Vaisala MPU112 Manuel d'utilisation et d'entretien
TECHNICAL REFERENCE
Main Processor Unit
MPU112
M210829EN-A
PUBLISHED BY
Vaisala Oyj Phone (int.): +358 9 8949 1
P.O. Box 26 Fax: +358 9 8949 2227
FIN-00421 Helsinki
Finland
Visit our Internet pages at http://www.vaisala.com/
© Vaisala 2007
No part of this manual may be reproduced in any form or by any means, electronic or
mechanical (including photocopying), nor may its contents be communicated to a third
party without prior written permission of the copyright holder.
The contents are subject to change without prior notice.
Please observe that this manual does not create any legally binding obligations for
Vaisala towards the customer or end user. All legally binding commitments and
agreements are included exclusively in the applicable supply contract or Conditions of
Sale.
________________________________________________________________________________
VAISALA ________________________________________________________________________ 1
Table of Contents
CHAPTER 1
GENERAL INFORMATION............................................................................ 3
About This Manual ................................................................... 3
Contents of This Manual ....................................................... 3
Feedback............................................................................... 4
Safety......................................................................................... 4
General Safety Considerations ............................................. 4
ESD Protection...................................................................... 5
Recycling .................................................................................. 5
CHAPTER 2
PRODUCT OVERVIEW.................................................................................. 7
Introduction to MPU112 Main Processor Unit....................... 7
CHAPTER 3
FUNCTIONAL DESCRIPTION....................................................................... 9
PC Core module ....................................................................... 9
Flash Disk ............................................................................... 10
CHAPTER 4
SYSTEM LOGIC PLD................................................................................... 11
Programmable Logic Device (PLD) ...................................... 11
ISA Bus Interface ................................................................ 12
Address Decoders............................................................... 12
Serial Channels 3 and 4...................................................... 13
Interrupt Line Selectors ....................................................... 13
ARCNET Filter .................................................................... 13
Data Output Registers......................................................... 13
Device Registers and Slot/Rack Codes .............................. 13
CHAPTER 5
EXTERNAL COMMUNICATION INTERFACES.......................................... 15
Ethernet Controller................................................................. 15
Ethernet Switch ...................................................................... 16
ARCNET Line Interface.......................................................... 17
Serial Channels ...................................................................... 18
CHAPTER 6
SUPPORT LOGIC ........................................................................................ 19
Reset Circuit ........................................................................... 19
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PLL Clock Multipliers .............................................................19
Voltage Regulators.................................................................20
Test Input.................................................................................20
LED Lamp................................................................................20
CHAPTER 7
TEST PROGRAM .........................................................................................21
Test Program Overview .........................................................21
CHAPTER 8
TECHNICAL DATA ......................................................................................23
Control Processor ..................................................................23
General ....................................................................................24
Connector Signal Layout .......................................................25
CHAPTER 9
DIAGRAMS AND BOARD LAYOUTS .........................................................27
Main Processor MPU112........................................................27
CHAPTER 10
PARTS LIST .................................................................................................37
APPENDIX A
CONNECTOR SIGNAL LIST........................................................................41
APPENDIX B
FRONT PANEL CONNECTORS..................................................................45
COM1 Connector ....................................................................45
ETH1 and ETH2 Connectors..................................................45
APPENDIX C
LIST OF SIGNALS .......................................................................................47
Chapter 1 ________________________________________________________ General Information
VAISALA ________________________________________________________________________ 3
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the product.
About This Manual
This manual provides information for the Vaisala Main Processor Unit
MPU112.
Contents of This Manual
This manual consists of the following chapters:
- Chapter 1, General Information, provides general notes for the
product.
- Chapter 2, Product Overview, explains the operation and basic
structure of the Vaisala Main Processor Unit MPU112.
- Chapter 3, Functional Description, describes the functionality of
the product.
- Chapter 4, System Logic PLD, provides information about the
Programmable Logic Devices of the MPU112.
- Chapter 5, External Communication Interfaces provides
information about the Ethernet and ARCNET local area network
interfaces and about asynchronous serial channels.
- Chapter 6, Support Logic describes the support logic blocks and
voltage regulators.
- Chapter 7, Test Program describes the test program operation.
- Chapter 8, Technical Data contains the MPU112 technical
specifications.
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- Chapter 9, Diagrams and Board Layouts, contains the technical
drawings.
- Chapter 10, Parts List lists the MPU112 parts.
- Appendix A, Connector Signal List contains the system connector
signal list.
- Appendix B, Front Panel Connectors describes the MPU112
connectors.
- Appendix C, List of Signals lists the signals used in the MPU112.
Feedback
Vaisala Customer Documentation Team welcomes your comments
and suggestions on the quality and usefulness of this publication. If
you find errors or have other suggestions for improvement, please
indicate the chapter, section, and page number. You can send
Safety
General Safety Considerations
Throughout the manual, important safety considerations are
highlighted as follows:
WARNING Warning alerts you to a serious hazard. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or
even death.
CAUTION Caution warns you of a potential hazard. If you do not read and
follow instructions carefully at this point, the product could be
damaged or important data could be lost.
NOTE Note highlights important information on using the product.
Chapter 1 ________________________________________________________ General Information
VAISALA ________________________________________________________________________ 5
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage
to electronic circuits. Vaisala products are adequately protected
against ESD for their intended use. However, it is possible to damage
the product by delivering electrostatic discharges when touching,
removing, or inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
- Handle ESD sensitive components on a properly grounded and
protected ESD workbench. When this is not possible, ground
yourself to the equipment chassis before touching the boards.
Ground yourself with a wrist strap and a resistive connection cord.
When neither of the above is possible, touch a conductive part of
the equipment chassis with your other hand before touching the
boards.
- Always hold the boards by the edges and avoid touching the
component contacts.
Recycling
Recycle all applicable material.
Dispose of batteries and the unit according to statutory regulations.
Do not dispose of with regular household refuse.
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Chapter 2 __________________________________________________________ Product Overview
VAISALA ________________________________________________________________________ 7
CHAPTER 2
PRODUCT OVERVIEW
This chapter explains the operation and basic structure of the Vaisala
Main Processor Unit MPU112.
Introduction to MPU112 Main Processor Unit
The MPU112 is an E1-sized module that controls the system functions
and external communication. It comprises an E1-sized main circuit
board and a Computer Module which is installed on the Carrier Board.
The Computer Module is a PC-compatible core module. It contains a
PC-compatible CPU and basic PC interfaces, from which the COM1
and COM2 communication ports are used in MPU112.
The Carrier Board contains an Ethernet communication interface, a
Compact Flash type disk memory, a Programmable Logic Device
(PLD), two serial communication channels (in addition to COM1 and
COM2), ARCNET type local area network, and a battery for the
calendar clock of the CPU.
The Ethernet communication interface consists of an Ethernet
controller and a five channel Ethernet switch. The four switch
channels are available for external connections at 10 or 100 Mbit/s
line speed.
The Compact Flash disk memory is a 1 GB ATA/IDE compatible
device.
All timing and interface logic functions are implemented in
Programmable Logic Device (PLD). The configuration (program)
code of the PLD is stored in the program memory of the CPU, and the
configuration takes place during system start-up.
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Serial communication channels COM1-4 are used for external
communication. The COM1-2 channels are from Computer module
and COM3-4 channels are from PLD logic.
ARCNET type local area network is used for the connection to other
sounding system units.
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