Freescale provides the enclosed product(s) under the following conditions:
This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES
ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs,
outputs, and supply terminals. This EVB may be used with any development system or other source of I/O
signals by simply connecting it to the host MCU or computer board via off-the-shelf cables. This EVB is not a
Reference Design and is not intended to represent a final design recommendation for any particular
application. Final device in an application will be heavily dependent on proper printed circuit board layout and
heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality.
The goods provided may not be complete in terms of required design, marketing, and or manufacturing related
protective considerations, including product safety measures typically found in the end product incorporating
the goods. Due to the open construction of the product, it is the user's responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. In order to minimize risks associated with the
customers applications, adequate design and operating safeguards must be provided by the customer to
minimize inherent or procedural hazards. For any safety concerns, contact Freescale sales and technical
support services.
Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from
the date of delivery and will be replaced by a new kit.
Freescale reserves the right to make changes without further notice to any products herein. Freescale makes
no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor
does Freescale assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages.
“Typical” parameters can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typical”, must be validated for each customer application by customer’s
technical experts.
Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are
not designed, intended, or authorized for use as components in systems intended for surgical implant into the
body, or other applications intended to support or sustain life, or for any other application in which the failure
of the Freescale product could create a situation where personal injury or death may occur.
This evaluation board allows the user to implement the functionality of the MC33903 product System
Basis Chip (SBC).
This EVB includes one I/O test point that can be configured to be pulled up to V
GND through a resistor and indicator LED. It is easily configured via jumper settings. The SBC can also
be exercised in debug mode (watchdog re-fresh/monitoring not needed) by simply populating a jumper.
Specified resistor pull-downs can be implemented on the DBG and MUX pins via simple jumper
configurations. The status of I/O0, 5V_CAN, SAFE, and VDD can be visually monitored via on-board
LEDs. The CAN and LIN Bus signals are provided through terminal block connectors.
An isolated terminal block connector is implemented to provide power to the evaluation board with an
external DC power supply.
The evaluation boards are operated through the graphical user interface (GUI) paired up with the SPI
dongle board (KITUSBSPIDGLEVME) through the 2x8 pin ribbon cable. Additionally, for added flexibility,
the user can implement a custom board with a microcontroller to talk to the SBC via the 16 pin header.
3.1EVB Features
•Nominal operating supply voltage range of 5.5 to 27 V
•5.0 V/3.3 V regulator for the MCU with an external PNP ballast transistor to increase current capability
•Multiple CAN Bus termination options supported via socket
•One high/low side I/O (SPI configurable) accessible through a test point
•Status of I/O0 indicated by LED (dependent on jumper configuration)
•Debug mode/watchdog configuration via jumper settings
•MUX output voltage accessible through a test point and external resistor selectable through a jumper
•I_WAKE_I test point to enable a FET and load VDD with current to wake-up the SBC
•LIN1_T and LIN2_T test points to monitor I/O voltages (SPI configurable)
•I/O0, 5V_CAN, SAFE, and VDD status indicated by LED
•100 mil 2x8 pin standard header connector for SPI communication
•100 mil 16 pin standard header connector for custom MCU board connection
or pulled down to
SUP
KIT33903 Evaluation Boards, Rev. 1.0
4Freescale Semiconductor
3.2Device Description/Features
•Protected 5.0 or 3.3 V regulator for the MCU (part number selectable) with optional external PNP
usage to increase current capability for MCU
•Fully-protected embedded 5.0 V regulator for the CAN driver
•Extremely low quiescent current in low power modes
•Multiple under-voltage detections to address various MCU specifications and system operation
modes (i.e. cranking)
•Multiple wake-up sources in low power modes: CAN or LIN bus, I/O transition, automatic timer, SPI
message, and VDD over-current detection
•Voltage, current, and temperature protection with enhanced diagnostics that can be monitored by the
system via a MUX output
•ISO11898-5 high speed CAN interface compatibility for baud rates of 40 kb/s to 1.0 Mb/s. LIN 2.1 and
J2602 LIN interface compatibility
•Pb-free packaging designated by suffix code EK
4Required Equipment
Required Equipment
4.1Minimum Required Equipment
•Power supply: minimum 5.5 V and 200 mA current
•Any piece of equipment/board that is capable of producing TXD and/or CAN and LIN messages
The KIT33903BD5EVBE/KIT33903BD3EVBE operates with a single 5.5 V minimum power supply and
can be driven with the KITUSBSPIDGLEVME along with its GUI. For added flexibility, it is also possible
to develop a custom board to drive this evaluation board via the 16 pin standard header.
6.1Board Implementation
For Standard EVB configuration, set up the jumpers as shown on Figure 3. If the jumper configuration is
in accordance with Jumper Connections, on page
ON at startup. If CAN communication will be exerc
the necessary components to implement the chosen CAN Termination as shown on Figure
Hardware Configuration
8, the VDD (D3) and the 5V_CAN (D4) LEDs must be
ised, populate the CAN termination socket (J13) with
4.
Figure 3. Manual Mode Jumper Settings
KIT33903 Evaluation Boards, Rev. 1.0
Freescale Semiconductor7
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