Overview
Communications through the USB port
have become a standard feature on almost
every new personal computer. The USB
to SPI interface evaluation boards are
working hardware/software examples
that allow a user to become familiar
with the MC68HC908JW32. Freescale’s
MC68HC908JW32 is a USB 2.0 full speed
8-bit microcontroller unit (MCU). This
evaluation board contains a USB to SPI
and USB to parallel converter to provide a
standardized serial computer interface that
allows simplified attachment of peripherals.
The main function provided by this demo
board is to allow a PC that may not have
a parallel port, to communicate with other
Freescale evaluation boards, via a USB port.
This kit makes use of the MC68HC908JW32’s
built-in USB, SPI and parallel ports.
The board supports programming of the
MC68HC908JW32 through a MON08
connector/port.
Analog and Mixed-Signal Fact Sheet
USB to SPI Interface Board
Featuring the MC68HC908JW32
USB to SPI Interface Block Diagram
FROM P&E
OR FICE
MC68HC908JW32
MCU
FROM PC
MON08
USB
MCU SUPPORT
CIRCUITRY
SPI
Parallel Outputs
Jumper
Select
Matrix
LED's
DB 25
Features
• USB to SPI converter
• USB to parallel converter
• Reprogramming capability for the
MC68HC908JW32, through the
MON08 port.
• Uses Freescale’s PC based
SPIGen software
• MC68HC908JW32 MCU is available
with a variety of memory sizes and types,
modules and package types
Applications
• Engineering development for the
MC68HC908JW32 as well as SPI-based
analog products
• Diagnostics and testing
• Device evaluation
Analog and Mixed-Signal
Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product
or service names are the property of their respective owners.
© Freescale Semiconductor, Inc. 2007
Document Number: USBSPIFS
Rev 0
Learn More: For more information about Freescale
products, please visit
www.freescale.com/analog.
Development Tools
Part Number Description Pricing
KITUSBSPIEVME USB to SPI Interface board featuring
the MC68HC908JW32 MCU
$88.50
KITUSBSPIDGLEVME USB to SPI Interface board featuring
the MC68HC908JW32 MCU configured
as a USB dongle
$50.00
Evaluation Kit Contents:
• Assembled and tested evaluation board
in anti-static bag
• USB A to USB B cable
• CD-ROM containing:
Instructions
EVB setup diagram
Schematic drawing
Assembly drawing
PCB—top copper
PCB—bottom copper
Bill of materials
SPIGen 5.0.1 installation program
(setup.exe)
Object code for programming
MC68HC908JW32
Freescale Semiconductor is a leading provider
for over 25 years of high-performance
products that use SMARTMOS™ technology
that combines digital, power and standard
analog functions. The company supplies
analog and power management ICs for
the automotive, consumer, networking and
industrial markets. Freescale’s analog and
power ICs complement our broad portfolio of
microcontrollers, microprocessors, ZigBee®
technology, digital signal processors, sensors,
development tools and support to offer
system solutions to customers.
KITUSBSPIEVME KITUSBSPIDGLEVME
