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NK9312 Evaluation Board
A Complete Evaluation Kit for Cirrus Logic EP9312/EP9315 ARM920T Microcontroller
RS232, USB Host, 10/100M Ethernet, LCD Interface, VGA, IIS, DMA, AC97...
Capable of supporting Linux, WinCE or any embedded operating system
The NK9312 Evaluation Board is a full-featured evaluation board using the Cirrus Logic EP9312/EP9315
processor, which are the ones in a series of ARM920T-based processors. The ARM920T microprocessor core with
separate 16 Kbyte 64-way set-associative instruction and data caches is augmented by the MaverickCrunchTM
co-processor. The proprietary MaverickKeyTM unique hardware programmed IDs provide an excellent solution to
the growing concern over secure Web content and commerce.
The ARM920T on the EP9312/EP9315 functions
with a maximum operating clock rate of 200MHz. A
high performance 1/10/100 Mbps Ethernet Media
Access Controller (EMAC) is included along with
external interfaces to SPI and I2S Audio,
Raster/LCD (with touch screen interface), IDE
storage peripherals, and keyboard or keypad
peripherals. A three-port USB host and three
UARTs are included as well.
The NK9312 Evaluation Board is a convenient and
easy-to-operate evaluation platform. The NK9312
EVB provides the user with the ability to evaluate
the EP9312/EP9315 capabilities; image quality and
NK9312 Evaluation Board with EP9312 Processor
feature set that is delivered through a system oriented evaluation development board. Peripheral devices such as an
IDE interface, VGA, LCD interface, video encoder, USB ports, analog audio input, analog audio output, AC97
codec, 10/100 Ethernet, RS-232, and PS-2 keyboard interface provide an effective way to evaluate the
EP9312/EP9315 in a complete system environment. The board with EP9315 processor has a PCMCIA interface on
the rear of the board which supports one 16-bit PCMCIA PC Card to add memory, mass storage and I/O capabilities
to computer systems and thus can be used to further broaden the options of a designer's platform while with
EP9312 processor will not support. The LCD and Raster interface of EP9315 is with a graphics accelerator which is
used in the system to off load graphics operations from the processor.
The software included with the development kit is WINCE.net 4.2 BSP / Embedded Linux 2.4.21 source code and a
download utility. The WINCE.net BSP source code provides the user with the ability to test some of the subsystems
such as IDE interface, LCD/VGA, Ethernet, PS/2, UART, USB Host, IIS, AC97, etc. on the NK9312 Evaluation
Board. What we provide along with embedded Linux 2.4.21 kernel source code are redboot, QT demo and Linux
cross-compilation tool chain. The download utility provides a means to program a binary image into the flash
memory on the NK9312 Evaluation Board.
www.armkits.com
Moreover an optional LCD display with touch-screen hardware is available for this development board and can be
easily connected to an existing interface. Source code of WinCE.net 4.2 BSP for this device is also provided.
NK9312 Evaluation Board with EP9315 processor and a PCMCIA interface on the rare of the board
Application Development
The NK9312 Evaluation Board is an ideal platform on which to develop application code for an ARM920T
processor target. The Embest Integrated Development Environment is an inexpensive, full-featured development
tool that runs under Windows, providing an excellent software development capability for any sized initial
application. After building your image, you can use one of Embests' JTAG In Circuit Emulation tools or Flash
Programmer to download the image onto the NK9312 Evaluation Board.
Optional Development Tools
Integrated Development Environment: The IDE includes editor, GNU ARM compiler, debugger, project
manager, Flash Programmer, simulator and JTAG emulator. It supports all ARM7 and ARM9 processor
families, runs under Windows and supports both ANSI C and ARM assembly language.
Flash Programmer: A powerful tool for programming on-chip or external flash memory. It supports all targets
based on ARM7 and ARM9 core processors and virtually nearly all manufacture's flash chips.
ARM Emulator: A standard parallel port JTAG Emulator for the ARM processor.
