Digital Signal Processors
MSC8254 High-Performance Multicore DSP
Four-core programmable DSP for medical imaging, aerospace, defense
and advanced test and measurement
Overview
The MSC8254 is based on the industry's
highest performance DSP core, built on
StarCore technology, and designed for the
advanced processing requirements and
capabilities of today’s high-performance
medical imaging, aerospace, defense and
advanced test and measurement markets. It
delivers industry-leading performance and
power savings, leveraging 45 nm process
technology in a highly integrated SoC to
provide performance equivalent to 4 GHz of
a single-core device. The MSC8254 will help
equipment manufacturers create end products
and services that integrate more functionality
in a smaller hardware footprint.
The MSC8254 DSP delivers a high level of
performance and integration, combining
four fully programmable, new and enhanced
SC3850 DSP cores, each running at up to
1 GHz. The SC3850 DSP core has been
independently assessed to enable 40 percent
more processing capability per MHz than the
nearest DSP competition. A high-performance
internal RISC-based QUICC Engine
subsystem supports multiple networking
protocols to guarantee reliable data transport
over packet networks while significantly
offloading processing from the DSP cores.
The MSC8254 embeds a substantial amount
of internal memory to support a variety
of advanced, high-speed interface types,
including two Serial RapidIO
®
interfaces,
two Gigabit Ethernet interfaces for network
communications, a PCI Express
®
interface,
two DDR controllers for a high speed, industry
standard memory interface and four multi-
channel TDM interfaces.
The MSC8254 allows a high degree of
scalability through pin compatibility with all
MSC825x and MSCC815x DSP devices.
MSC8254 Block Diagram
DDR Interface 64/32-bit 800 MHz
DDR Interface 64/32-bit 800 MHz
M3 Memory
1056 KB
I/O Interrupt
Concentrator
UART
Clocks
CLASS
Timers
Reset
JTAG
DDR2/DDR3
DDR2/DDR3
SDRAM Controller SDRAM Controller
SC3850 DSP Core
32 KB L1
I-Cache
32 KB L1
D-Cache
DMA
4
TDMs
QUICC Engine
Subsystem
Two
SGMII
High-Speed
Serial Interface
Semaphores
Virtual
Interrupts
Boot ROM
I
2
C
Other
Modules
512 KB L2 Cache/
M2 Memory
Four DSP Cores at 800 MHz/1 GHz
Four TDMs Each
Supporting 8 E1
Two RGMII
SPI
Two Serial RapidIO
®
Interfaces
x1/x4 3.125 Gbaud
PCI Express
®
Interface x1/x2/x4
Two SGMII
Features and Benefits
• Four StarCore DSP SC3850 core
subsystems operating at up to 1 GHz/8000
MMACS per core and up to 32000 MMACS
per device
• Two master buses for data transfers
from/to the system memory at a total
throughput up to 50 Gbps
• High-speed, high-bandwidth CLASS
fabric arbitrates between the DSP cores
and other CLASS masters to M2 memory,
M3 memory, DDR controllers and the
configuration registers
• Two DDR controllers with up to 400 MHz
clock (800 MHz data) rate and 32/64-bit
DDR2/3 SDRAM data bus. Supports
SODIMMs and up to 2 GB per controller
• 32-channel DMA controller
• Dual RISC core QUICC Engine subsystem
operating at up to 500 MHz provides
parallel packet processing independent of
the DSP cores
Supports:
Two Gigabit Ethernet controllers
supporting RGMII or SGMII
SPI
• HSSI that supports two x4 SerDes ports,
including:
Two Serial RapidIO interfaces supporting
x1/x4 operation up to 3.125 Gbaud
One PCI Express interface that supports
x1/x2/x4 operation
Multiplexing capability for RapidIO,
PCI Express and SGMII signals through
the two SerDes ports
• Four TDM interfaces
• UART and I
C interfaces
2
Development Support
Freescale supplies a complete set of
CodeWarrior DSP development tools for
the MSC8254 device. The tools provide
easier, more robust ways for designers to
develop optimized DSP and gives designers
everything they need to exploit the advanced
capabilities of the MSC8254 architecture.
Support tools include:
• Eclipse-based integrated development
environment (IDE)
• C and C++ compiler with in-line assembly
• Librarian
• Multicore debugger
• Royalty-free RTOS
• Software simulator
• Profiler
• High-speed run control
• Host platform support
• MSC8156ADS development board
• MSC8156EVM evaluation module
Contact your local sales office or
representative for availability.
• Eight software watchdog timers
• Sixteen 16-bit timers
• Two 32-bit general purpose timers per core
for RTOS support
• I/O interrupt concentrator and virtual
interrupt support
• Eight hardware semaphores
• 32 GPIO ports multiplexed with interface
signals and IRQ inputs
• Boot options: Ethernet, Serial RapidIO, I
2
C
and SPI
• Three input clocks and five PLLs
• JTAG Test Access Port (TAP) and boundary
scan architecture designed to comply with
IEEE 1149.1™ standard for profiling and
performance monitoring support
• Reduced power dissipation with wait,
stop and power down low-power
standby modes
• Optimized power management circuitry
• Technology: CMOS 45 nm SOI technology
in 29 x 29 mm, 783 ball, FC-PBGA package
Learn More:
For current information about Freescale
products and documentation, please visit
freescale.com/DSP.
Freescale, the Freescale logo, CodeWarrior and StarCore are trademarks of Freescale Semiconductor, Inc. Reg. U.S. Pat. & Tm. Off.
QUICC Engine is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their respective
owners. © 2010 Freescale Semiconductor, Inc.
Document Number: MSC8254FS
REV 1
DIY/Open Source Hardware
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