AN2903 Datasheet: Application Note





AN2903 Application Note Datasheet

Part Number AN2903
Description Application Note
Manufacture Motorola
Total Page 20 Pages
PDF Download Download AN2903 Datasheet PDF

Features: Freescale Semiconductor Application Note AN2903 Rev. 6, 10/2007 MSC8126 Desig n Checklist by Tina Redheendran www.Da taSheet4U.com This application note pro vides a set of recommendations to assis t you in a first-time design with the M SC8126 device. This document can also b e useful as a general guideline for des igning new systems because it highlight s the aspects of a design that merit sp ecial attention during initial system s tart-up. CONTENTS 1 1.1 1.2 2 3 4 4.1 4.2 4.3 5 6 6.1 6.2 6.3 6.4 7 8 9 Getti ng Started............................. ................................1 Pin A ssignments ............................ ..............................1 Configu ring Reset Parameters ................. ....................2 Power ........... ....................................... .........................4 Clocks ..... ....................................... ..............................5 Reset . ....................................... ....................................5 Power-On-Reset Circuit....

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Freescale Semiconductor
Application Note
AN2903
Rev. 6, 10/2007
MSC8126 Design Checklist
by Tina Redheendran
www.DataSheet4U.com
This application note provides a set of recommendations to
assist you in a first-time design with the MSC8126 device. This
document can also be useful as a general guideline for
designing new systems because it highlights the aspects of a
design that merit special attention during initial system start-up.
1 Getting Started
During the first phase of designing a system with the MSC8126
device, your main tasks are to make the pin assignments and
configure the reset parameters. Before you get started, you
should be familiar with the available documentation, silicon
revisions, software, models, and tools. Refer to Section 9,
Related Reading, on page 18.
1.1 Pin Assignments
CONTENTS
1 Getting Started.............................................................1
1.1 Pin Assignments ..........................................................1
1.2 Configuring Reset Parameters .....................................2
2 Power ...........................................................................4
3 Clocks ..........................................................................5
4 Reset ............................................................................5
4.1 Power-On-Reset Circuit...............................................5
4.2 Reset Configuration Pins .............................................6
4.3 Boot..............................................................................7
5 Bit and Byte Lane Ordering.........................................8
6 Memory .......................................................................9
6.1 60x Bus Signals and Memory Transactions ................9
6.2 BADDRx in 60x Mode ..............................................10
6.3 Bank Selects Versus Address Lines...........................10
6.4 Bank Versus Page Interleaving..................................10
7 EOnCE/JTAG Interface.............................................10
8 Signal Terminations...................................................12
9 Related Reading.........................................................18
Some MSC8126 pins are multiplexed, depending on the device
programming. Take care in programming MSC8126 registers to
configure these multiplexed pins as needed for your system
design. A signal function should be routed to a single pin, so
any other pins providing that signal functionality should have it
turned off. Pin multiplexing is configured in the following
registers:
• Hard Reset Configuration Word (HRCW)
• SIU module configuration register (SIUMCR)
• Memory controller registers ORx and BRx
• GPIO port registers.
© Freescale Semiconductor, Inc., 2004, 2007. All rights reserved.

                    
                    






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