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Contact:
Agnes Toan
Sr. PR Specialist
(408) 545-6909
ATN@cypress.com


For Immediate Release

Cypress Releases USB Host Controller Driver for Linux

Enables Linux Host Stack to Provide Embedded USB Host Support for
Applications Such as Cell Phones, MP3 Players and PDAs;
Leverages Cypress’s SL811HS USB Host/Peripheral Controller

SAN JOSE, Calif., May 22, 2002 – Cypress Semiconductor Corporation
(NYSE: CY) — the leader in USB technology—today announced the release of
its Linux USB host driver supporting the SL811HS embedded
host/peripheral controller. This driver will provide Linux developers
the ability to add USB host functionality to a variety of embedded
system applications, such as cell phones, MP3 players, network
appliances and PDAs.
 “Cypress continues to demonstrate its leadership in USB supporting
emerging markets and platforms such as embedded Linux,” said Jeff Chang,
product marketing manager for Cypress’s Personal Communications
Division.  “The release of this host controller driver will enable
developers to add USB host functionality to their embedded system
designs running Linux.”
 Currently, the Linux 2.44 kernel supports the Open Host Controller
Interface (OHCI) and the Universal Host Controller Interface (UHCI)
specifications for USB host controllers, which are typically implemented
in a PC architecture and environment. Since Cypress’s SL811HS is a
memory-mapped device, the release of this new driver allows the Linux
host stack to provide USB host support without realizing that there is a
non-OHCI/UHCI type host controller. This driver enables engineers to
bring their products to market more quickly.

About SL811HS
The SL811HS is Cypress’s first-to-market USB embedded host controller,
offering a dual-role port that can function as either a USB host or
peripheral supporting both full- and low-speed USB devices.

Pricing and Availability
The Linux USB 2.0 driver and source code are available now. To download
the source code, visit: http://www.cypress.com/press/linux.

About Cypress
Cypress Semiconductor is “Driving the Communications Revolution”™ with
high-performance integrated circuits for network infrastructure and
access equipment. Leveraging its process and system-level expertise, the
company designs and manufactures solutions targeted across wireless and
wireline communications. Cypress supports a wide range of industry
standards, such as SONET (OC-48, OC-192 and OC-768), Voice over Internet
Protocol (VoIP), InfiniBand™ and Gigabit Ethernet. The company’s
communications product lines include programmable high-speed physical
layer devices (PHYs), wirespeed network search engines (NSEs) and
network coprocessors (NCPs), and datapath switching elements (DSEs).
Cypress is also the industry’s leader in communications timing
solutions, networking-optimized communications memories and personal
connectivity solutions, such as USB and Bluetooth.
 Cypress is a leader in pure optical and optoelectronic technologies
designed to push network transmissions to higher performance levels and
to satisfy the increasing demand for network bandwidth. With a focus on
emerging communications applications, Cypress aims to become the
preferred silicon supplier for network infrastructure solutions and for
every network data stream to pass through at least one Cypress IC.
 Cypress employs 4,000 people worldwide. Its shares are listed on the
New York Stock Exchange under the symbol CY. More information about
Cypress is accessible on the Web at www.cypress.com.
# # #

“Safe Harbor” Statement under the Private Securities Litigation Reform
Act of 1995:  Statements herein that are not historical facts are
“forward-looking statements” involving risks and uncertainties,
including but not limited to: the effect of global economic conditions,
shifts in supply and demand, market acceptance, the impact of
competitive products and pricing, product development, commercialization
and technological difficulties, and capacity and supply constraints.
Please refer to Cypress's Securities and Exchange Commission filings for
a discussion of such risks.

Cypress is a registered trademark and “Driving the Communications
Revolution” and cypress.com are trademarks of Cypress Semiconductor
Corporation.  All other trademarks are the property of their respective
owners.