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Document:	MicroVAX 3600 VAXserver 3600/3602 Technical Information
Order Number:	EK-O35AB-IS
Revision:	002
Pages:	130
Original Filename:	EK-O35AB-IS-002_MicroVAX_3600_VAXserver_3600_3602_Technical_Information_Jul1988.pdf

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MicroVAX 3600
VAXserver3600/3602
Technical Information
Order Number EK-035A6—IS-002

digital equipment corporation
maynard, massachusetts

September 1987
July 19ss
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, if any, 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
or equipment that is not supplied by Digital Equipment Corporation or its affiliated companies.
Copyright ©1987, 1988 by Digital Equipment Corporation.
All Rights Reserved.
Printed in U.S.A.
The READER'S COMMENTS form on the last page of this document requests the user's critical evaluation to
assist in preparing future documentation.
The following are trademarks of Digital Equipment Corporation:

MASSBUS
MicroVAX
PDP
P/OS
Professional
Q-bus
Rainbow
ReGIS
RSTS
RSX
RT

ThinWire
ULTRIX
UNIBUS
VAX
VAXcluster
VAXELN
VAXIab
VMS
VT
Work Processor

d GeBO

TM
a

COMPACTape
DEC
DECmate
DECnet
DECserver
DECUS
DECwriter
DELNI
DEQNA
DESTA
DIBOL

Amphenol is a trademark of Amphenol Corporation.
Bell is a trademark of Bell telephone companies.
CHAMP is a registered trademark of AMP Inc.
POSTSCRIPT is a registered trademark of Adobe Systems Incorporated.

Proprinter is a trademark of International Business Machines Corporation.
TEKTRONIX is a registered trademark of Tektronix, Inc.
ML-S987
FCC NOTICE: The equipment described in this manual generates, uses, and may emit radio frequency
energy. The equipment has been type tested and found to comply with the limits for a Class A computing
device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection
against such radio frequency interference when operated in a commercial environment. Operation of this
equipment in a residential area may cause interference, in which case the user at his own expense may be
required to take measures to correct the interference.

Contents
Preface

vii

Chapter 1 Base System Specifications
1.1
Base System Operation
1.1.1
KA650 Firmware
1.1.2
CPU Cover Panel Operation
1.1.2.1
Switches
1.1.2.2
LED Display
1.1.2.3
Connectors
1.1.2.4
Battery Backup Unit (BBU)
1.2
Base System Specifications
1.2.1
KA650—AA/BA Processor Specifications
1.2.2
MS650 Memory Options
1.2.2.1
MS650—AA

1-1
1-1
1-3
1-4
1-7
1-7
1-8
1-8
1-8
1-11
1-11

Chapter 2 Option Specifications
2.1
Mass Storage Options
2.1.1
Disk Drives and Controllers
2.1.1.1
KDA50 Controller
2.1.1.2
RA60 Disk Drive
2.1.1.3
RA70 Disk Drive
2.1.1.4
RA81 Disk Drive
RA82 Disk Drive
2.1.1.5
2.1.2
Tape Drives and Controllers
2.1.2.1
KLESI Controller
2.1.2.2
TU 81—Plus Tape Drive
2.1.2.3
TSV05 Tape Drive Controller
2.1.2.4
TS05 Tape Drive

2-2
2-2
2-2
2-3
2-5
2-6
2-8
2-11
2-11
2-12
2-14
2-15

iii

2.1.2.5
TQK70 Controller
TK70 Tape Drive
2.1.2.6
2.2
Communications Options
Asynchronous Serial Controllers
2.2.1
2.2.1.1
CXA16 Asynchronous Multiplexer (16 lines)
2.2.1.2
CXB16 Asynchronous Multiplexer (16 lines)
CXY08 Asynchronous Multiplexer (8 lines)
2.2.1.3
DFA01 Asynchronous Controller with Integral Modem
2.2.1.4
DSRVB DECserver 200
2.2.1.5
2.2.2
Synchronous Serial Controllers
2.2.2.1
DPV11
2.2.2.2
KMV1A Programmable Communications Controller
Network Controllers
2.2.3
2.2.3.1
DELQA Ethernet Controller
Real-Time Controllers
2.3
DRQ3B Parallel Interface
2.3.1
2.3.2
DRV1W Parallel Interface
IEQ11 Controller
2.3.3
IBQ01 Controller
2.3.4
AAV11-S Digital-to-Analog Converter
2.3.5
ADV11-S Analog-to-Digital Converter
2.3.6
KWV11-S Programmable Real-Time Clock
2.3.7
AXV11 Controller
2.3.8
ADQ32 Analog-to-Digital Converter
2.3.9
MRV11-D Programmable Read-Only Memory Module
2.4
Printer Options
2.5
2.5.1
Line Printer Subsystems
LPV11-SA Printer Interface
2.5.1.1
LGO1 Text Printer
2.5.1.2
LG02
Text and Graphics Printer
2.5.1.3
2.5.1.4
LG31 Printer
LP29 Printer
2.5.1.5
2.5.2
Dot Matrix Printers
2.5.2.1
LA75 Companion Printer
2.5.2.2
LA100 Letterwriter
2.5.2.3
LA120 Printer/Terminal (DECwriter III)

