G and 3G standards, with a complete set of high-perfor-
mance peripherals. As a highly-integrated baseband modem solution, GreenSIDE offers a unique oppor-
tunity to significantly reduce the overall cost/channel and cost/MIPS.
The GreenSIDE Super Integrated DSP Engine is based on the ST Open Wireless Infrastructure Platform.
This is an extendable solution comprising hardware, software and integration tools used to develop a cost
effective Wireless Infrastructure silicon solutions in a very short time.
The GreenSIDE ASSP is designed to be extremely flexible to suit all leading-edge wireless standards
such as W-CDMA, CDMA2000, TD-SCDMA and EDGE. GreenSIDE is a step forward in the System Inte-
gration race. It offers a true System-on-Chip solution, including multiple embedded cores, and infrastruc-
ture application specific IP elements.
Figure 2. GreenSIDE ASSP Block Diagram
ETM
ARM
926
Program
Cache
Data
Cache
VIC
GreenSIDE Parallel
Com.
Interfaces
DMA
UART
Timers
ITC
ST140
DSP
Bus Switch
UART
Timers
ITC
ST140
DSP
Bus Switch
Core Periph
1 x UARTs
32-bit GPIO
System
Control
PLL
2 x 32-bit
Timers
COPRO
Turbo Decoder
Engine
Convolutional
Decoder
Engine
Cross Bar
²
DMA Periph
2 x Ethernet
MAC
2x MSP
UTOPIA
External Memory
Interface
GMM
2 MB
(SRAM)
5 Architecture Overview
The GreenSIDE architecture is designed using ASIC Methodology. It employs re-usable embeddable
cores as well as application specific IP blocks such as a Turbo Decoder Engine, Convolution Decoder En-
gine, UTOPIA Interface, Multi-channel Serial Ports, Ethernet MAC, etc.
The GreenSIDE Super Integrated DSP Engine includes two ST140 Digital Signal Processing CPUs. Each
ST140 is a Quad-MAC DSP engine, able to process up to 24 complete W-CDMA modems for 12.2 kbps
voice users. Having two ST140 instances provides the support of 48 above defined voice users process-
ing capability.
GreenSIDE also includes an ARM926 micro-controller, used as a master for the complete system. It al-
lows the setup of peripherals within the system, and schedules the DSP task execution.
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