Product category: Communications ICs (Wired)
News Release from: Cypress Semiconductor | Subject: EZ-Host and EZ-OTG
Edited by the Electronicstalk Editorial Team on 25 February 2003
USB hosts aim for embedded connectivity
Cypress Semiconductor has a new family of next-generation USB 2.0 embedded host controllers
Featuring 16bit RISC controllers, large memory and low power, the devices make it possible to develop embedded applications - including cellphones, PDAs, printers, cameras and music players - that can connect to each other without the need for a host computer. EZ-Host (CY7C67300) is a multi-port embedded host/peripheral controller targeted at the non-handheld market - including set-top boxes, DVD players, Internet appliances, wireless access points, print servers and KVM switches.
This article was originally published on Electronicstalk on 25 February 2003 at 8.00am (UK)
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EZ-Host contains a high-performance 16bit RISC microcontroller; two USB serial interface engines (SIEs), each individually configurable, with two ports per SIE; and a configurable I/O block that can connect to numerous standard interfaces.
EZ-OTG (CY7C67200) contains most of the functionality of EZ-Host but is customised for mobile devices - including cellphones, PDAs, video and still cameras, MP3 players and mass storage devices.
Supporting the USB On-the-Go (OTG) protocol, EZ-OTG enables true "plug-and-play" connectivity between portable devices.
EZ-OTG contains two USB SIEs, with one port per SIE, and a power-boost circuit that operates down to 2.7V.
Both EZ-Host and EZ-OTG can operate as either hosts or peripherals, depending on the application.
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Both contain 16Kbyte of RAM, making possible custom applications; multiple CPU interfaces; and onboard BIOS to handle a portion of the USB processing.
The embedded processor eliminates the need for an external CPU in many applications.
Cypress has leveraged its industry leading SRAM technology to provide a device with added functionality while remaining cost competitive with other solutions in the marketplace.
To enable the advanced capabilities the devices, Cypress provides all of the necessary support, including a complete development kit with programming tools, Linux drivers, framework firmware, and functional examples.
Real time operating system (RTOS) support, including availability of a USB stack and class drivers, simplifies the total solution development effort.
"EZ-Host and EZ-OTG give designers a new level of flexibility and control", said Cathal Phelan, Vice President of Cypress's Personal Communications Division.
"They enable new applications in systems without an existing CPU, and act as a co-processor in applications with a CPU, enabling additional functionality and enhanced system performance.
Their large onboard memory space lets designers embed custom code to produce tailored applications without incurring the cost of an ASIC.
They're the most flexible USB 2.0 host/peripheral solutions on the market, and at a very attractive price".
"Cypress is taking the right approach", said Brian O'Rourke, Senior Analyst with Instat/MDR.
"The high-growth opportunities for USB in the future will be the ones that move USB away from the PC.
This includes portable applications such as cell phones and PDAs as well as non-PC form factors like set-top boxes".
These dual-role devices comply with the USB 2.0 specification, support both full- and low-speed traffic and are fully compatible with the USB On-the-Go Supplement.
Both devices give OEM customers the ability to create a true USB mobile and/or embedded host device that can perform select host functions independent of a PC but that can also operate as a peripheral to a PC.
Both development kits and devices are currently sampling to qualified beta customers.
EZ-Host (CY7C67300) is available in a 100-pin TQFP package for $4.99 in quantities of 10,000 units.
EZ-OTG (CY7C67200) is available in a 48-ball FBGA for $3.99 in quantities of 10,000 units.
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