2-17
2-18
2-21
2-21
2-21
2-24
2-27
2-30
2-31
2-35
2-35
2-36
2-39
2-39
2-41
2-41
2-42
2-44
2-46
2-48
2-50
2-53
2-56
2-59
2-63
2-65
2-65
2-65
2-66
2-68
2-70
2-72
2-75
2-75
2-78
2-80

2.5.2.4
2.5.3
2.5.3.1
2.5.3.2
2.5.4
2.5.4.1
2.5.5

LA210 Letterprinter
Letter-Quality Printers
LQP02 Printer
LQP03 Printer
Ink Jet Printers
LJ250/LJ252 Companion Color Printers
Laser Printers

Chapter 3
3.1

2-82
2-85
2-85
2-8 7
2-91
2-91
2-95

System Expansion

Determining Expansion Capacity

3-1

Index
Figures
1-1
1-2
3-1

CPU Cover Panel
Changing the Baud Rate
Configuration Worksheet

1-4
1-6
3-4

Tables
1-1
1-2
3-1

Console Program Boot Sequence
Baud Rates
Power Requirements

1-2
1- ~
3-2

Preface
This manual summarizes technical information about MicroVAX 3600 and
VAXserver 3600/3602 systems. The manual is organized as follows:
•

Chapter 1 describes the base system specifications, including the CPU
module and associated memory options.

•

Chapter 2 describes specifications for optional components available for
MicroVAX 3600 and VAXserver 3600/3602 systems.

•

Chapter 3 contains information on expanding your system.

Conventions
The following convention is used in this book:
Convention

Meaning

Key

A symbol denoting a terminal key used in text and examFor example, Break indicates that you
ples in this book.
Return indipress the Break key on your terminal keypad.
cates that you press the Return key on your terminal keypad.

vii

Chapter 1

Base System Specifications
All MicroVAX/VAXserver 3600 base system components reside in a BA213
enclosure, with a 12-slot backplane. The base system includes a central
processor unit (CPU) module, and one to four MS650 memory modules. The
CPU module resides in slot 1 of the backplane. Memory modules can reside
in slots 2 through 5.

1.1 Base System Operation
Base system operation includes the KA650 firmware and the controls on the
CPU cover panel.

1.1.1 KA650 Firmware
Two read-only memory (ROM) chips on the KA650 module contain firmware.
The firmware contains three major programs:
•

A console program

•

A set of self-tests for the CPU and memory

•

A primary bootstrap program (VMB)

The console program receives control whenever the processor halts. For the
KAC50 CPU, a halt means only that processor control has passed to the
console program, not that instruction execution stops. The standard VAX
console functionality is emulated by executing a program in ROM, rather
than by CPU microcode or a separate console processor.
Control passes to the firmware under any of the following conditions:
•

The system is powered up

•

The Reset button is pressed

•

The Q22-bus BHALT signal is asserted (by pressing in the Halt button or
by pressing the Break key when the Break Enable/Disable switch is set
to enable)

•

Halt button on the front control panel is pressed

Base System Specifications 1-1

•

A HALT instruction is executed

•

A system error occurs

At power-up, the system enters one of three power-up modes that are set
using the Power-Up Mode switch on the CPU cover panel. (The modes and
their meanings are described later in this chapter.) The console program then
determines the console device type and console language.
The console program then runs the self-tests for the CPU and memory. The
message
Performing normal system tests

is displayed on the terminal. As the tests progress, a series of numbers
displays on the console terminal. MicroVAX 3600 VAXserver 3600/3602
Operation describes the power-on sequence and shows examples of successful
power-on operations. MicroVAX Troubleshooting and Diagnostics describes
possible problems that can occur during power-on.
If the self-tests are successful, the system does one of two things, depending
on whether the Break Enable/Disable switch on the CPU cover panel is set
to disable or enable.
If the Break Enable/Disable switch is set to disable, the CPU tries to load
and start (bootstrap) an operating system. It locates a 128-Kbyte segment
of system memory and copies a primary bootstrap program, called VMB,
from the ROM chip into the base address plus 512. The CPU then begins
executing VMB, which attempts to bootstrap an operating system from one
of the devices listed in Table 1-1, in the order shown.

