CY8C20X37 CYPRESS [Cypress Semiconductor], CY8C20X37 Datasheet - Page 5

• Manufacturer Part Number: CY8C20X37
• Manufacturer: CYPRESS [Cypress Semiconductor]

Additional System Resources
System resources provide additional capability, such as
configurable I
interface, three 16-bit programmable timers, various system
resets supported by the M8C low voltage detection and power-
on reset. The merits of each system resource are listed here:
■
■
■
■
■
■
Document Number: 001-69257 Rev. *F
The I
400 kHz communication over two wires. SPI communication
over three or four wires runs at speeds of 46.9 kHz to 3 MHz
(lower for a slower system clock).
The I
already low power consumption by eliminating the need for
CPU intervention until a packet addressed to the target device
is received.
The I
buffer to the external I
protocol, the master controls the read and write pointers into
the RAM. When this method is enabled, the slave does not stall
the bus when receiving data bytes in active mode. For usage
details, see the application note
-
Low-voltage detection (LVD) interrupts can signal the
application of falling voltage levels, while the advanced power-
on reset (POR) circuit eliminates the need for a system
supervisor.
An internal reference provides an absolute reference for
capacitive sensing.
A register-controlled bypass mode allows the user to disable
the LDO regulator.
AN56007.
2
2
2
C enhanced slave interface appears as a 32-byte RAM
C hardware address recognition feature reduces the
C slave/SPI master-slave module provides 50/100/
2
C slave, SPI master/slave communication
2
C master. Using a simple predefined
I2C Enhanced Slave Operation
Getting Started
The quickest way to understand PSoC silicon is to read this
datasheet and then use the PSoC Designer Integrated
Development Environment (IDE). This datasheet is an overview
of the PSoC integrated circuit and presents specific pin, register,
and electrical specifications.
For in depth information, along with detailed programming
details, see the
47/67/S PSoC devices.
For up-to-date ordering, packaging, and electrical specification
information, see the latest PSoC device datasheets on the web
at www.cypress.com/psoc.
Application Notes/Design Guides
Application notes and design guides are an excellent
introduction to the wide variety of possible PSoC designs. They
are
Application Notes under the Related Documentation tab.
Development Kits
PSoC Development Kits are available online from Cypress at
www.cypress.com/shop
regional and global distributors, which include Arrow, Avnet, Digi-
Key, Farnell, Future Electronics, and Newark. See
Kits on page
Training
Free PSoC and CapSense technical training (on demand,
webinars,
www.cypress.com/training. The training covers a wide variety of
topics and skill levels to assist you in your designs.
CYPros Consultants
Certified PSoC Consultants offer everything from technical
assistance to completed PSoC designs. To contact or become a
PSoC Consultant go to www.cypress.com/cypros.
Solutions Library
Visit our growing library of solution focused designs at
www.cypress.com/solutions.
application designs that include firmware and hardware design
files that enable you to complete your designs quickly.
Technical Support
For assistance with technical issues, search KnowledgeBase
articles and forums at www.cypress.com/support. If you cannot
find an answer to your question, create a technical support case
or call technical support at 1-800-541-4736.
located
CY8C20x37/37S/47/47S/67/67S
and
31.
Technical Reference Manual
at
workshops)
www.cypress.com/gocapsense.
and through a growing number of
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