Motorola MCF547x manual Freescale Ordering Information, Design Challenges

HOME ENTERTAINMENT GATEWAY

Cable or	Set-Top Box	A/V
Satellite
		V
	TV

A

Surround Sound

A/V

DVD Player

Cable or

Telco

Cable/DSL Modem
WAN
Entertainment	WLAN
Gateway
	LAN
USB 2.0

PC

Freescale Ordering Information

Part Number	Product Highlights					Additional Information
MCF5475ZP266	Two 10/100 Ethernet Controllers,			0	Device with Integrated PHY,	266 MHz
	v2.2 PCI Controller, DDR				Encryption Accelerator
MCF5475ZP200	Two 10/100 Ethernet Controllers,			2.0	Device with Integrated PHY,	200 MHz
	v2.2 PCI Controller,		Memory Controller, Encryption Accelerator
MCF5474ZP266	Two 10/100 Ethernet Controllers, USB 2.0				Device with Integrated PHY,	266 MHz
	v2.2 PCI Controller,		Memory Controller
MCF5474ZP200	Two 10/100 Ethernet Controllers, USB 2.0				Device with Integrated PHY,	200 MHz
	v2.2 PCI Controller, DDR Memory Controller
MCF5473ZP200	One	Ethernet Controller, USB 2.0 Device with Integrated PHY,				200 MHz
	v2.	Controller, DDR Memory Controller, Encryption Accelerator
MCF5472ZP200		10/100 Ethernet Controller, USB 2.0 Device with Integrated PHY,				200 MHz
		PCI Controller, DDR Memory Controller
MCF5471ZP200	Two 10/100 Ethernet Controllers, v2.2 PCI Controller, DDR Memory Controller,					200 MHz
	Encryption Accelerator
MCF5470ZP200	Two 10/100 Ethernet Controllers, v2.2 PCI Controller, DDR Memory Controller					200 MHz

Design Challenges

The key requirements of a microprocessor for the home entertainment gateway application are connectivity and price/performance. Processors for this application require dual Fast Ethernet interfaces for routing; a USB 2.0 device controller; and a PCI bridge to interface to the IEEE 802.11a/ b/g radios, (serial) ATA storage controller, MPEG2/AC3 video/audio

processor and optional IEEE 1394 controller. In addition, they require an I2C bus for controlling the video components and an infrared-capable serial port for IR remote control. The processor must have sufficient performance and memory bandwidth to handle simultaneous A/V recording and playback, routing, and file serving. A crypto engine is also required in order to accelerate encryption for the

wireless link and to encrypt files stored on the hard disk.

Because the home entertainment gateway application is an embedded, always-on device that requires a reliable RTOS or Linux→ operating system, full memory management capability is an asset.

SG2062-3