Table 1-1: Console Program Boot Sequence
Controller Type

Controller

Device Name

MSCP (Disk)

KDA50

DJmnl (removable disks)
DUmn (fixed disks)

MSCP (Tape)

TQK70

MUmn

PROM

MRV11

PRAn

Ethernet adapter

DELQA

XQmn

1 m =MSCP controller designator (A = first, B =second, etc.) n =unit number

1-2 MicroVAX 3600 VAXserver 3600/3602 Technical Information

When VMB determines that a controller is present, it searches in order of
increasing unit number for a bootable unit with a removable volume, then
proceeds to the next controller. If it finds none, it will repeat the search for
a nonremovable volume.
If break is enabled, the console program enters console I/O mode in response
to any halt condition except the HALT instruction, including system powerup. Console I/O mode allows you to control the system by typing commands
at the console terminal.
You can direct the system to boot a specific device when in console I/O
mode. Use the BOOT command, followed by the device name as listed
in Table 1-1. For example, to boot from the TK70 tape drive, issue the
command: BOOT MUAO.

1.1.2 CPU Cover Panel Operation
The outside of the CPU cover panel contains the following components, as
shown in Figure 1-1.
•

Break Enable/Disable switch

•

Power-Up Mode switch

•

LED display

•

Modified modular jack for the console terminal serial line unit (SLU)

The inside of the cover panel (shown in Figure 1-2) contains:
•

Baud rate switch (discussed in the next section)

•

Battery backup unit (BBU) for the time-of-year clock and language
selection (see Section 1.1.2.4)

Base System Specifications 1-3

Figure 1-1: CPU Cover Panel

BREAK
ENABLE/DISABLE
SWITCH
POWER-UP MODE
SWITCH
LED
DISPLAY

MODIFIED
MODULAR JACK

TO CONSOLE
TERMINAL

1.1.2.1 Switches
The three switches on the CPU panel are the Break Enable/Disable switch,
the Power-Up Mode switch, and the Baud Rate switch. The operation of
these switches is discussed on the following pages.

1-4 MicroVAX 3600 VAXserver 3600/3602 Technical Information

Break Enable/Disable Switch (2-position slider)
Switch Position

Function

Dot outside
circle (down)

Break disable (factory settin ). With the switch in
this position, pressing the Break key on the console terminal has no effect on the system. On powerup or after a reset, the system attempts to load software from one of the boot devices at the completion of self-tests.

Dot inside
circle (up)

With the switch in this posiBreak enable.
tion, pressing the Break key on the console terminal halts the CPU. On power-up or after a reset, the system enters console I/O mode at the completion of selftests.

Power-Up Mode Switch (3-position rotary)
Switch Position

Mode

Human profile

If the console terminal supLanguage inquiry.
ports Multinational Character Sets (MCS), the
user is prompted for language on every powerFull start-up diagnosup and after a reset.
tics are run.

Arrow

Run (factory setting). If the console terminal supports Multinational Character Sets (MCS), the user is
prompted for language on power-up and after a reset only if the battery backup has failed. Full start-up diagnostics are run.

T in a circle

ROM programs run wraparound serial line
Test.
A loopback connector is reunit (SLU) tests.
quired.

Baud Rate Switch (8-position rotary)
The baud rate switch is located on the inside of the cover panel, as shown
in Figure 1-2. Use the following seven-step procedure to remove the CPU
cover panel and change the baud rate.

Base System Specifications 1-5

Figure 1-2:

Changing the Baud Rate

MLO-1252-87

After turning off the system, open the front door of the cabinet.

Using aPhillips-head screwdriver, push -in and turn counterclockwise the
quarter-turn screws at the top and bottom of the CPU cover panel until
the screws pop free.

Place one hand at the top of the panel, and carefully pull out the bottom
of the panel with the other hand.

When you can grasp the side of the panel, carefully pull out the top of
the panel. Because cables connect the cover panel to the CPU module,
you cannot pull the panel very far from the module.

