Cypress Semiconductor enCoRe CY7C64215 Manual de usuario descargar pdf (Pagina 3)

August 17, 2011 Document No. 001-15340 Rev. *A

AN6073

protection modes available. It has a 1K SRAM for data vari-

ables and stack.

The device has an integrated full-speed USB SIE with four

unidirectional data endpoints and one bidirectional control

endpoint. It has a dedicated 256-byte buffer for the endpoint

FIFOs and is USB 2.0 compliant. The full-speed USB block

does not require any external components for operation. It

has an internal oscillator and integrated 3.3V voltage regula-

tor.

enCoRe III provides for precision programmable clocking. It

has an internal main oscillator (IMO)24/48MHz with ±4%

accuracy. It also has a low power oscillator for the sleep

timer. With USB communications, the IMO can lock to the

incoming USB traffic to provide an accuracy of ±0.25%.

All of the device’s GPIOs can be configured as Pull Up, Pull

Down, High-Z, Strong, or Open Drain Drive Mode. It has con-

figurable interrupts and 25-mA sink capability on all GPIOs.

As a part of the component reduction, enCoRe III provides

the following System Resources in addition to the configu-

rable blocks.

■ I

C™ Slave, Master, and Multi-Master to 400 kHz

■ Watchdog and Sleep Timers

■ User-Configurable Low Voltage Detection

■ Integrated Supervisory Circuit

■ On-chip Precision Voltage Reference

It also comes with complete Development Tools.

■ Free Development Software (PSoC Designer™)

■ Full-Featured In-Circuit Emulator and Programmer

■ Full Speed Emulation

■ Complex Breakpoint Structure

■ 128K Bytes Trace Memory

Figure 2. Block Diagram of the CY7C64215

The CY7C64x13 and the CY7C64215 are both 8-bit micro-

controllers with an integrated Full-Speed USB Serial Interface

Engine (SIE). While they are similar in some of the features,

hardware blocks, and integrated functionalities, they differ

vastly in certain aspects. Understanding these differences is

necessary to port designs from CY7C64x13 to CY7C64215

successfully. The differences between these two microcon-

trollers, at a higher level, are listed in the following table. This

is followed by a detailed look at some of the differences along

with pseudo code to aid in design migration.

1 2 3 4 5 6 7 8 ... 15 16

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