CY8C3865LTI-059 datasheet(42/129 Pages) CYPRESS

42 / 129 page

PSoC® 3: CY8C38 Family

Data Sheet

Document Number: 001-11729 Rev. *R

Page 42 of 129

7.1.4.4 Software Development

Figure 7-4. Code Editor

Anchoring the tool is a modern, highly customizable user

interface. It includes project management and integrated editors

for C and assembler source code, as well the design entry tools.

Project build control leverages compiler technology from top

commercial vendors such as ARM® Limited, Keil™, and

CodeSourcery (GNU). Free versions of Keil C51 and GNU C

Compiler (GCC) for ARM, with no restrictions on code size or end

product distribution, are included with the tool distribution.

Upgrading to more optimizing compilers is a snap with support

for the professional Keil C51 product and ARM RealView™

compiler.

7.1.4.5 Nonintrusive Debugging

Figure 7-5. PSoC Creator Debugger

With JTAG (4-wire) and SWD (2-wire) debug connectivity

available on all devices, the PSoC Creator debugger offers full

control over the target device with minimum intrusion.

Breakpoints and code execution commands are all readily

available from toolbar buttons and an impressive lineup of

windows—register, locals, watch, call stack, memory and

peripherals—make for an unparalleled level of visibility into the

system.

PSoC Creator contains all the tools necessary to complete a

design, and then to maintain and extend that design for years to

come. All steps of the design flow are carefully integrated and

optimized for ease-of-use and to maximize productivity.

7.2 Universal Digital Block

The UDB represents an evolutionary step to the next generation

of PSoC embedded digital peripheral functionality. The

architecture in first generation PSoC digital blocks provides

coarse programmability in which a few fixed functions with a

small number of options are available. The new UDB

architecture is the optimal balance between configuration

granularity and efficient implementation. A cornerstone of this

approach is to provide the ability to customize the devices digital

operation to match application requirements.

To achieve this, UDBs consist of a combination of uncommitted

logic (PLD), structured logic (Datapath), and a flexible routing

scheme to provide interconnect between these elements, I/O

connections, and other peripherals. UDB functionality ranges

from simple self contained functions that are implemented in one

UDB, or even a portion of a UDB (unused resources are

available for other functions), to more complex functions that

require multiple UDBs. Examples of basic functions are timers,

counters, CRC generators, PWMs, dead band generators, and

communications functions, such as UARTs, SPI, and I2C. Also,

the PLD blocks and connectivity provide full featured general

purpose programmable logic within the limits of the available

resources.

Figure 7-6. UDB Block Diagram

PLD

12C4

(8 PTs)

PLD

12C4

(8 PTs)

Datapath

Clock

and Reset

Control

Routing Channel

Datapath

Chaining

PLD

Chaining

Status and

Control

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