Cypress AN2121SC Manual do produto - Página 4

Procurar online ou descarregar pdf Manual do produto para Controlador Cypress AN2121SC. Cypress AN2121SC 16 páginas. Ez-usb series 2100 usb controller

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Unprecedented "Soft" Architecture

The focus of the EZ-USB

family is to provide the

peripheral designer a

multitude of design

configurations and

migration paths. The "soft,"

programmable nature of the

EZ-USB architecture

provides flexibility while

minimizing risks.

EZ-USB Series 2100

Soft Configuration

Host PC

Code

Download

USB requires synchronization

between four major technology

suppliers: operating system,

UHCI/OHCI interfaces, hub

controllers, and peripheral

devices. In a traditional hard-

ware configuration, ensuring

that a peripheral device will

work with every combination of

these technologies is a time-

consuming and expensive task.

Using the EZ-USB chip's "soft"

configuration, the peripheral

developer can easily devise

workarounds or accommodate

dynamic changes. At the same

time, there is minimum risk to

design implementation.

Peripheral manufacturers can

provide firmware updates in

conjunction with driver changes

via a floppy disk or through

Internet downloads. Thus,

Anchor Chips

USB Controller

Now it's easy.

Hardware configuration

Software upgrades

RAM

Memory enhancements

Feature upgrades

software device configurability

provides easy field updates, last

minute software code changes

prior to production, or alterations

due to ever-changing standards.

In these ways, the EZ-USB chip

makes development easier and

guards against product obsoles-

cence.

RAM Architecture

With an enhanced 8051 core

combined with 4 or 8 Kbytes of

SRAM in a single chip, users have a

complete solution. The 8051's

firmware can be stored in the hard

disk (along with the driver) and

downloaded into the peripheral

during its initialization. That

makes updates as easy as updating

any other PC software.