CY8CLED08
Resource), provide the flexibility to integrate almost any timing
requirement into the EZ-Color device.
1. EZ-Color™ Functional Overview
Cypress' EZ-Color family of devices offers the ideal control
solution for High Brightness LED applications requiring intel-
ligent dimming control. EZ-Color devices combine the power and
flexibility of PSoC (Programmable System-on-Chip). Cypress'
PrISM (precise illumination signal modulation) modulation
technology provides lighting designers a fully customizable and
integrated lighting solution platform.
EZ-Color GPIOs provide connection to the CPU, digital and
analog resources of the device. Each pin’s drive mode may be
selected from eight options, allowing great flexibility in external
interfacing. Every pin also has the capability to generate a
system interrupt on high level, low level, and change from last
read.
The EZ-Color family supports a range of independent LED
channels from 4 channels at 32 bits of resolution each, up to 16
channels at 8 bits of resolution each. This enables lighting
designers the flexibility to choose the LED array size and color
quality. PSoC Designer software, with lighting specific drivers,
can significantly cut development time and simplify implemen-
tation of fixed color points through temperature, optical, and LED
binning compensation. EZ-Color's virtually limitless analog and
digital customization enable simple integration of features in
addition to intelligent lighting, such as battery charging, image
stabilization, and motor control during the development process.
These features, along with Cypress' best-in-class quality and
design support, make EZ-Color the ideal choice for intelligent HB
LED control applications.
1.3 The Digital System
The Digital System is composed of 8 digital blocks. Each block
is an 8-bit resource that can be used alone or combined with
other blocks to form 8, 16, 24, and 32-bit peripherals, which are
called user module references.
Figure 1-1. Digital System Block Diagram
Port 5
Port 3
Port 1
Port 4
Port 2
Port 0
To System Bus
Digital Clocks
From Core
To Analog
System
1.1 Target Applications
■ LCD Backlight
DIGITAL SYSTEM
Digital PSoC Block Array
■ Large Signs
Row 0
4
■ General Lighting
■ Architectural Lighting
■ Camera/Cell Phone Flash
■ Flashlights
DBB00
DBB01
DCB02
DCB03
4
4
8
8
8
8
Row 1
DBB11 DCB12
DBB10
DCB13
1.2 The PSoC Core
4
The PSoC Core is a powerful engine that supports a rich feature
set. The core includes a CPU, memory, clocks, and configurable
GPIO (General Purpose I/O).
GIE[7:0]
GIO[7:0]
GOE[7:0]
GOO[7:0]
Global Digital
Interconnect
The M8C CPU core is a powerful processor with speeds up to 48
MHz, providing a four MIPS 8-bit Harvard architecture micropro-
cessor. The CPU uses an interrupt controller with 17 vectors, to
simplify programming of real time embedded events. Program
execution is timed and protected using the included Sleep and
Watch Dog Timers (WDT).
Digital peripheral configurations include the following:
■ PrISM (8 to 32 bit)
■ PWMs (8 to 32 bit)
Memory encompasses 16K of Flash for program storage, 256
bytes of SRAM for data storage, and up to 2K of EEPROM
emulated using the Flash. Program Flash uses four protection
levels on blocks of 64 bytes, allowing customized software IP
protection.
■ PWMs with Dead band (8 to 32 bit)
■ Counters (8 to 32 bit)
■ Timers (8 to 32 bit)
The EZ-Color family incorporates flexible internal clock gener-
ators, including a 24 MHz IMO (internal main oscillator) accurate
to 2.5% over temperature and voltage. The 24 MHz IMO can also
be doubled to 48 MHz for use by the digital system. A low power
32 kHz ILO (internal low speed oscillator) is provided for the
Sleep timer and WDT. If crystal accuracy is desired, the ECO
(32.768 kHz external crystal oscillator) is available for use as a
Real Time Clock (RTC) and can optionally generate a
crystal-accurate 24 MHz system clock using a PLL. The clocks,
together with programmable clock dividers (as a System
■ UART 8 bit with selectable parity (up to 2)
■ SPI slave and master (up to 2)
■ I2C slave and multi-master (1 available as a System Resource)
■ Cyclical Redundancy Checker/Generator (8 to 32 bit)
■ IrDA (up to 2)
■ Generators (8 to 32 bit)
Document Number: 001-12981 Rev. *E
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