Carefully turn the panel to the left to expose the baud rate switch. A
number from 0 to 7 is visible. See Table 1-2 to determine the correct
switch setting for the baud rate you want.

1-6

MicroVAX 3600 VAXserver 3600/3602 Technical Information

Table 1--2: Baud Rates
Setting

Baud Rate

300

600

1200

2400

4800

96001

19200

38400

1Factory setting

6. Replace the cover panel by pressing the bottom of the panel back in
position. While firmly holding the bottom in place with one hand, gently
push the top until it locks into position.
7. Push in and turn clockwise the quarter-turn screws at the top and bottom
of the cover panel until the screws are tight.
You can now turn on the system and the new baud rate will be in effect.
1.1.2.2 LED Display
The red LED display on the CPU cover panel displays a numerical sequence
(in hexadecimal numbers) as the system runs its self-test diagnostics and
bootstrap routine. The sequence begins with F (15 in decimal) and ends with
3, if the processor enters console I/O mode (breaks enabled); and ends with
0, if the processor has successfully booted (breaks disabled). Simultaneously,
a countdown appears on the console terminal. See MicroVAX 3 600 VAXserver
3600/3602 Operation for examples of successful power-on sequences, and
MicroVAX Troubleshooting and Diagnostics for examples of problems you may
encounter during power-on.
1.1.2.3 Connectors
The console cable is connected to the CPU cover panel through a modified
modular jack (MMJ). An internal cable connects the MMJ to the CPU module.
A second internal cable connects the switches and LED display to the CPU
module.

Base System Specifications 1-7

1.1.2.4 Battery Backup Unit (BBU
A battery backup unit (BBU), located on the inside of the CPU cover panel,
stores the correct time-of-year and language selection when power to the
system is turned off. Both the time-of-year and language selection code are
lost if the BBU fails. The BBU provides power for up to seven days if the
system power is turned off .

1.2 Base System Specifications
The base system includes the KA650—AA/BA processor and one to four
MS650 memory modules.

1.2.1 KA650—AA/BA Processor Specifications
The KA650—AA is used in MicroVAX 3600 systems. The KA650—BA is used
in VAXserver 3600/3602 systems.
Central Processor
Clock rate

22 MHz

Data path width

32 bits

Number of data types

Hardware: 9
Software emulated: 7

Number of instructions

Hardware: 272
Software emulated: 32

General purpose registers

16 (32-bit wide)

Addressing modes

General register: 8
Program counter: 4
Index: 9

PDP-11 compatibility mode

Emulated in software

Time bases

Time-of-year clock: 1 (battery backed
up)
Interval timer: 1 (10 milliseconds)
Programmable timers: 2

I/O bus interface

Qne Q22-bus interface with 809b entry map

1-8 MicroVAX 3600 VAXserver 3600/3602 Technical Information

Central Processor
Backplane termination

240 ohms

Memory Management and Control
Page size

512 bytes

Virtual address space

4 gigabytes

Physical memory space

64 Mbytes

Number of memory modules

4 maximum

Performance
Instruction prefetch buffer size

12 bytes

First level cache
Size

1 Kbyte

Speed

90 nanoseconds

Associativity

2-way set

Second level cache
Size

64 Kbytes

Speed

180 nanoseconds

Associativity

Direct mapped

Translation buffer
Size

28-entry

Associativity

Fully associative

Q22-bus address translation
map cache
Size

16-entry

Associativity

Fully associative

I/O bus buffer size
Input

32 bytes

Output

4 bytes

Base System Specifications 1-9

Performance
Maximum I/O bandwidth
Block mode DMA read

2.4 Mbytes/second

Block mode DMA write

3.3 Mbytes/second

Console Serial Line
Interface standards

EIA RS-423-A/CCITT V.10 X.26
EIA RS-232-C/CCITT V.28
DEC 423

Data format

1 start bit, 8 data bits, 0 parity bits, 1 stop bit

Baud rates

300, 600, 1200, 2400, 4800, 9600, 19200,
38400

Ordering Information
Included as part of base system
Configuration Information
Form factor

Quad height

Power requirements

+SVdc,6.0A
+12Vdc,0.14A

Power consumption

31.68 W

Bus loads

3.5 ac
1.0 do

Operating System Support
VMS

Version 4.7A and later

ULTRIX-32

Version 2.2 and later

VAXELN

Version 3.0 and later

1-10 MicroVAX 3600 VAXserver 3600/3602 Technical Information

Diagnostic Support
MicroVAX Diagnostic Monitor

Revision 2.11

Self-tests

Yes