Freescale 公司的MPC8315E是PowerQUICC II Pro通信处理器,采用e300 (603e based)内核, 工作频率从266MHz到400 MHz,有16K D/I L1 高速缓存,具有多种接口以及安全处理单元如AES, PKEU, DES, 3DES, MDEU,满足SOHO应用要求. MPC8315E可广泛应用在网络附庸存储(NAS),数字媒体服务器(DMS)和住宅网关(VoIP, Wifi, 存储)以及打印/图像.本文介绍了MPC8315E的主要特性,方框图以及MPC8315E-RDB参考平台的主要特性和平台方框图.
MPC8315E: PowerQUICC II Pro Communications Processor
The MPC8315E communications processor family enables a wide range of feature-rich
applications that make the digital home experience easier, richer and safer. The cost-effective MPC8315E processor meets the requirements of several small office/
home office (SOHO) applications including consumer network attached storage (NAS),
digital media server, residential gateway, WLAN access point, printing, IP services and industrial control. It provides more CPU performance, additional functionality and faster interfaces while addressing important time to market, price, power consumption and real estate board requirements. The integration of Serial ATA, PCI Express® Gigabit Ethernet, high-speed USB 2.0, TDM and low-power management makes it unique in the market place. For extremely precise clock synchronization for applications such as time-sensitive telecommunications services, industrial network switches, powerline networks and test/measurement devices.
Core Complex
The MPC8315E family incorporates a unique configuration of the e300 (603e based) core. This configuration has been designed to include dual integer units as well as a modified multiply instruction.
These architectural enhancements enable more efficient operations to be executed in
parallel, resulting in a significant performance improvement. The e300 core complex also
includes 16 KB of L1 instruction and data caches and on-chip memory management
units (MMUs).
MPC8315E主要特性:
Functional Requirements
e300 core from 266 to 400 MHz with 16K D/I L1 cache
I/O DeSCRJPTion
16-/32-bit DDR1/2 266 MHz
Enhanced local bus
PCI 2.3, 32-bit up to 66 MHz
USB 2.0 (host/device with PHY)
Two SATA I/II (3.0 Gbps) controllers
2 x 1 PCI Express V1.0a
Two 10/100/1000 enhanced Ethernet MACs with PHY
RGMII, RTBI, RMII, MII, SGMII muxed with PCI Express
Multi-channel DMA controller
Security Processing Unit
AES, PKEU, DES, 3DES, MDEU
Optimized for IPSEC and DTCP-IP
Legacy Protocol Support
TDM—to connect to CODEC
General Sampling: Now
Production: Q2 2008
TEPBGA II package
MPC8315E目标应用:
Network Attached Storage (NAS)
Digital Media Server (DMS)
Residential Gateway (VoIP, Wifi, Storage)
Printing/Imaging 
图1.MPC8315E 方框图
MPC8315E-RDB参考平台
The MPC8315E-RDB reference platform is ideal for hardware and software development
of the two-drive consumer network attached storage (NAS) and the digital media server. The cost-effective MPC8315E communications processor family meets the requirements of several small office/home office (SOHO), triple-play converged residential gateway and industrial control applications.
It leverages Freescale’s highly integrated MPC8315E processor built on Power
Architecture™ technology and leading-edge external components—2 x Gigabit Ethernet,
4 x USB, 2 x Serial ATA (SATA), dual Legerity SLIC, PCI Express®, mini Express Connector and an Ethernet connection to broadband powerline capability using DS2. The high level of integration in the MPC8315E helps to lower overall system costs, improve performance and simplify board design. The MPC8315E microprocessor supports dual 10/100/1000 Mbps Ethernet controllers, single 64-bit PCI controller, 2 x PCI Express, integrated security engine, USB 2.0 with PHY integrated, 4-channel direct memory access (DMA), dual universal asynchronous receiver/transmitter (DUART), serial peripherals, general-purpose I/O and system timers. The introduction of Gigabit Ethernet (SGMII), high-speed USB 2.0, and low-power management makes it unique in the marketplace.
MPC8315E-RDB参考平台主要特性:
This section presents the features, specifications and block diagram of the
MPC8315E-RDB board.
CPU: Freescale MPC8315E running at 400/266 MHz (CPU/DDR2)
Ethernet
2 Gigabit RGMII connections directly to PHY
One Ethernet connection to broadband powerline capability using DS2
PCI Express
PCI Express add-in connector MiniPCI Express for WLAN
SATA
Two standard SATA connectors eSATA will be available through SATA-eSATA connectors
SPI/TDM
Connected to dual Legerity SLIC/SLAC
I2C
Connected to real-time clock May be eliminated using the MCU
Dual UART
Connectors for debug connectivity Extra header (compliant to MPC832x RDB) for Bluetooth®/ZigBee® future connectivity
Local bus
NAND flash/NOR flash memory
High-speed USB
Connector directly on board 3-port USB hub
PCI
One standard and one MiniPCI connector
Memory
32-bit DDR2 with population option for 16-bit
图2.MPC8315E-RDB参考平台方框图
图3. MPC8315E-RDB参考平台外形图
本文关键字：通信 电子技术，电工技术 - 电子技术
