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Document:	NVRAM Module (PMTNV-AA) Owner's Guide
Order Number:	EK-TNVRM-OG
Revision:	A01
Pages:	11
Original Filename:

OCR Text

NVRAM Module (PMTNV–AA)
Owner’s Guide
Order Number: EK–TNVRM–OG. A01

First Printing, February, 1993
The information in this document is subject to change without notice and
should not be construed as a commitment by Digital Equipment Corporation.
Digital Equipment Corporation assumes no responsibility for any errors that
may appear in this document.
The software described in this document is furnished under a license and may
be used or copied only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment
that is not supplied by Digital Equipment Corporation or its affiliated
companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is
subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
Technical Data and Computer Software clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1993.
All Rights Reserved.
Printed in U.S.A.
The postpaid Reader’s Comments forms at the end of this document request
your critical evaluation to assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation:
DEC, DECwindows, TURBOchannel, VAX DOCUMENT, and the DIGITAL logo.
All other trademarks and registered trademarks are the property of their
respective holders.
FCC NOTICE: This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in
a residential area is likely to cause harmful interference, in which case users
will be required to correct the interference at their own expense.
S2146

This document was prepared using VAX DOCUMENT, Version 2.1.

Purpose of This
Guide

This guide is for anyone who is seeking general information
on the NVRAM TURBOchannel module (PMTNV–AA). This
information is independent of hardware platform. For hardware
installation information, see your hardware options guide.
This guide provides the following information:

Conventions in
This Guide

•

Description of the module

•

Module testing procedure

•

Battery specifications

The following conventions are used in this guide:

lowercase

Lowercase monospaced letters indicate a
command that you must enter exactly as
shown. For example: ioread.

NOTE:

Notations provide information to help you
understand how your system works with the
module.

Description of the Module

Description of the Module
Purpose of the
Module

The NVRAM module (PMTNV–AA) is a TURBOchannel module
that provides 1 megabyte of nonvolatile RAM storage for
applications requiring it. The module contains a lithium battery
for memory retention, and occupies one slot in the system unit or
TURBOchannel expansion box.

Operating
System

The NVRAM module is compatible with the DEC OSF/1
operating system.

Limitations

Only one module should be used per system.

Illustration

The NVRAM module is shown in Figure 1.
Figure 1 NVRAM Module (PMTNV–AA)

MLO-010249

Description of the Module

Indicators and
Push Button

The module bulkhead contains three indicators
and a battery
test push button , as shown in Figure 2 and explained in
Table 1.

Figure 2 Indicators and Battery Test Push Button

1
2
MLO-010250

Table 1 Module Indicators
Position

Color

Function

Left

Green

Indicates that battery is connected and
ready.1

Middle

Green

When the battery test button is pushed,
this indicator shows that the battery is
connected and ready. This indicator is
functional even when the module is not
installed in a system.

Right

Red

Indicates that the battery needs
replacing.2 This indicator activates when
the battery voltage falls to 2.5.

1 This green indicator will be on when the system is first turned on.
2 This red indicator will normally flash momentarily when the system is first

turned on.

Installation of Module

Installation of Module
See Options
Guide

See the options guide that came with your workstation for
installation instructions.

CAUTION:
Module
Damage

To avoid damage from static discharge, make sure that you wear
an antistatic wrist strap. Instructions for use are on the strap
envelope.

IMPORTANT:
Grounding
Module

When installing a module inside a system or expansion box,
make sure that you use the screws that came with the system or
expansion box to fasten the module to the enclosure.

Confirming Proper Installation
Procedure

To confirm that the module is installed properly, do the following:
1. Turn on the monitor and peripheral devices connected to the
system unit.
2. Turn on the system unit.
3. Refer to the documentation that came with your workstation
to make sure that PMTNV appears in the configuration display
and that no errors are reported.
If the module does not appear in the configuration display,
move the module to another slot. If the module still does
not appear in the configuration display, contact your Digital
service representative.

Startup Test

When your system is first turned on, startup testing is
performed. The NVRAM module participates in that testing.
Startup testing for this module is about 15 seconds.

Running Self-Tests

Running Self-Tests
Self-Tests are optional tests that can be run to ensure that the
module is working properly. Self-tests are run in console mode.

Command
Format

The format of the command for running a test is t tc# testname.
For example, for a module residing at TURBOchannel slot 2, to
run the csr test, type the following at the prompt:
>>> t tc2 csr

Available
Module Tests

Tests include:
•

address - Test to insure all address lines are checked, and
that none are tied together or open

•

csr - Test of read/write capability in the CSRs

•

battery - Test for proper connection and disconnection of the

battery

•

dma - Test of DMA burst functionality

•

ioread - Test of read/write transactions for entire memory

NOTE: Testing Time
The ioread test takes approximately 45 seconds to run.

Running Self-Tests

Power Down
Data Integrity
Test

The power down data integrity test (pddi) tests the ability of the
module battery to preserve SRAM data after system power is
turned off. To run this test, do the following:
1. Type "set diag_section 3" and press Return .
2. Type t tc# pddi, where # is the TURBOchannel slot number,
and press Return .
3. Turn the system power off.
4. Turn the system power on.
5. Type "set diag_section 3" and press Return .
6. Type t tc# pddi read, where # is the TURBOchannel slot
number, and press Return .

Available
Scripts

Scripts are groups of tests. They provide a convenient way to run
related tests consecutively. They are run using the same format
as the individual tests, or they can be set by the environment
variable testaction, so that one of them runs automatically at
startup.
Scripts include:
•

pst-t - "thorough" mode, runs cdru1 , csr, battery, address,
dma, and ioread tests

•

pst-q - "quick" mode, runs cdru1 , csr, battery, and dma

•

tests

pst-m - "manufacturing" mode, runs cdru1 , csr, battery,
address, dma, and ioread tests

cdru is not a test; it serves to clear the diagnostic register.

Appendix A: Battery Information

Table 2 Battery Information
Type

200mAh lithium primary

Shelf Life

10 years (estimated)

Life with system power on and
battery disconnected or connected

10 years (estimated)

Life with system power off and
battery disconnected

2.7 years (estimated)

Life with system power off and
battery connected

9.7 months (estimated)

Reader’s Comments

NVRAM Module (PMTNV–AA)
Owner’s Guide
EK–TNVRM–OG. A01

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