Mode. AN2207 Datasheet

AN2207 Datasheet PDF

Part AN2207
Description Using the MPMC8245 Card in Standalone Mode
Feature www.DataSheet4U.com Freescale Semiconductor, Inc. AN2207/D Rev. 2, 6/2003 Using the MPMC8245 Card .
Manufacture Freescale Semiconductor
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AN2207
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Freescale Semiconductor, Inc.
AN2207/D
Rev. 2, 6/2003
Using the MPMC8245 Card
in Standalone Mode
Gary Milliorn
CPD Applications
This application note describes modifications that may be performed to convert the
MPMC8245 ‘Unity’ MPMC or MPMC8241 ‘UnityLC’ MPMC cards in a Sandpoint system
to a standalone operation. An MPMC card normally resides in a Sandpoint motherboard, but
for COP emulator debugging, benchmarking, or other evaluation purposes, the card can be
removed and operated without a Sandpoint motherboard by making a few simple changes to
the board. This application note covers those changes and contains the following topics:
Topic
Section 1, “Introduction”
Section 2, “Required Components”
Section 3, “Standalone Software”
Section 4, “Programming Software”
wwSectwion 5., D“Clocak”taSheet4U.com
Section 6, “Serial Header”
Section 7, “Power Connection”
Section 8, “Mechanical Standoffs”
Section 9, “Operating the Board”
Section 10, “References”
Section 11, “Revision History”
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To locate any published errata or updates for this document, refer to the web site at
http://www.freescale.com/semiconductors.
© Freescale Semiconductor, Inc., 2004. All rights reserved.
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AN2207
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Introduction
Freescale Semiconductor, Inc.
1 Introduction
The Sandpoint microprocessor evaluation system uses MPMC mezzanine cards to allow easy system
customization for various processors. The MPMC8245 ‘Unity’ provides an MPC8245 32-bit embedded
PowerPC™ processor and an integrated memory and PCI interface. These features are also supplied on the
MPMC8241 ‘UnityLC’ module, which is similar enough to the MPMC8245 that it will not be specifically
handled in this document (standalone operation is identical for both).
These are standard features of most MPMC cards, but the MPC8245 also provides a serial port, reset
controller, and oscillator. With these components, an MPMC8245 contains most of the features needed for
a standalone embedded system:
• MPC8245, 300 MHz
• 64–256 MB SDRAM @ 100–133 MHz
• 1 MB + 4 MB flash memory @ 90 ns
• Serial port
• CPU core power supply
• Reset controller
• PCI interface (optional use)
Figure 1 shows the features on the MPMC board available for an embedded system.
Power Connector
Support
Standoffs
(4x)
COP
Core
www.DataSheet4U.comPower
Flash
Status
LEDs (6)
SDRAM
SODIMM
Serial
Port
MPC8245
Reset
Switch
Local Clock
Figure 1. MPMC8245 Features
NOTE
This application note describes the steps needed to convert an MPMC8245
to standalone operation. The changes require some soldering experience
and should not be attempted by inexperienced personnel. In addition, these
changes will void the warranty of the board. However, the changes are
fairly trivial and quite easy to do.
This application note does not generally apply to the MPMC8240 board,
though it is possible. Since the MPC8240 does not have an internal UART,
the ability to run ‘interesting’ software may be severely restricted.
Using the MPMC8245 Card in Standalone Mode
For More Information On This Product,
Go to: www.freescale.com
www.DataSheet4U.com




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