PowerICE: An enhanced parallel port JTAG Emulator that operates at 120Kbs.
UnetICE: This ICE connects to your USB or Ethernet port to the ARM JTAG interface, allowing both flash
programming and debugging (up to 800kbps).
www.armkits.com
Hardware Description
The Cirrus Logic EP9312 processor consists of 32-bit RISC (ARM920T) CPU core, separate 16KB
instruction cache and 16KB data cache, MMU to handle virtual memory management, EIDE, Ethernet, three-port
USB2.0 host, three UARTs, IrDA Interface, LCD& touch screen interface, SPI port, AC97 interface, IIS interface,
32-bit SDRAM interface, 32/16/8 SRAM/Flash/ROM interface, Serial EEPROM interface, Real-time clock with
software trim, 12-ch DMA, Boot ROM, Dual PLLs control all clock domains, Watchdog timer, 16 enhanced GPIOs
including interrupt capability and 31 additional optional GPIOs multiplexed on peripherals. The EP9315 processor
has all features of EP9312 and additionally its peripheral devices include a PCMCIA interface while EP9312 is
without.
The NK9312 Evaluation Board exposes many of these features to the user in support of developing specific
solutions. This board is characterized as follows:
Dimensions: 140x200mm
Processor: Cirrus Logic EP9312 based on 32-bit ARM920T core microcontrollers (optional for EP9315)
Power input: DC12.0V
32M NOR Flash Memory
64M 32bit SDRAM
12 CHANNELS DMA
LCD Display and Touch-Screen interface
Analog VGA connection
Composite Video and S-Video Output Connections
IDE Interface
Triple Port USB Host
20pin standard JTAG interface
Real-Time Clock
I2S Interface
AC97 Module
8*8 Keyboard interface
PS/2 Interface
3 UARTs. One is RS485, and the other two are RS232.
10/100Mbps Ethernet Interface
PCMCIA interface (for EP9315)
www.armkits.com
EP9312 Block Diagram
EP9312 Block Diagram
EP9315 Block Diagram
EP9315 Block Diagram
www.armkits.com
EP9312 Main Data Paths
EP9312 Main Data Paths
Embest NK9312 Main Interfaces Introduction
www.armkits.com
Connect to PC
(VGA 800x600x16bitx75fps, 80G Hard disc, USB, keyboard, mouse, WINCE, website view)
Connect to TV
ARM920T Block Diagram
www.armkits.com
Software Description
The software included with the development kit are WINCE.net 4.2 BSP / Embedded Linux 2.4.21 kernel and
a download utility. All of that are in source code. The WINCE.net BSP provides the user with the ability to test
some of the subsystems such as IDE interface, LCD/VGA, Ethernet, PS/2, UART, USB Host, IIS, AC97, etc. of the
NK9312 Evaluation Board. What we provide along with Embedded Linux 2.4.21 kernel are drivers, redboot and
Linux cross-compilation tool chain.
More information of software resource provided can be found at the following details:
WinCE.net 4.2 BSP (all in source code), it includes:
Eboot for WinCE
Hardware drivers, include:
ATAPI/IDE driver
Accelerated Display driver
Flat Display driver
Ep931x Internal Ethernet Debug driver
PS/2 keyboard driver
Cherry keyboard/Keypad driver
Serial mouse driver
Serial driver
Wave device driver
Internal Ethernet NDIS driver
www.armkits.com
USB driver
ARM Linux for EP9312/EP9315 kernel 2.4.21 (source code)
Linux Cross-Compiler tool chain 2.95.3
Redboot for Linux
Drivers under Linux (all in source code)
PC Downloader
Order Information
NK9312 Evaluation Board Kit contains an NK9312 Evaluation Board, complete development tools and software
resource in a low price.
Order No. EBD2_1 EBD2_2
Item NK9312 Evaluation Board
Description Board with EP9312 processor Board with EP9315 processor
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