PEP Modular Computers V1553B User manual

V1553B UserÕs Manual Preface
V1553B
MIL-STD-1553InterfaceModule
for the VMEbus
User's Manual
Publication No. 12961
Issue 1
Unpacking and Special Handling Instructions
This PepCard product has been carefully designed for a long and a fault-free life; however, its life expectancy can be
drastically reduced or even diminished to none by improper treatment at the unpacking or first-use stage.
We therefore ask you to read this manual carefully before unpacking the module or fitting it into your VMEbus or
IIOC/Eurobus system.
If the product contains primary or secondary batteries for RTC or memory back-up purposes, extra care is required not
to place the board on conductive surfaces; including anti-static plastic or sponge, which can cause shorts and lead to
damage to the batteries or the tracks on the board.
Further, please do not exceed the operational temperature ranges given in the specifications for the board version you
ordered. Where batteries are present, their temperature restrictions must also be taken into account.
When fitting the board into a system, remove all power by turning off the power mains. Do not disconnect the mains
however, since grounds connection prevents chassis floating with static voltages, which could damage the board as you
push it home.
Keep all of the original packaging material for future storage or warranty shipments of the board. If it is necessary to
store or ship the board, please repack the board in the same way it was originally packaged.
We wish you, your application, and your PepCard a long and successful life. We are certain that if you take the time
to read through this manual first, you will most probably save yourself time and aggravation later.
June 22, 1998 © 1996 PEP Modular Computers Page 0-1

Preface V1553B UserÕs Manual
Revision History
Manual/Product Title V1553B UserÕs Manual
Publication Number 12961
Issue Brief Description of Changes PCB Index Date of issue
1First release of Issue 1 manual 00 00 9th Feb. 1996
Date of issue = the release date of the issue. This date does not necessarily reflect the date the improvements were first
made.
A thick bar to the left of any text indicates that the text has changed from the previous issue of the manual.
A double thin bar to the left of any text indicates that new text (paragraphs) has been added.
Changes and additions to drawings and boxed text, such as notes or jumper setting tables, cannot be marked in the
above way; therefore this marking system is used only for changes to ÒnormalÓ body text.
This document contains proprietary information of PEP Modular Computers. It may not be copied or transmitted
by any means, passed to others, or stored in any retrieval system or media, without the prior consent of PEP
Modular Computers or its authorized agents.
The information in this document is, to the best of our knowledge, entirely correct. However, PEP Modular
Computers cannot accept liability for any inaccuracies, or the consequences thereof, nor for any liability arising from
the use or application of any circuit, product, or example shown in this document.
PEP Modular Computers reserve the right to change, modify, or improve this document or the product described
herein, as seen fit by PEP Modular Computers without further notice.
It also contains extracts or illustrations reproduced with the kind permission of ICL Data Device Corporation
(DDC) Bohemia, New York. To whom we are grateful.
The information in this document is, to the best of our knowledge, entirely correct. However, PEP Modular
Computers cannot accept liability for any inaccuracies, or the consequences thereof, nor for any liability arising from
the use or application of any circuit, product, or example shown in this document.
PEP Modular Computers reserves the right to change, modify, or improve this document or the product described
herein, as seen fit by PEP Modular computers without further notice.
Page 0-2 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Preface
PEP Modular Computers¨One Year Limited Warranty
We grant the original purchaser of PEP products the following hardware warranty. No other warranties that may be granted or
implied by anyone on behalf of PEP are valid unless the consumer has the express written consent of PEP Modular
Computers.
PEP Modular Computers warrants their own products (excluding software) to be free from defects in workmanship and
materials for a period of 12 consecutive months from the date of purchase. This warranty is not transferable nor extendible to
cover any other consumers or long term storage of the product.
This warranty does not cover products which have been modified, altered, or repaired by any other party than PEP
Modular Computers or their authorized agents. Furthermore, any product which has been, or is suspected of being damaged
as a result of negligence, misuse, incorrect handling, servicing or maintenance; or has been damaged as a result of excessive
current/voltage or temperature; or has had its serial number(s), any other markings, or parts thereof altered, defaced, or remove
d
will also be excluded from this warranty.
A customer who has not excluded his eligibility for this warranty may, in the event of any claim, return the product at the
earliest possible convenience, together with a copy of the original proof of purchase, a full description of the application it is
used on, and a description of the defect; to the original place of purchase. Pack the product in such a way as to ensure safe
transportation (we recommend the original packing materials), whereby PEP undertakes to repair or replace any part, assembly
or sub-assembly at our discretion; or, to refund the original cost of purchase, if appropriate.
In the event of repair, refund, or replacement of any part, the ownership of the removed or replaced parts reverts to PEP
Modular Computers, and the remaining part of the original guarantee, or any new guarantee to cover the repaired or
replaced items, will be transferred to cover the new or repaired items. Any extensions to the original guarantee are considered
gestures of goodwill, and will be defined in the "Repair Report" returned from PEP with the repaired or replaced item.
Other than the repair, replacement, or refund specified above, PEP Modular Computers will not accept any liability for any
further claims which result directly or indirectly from any warranty claim. We specifically exclude any claim for damage to any
system or process in which the product was employed, or any loss incurred as a result of the product not functioning at any
given time. The extent of PEP Modular Computers liability to the customer shall not be greater than the original
purchase price of the item for which any claim exists.
PEP Modular Computers makes no warranty or representation, either express or implied, with respect to its products,
reliability, fitness, quality, marketability or ability to fulfill any particular application or purpose. As a result, the products are
sold "as is," and the responsibility to ensure their suitability for any given task remains the purchaser's.
In no event will PEP be liable for direct, indirect, or consequential damages resulting from the use of our hardware or software
products, or documentation; even if we were advised of the possibility of such claims prior to the purchase of, or during any
period since the purchase of the product.
Please remember that no PEP Modular Computers employee, dealer, or agent are authorized to make any modification or
addition to the above terms, either verbally or in any other form written or electronically transmitted, without consent.
June 22, 1998 © 1996 PEP Modular Computers Page 0-3

Preface V1553B UserÕs Manual
Table Of Contents
1. Introducing the V1553B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1 Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.2 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.3 Specifications of the V1553B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.4 Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.5 Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.6 Features of the V1553B Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.7 Typical V1553B Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
1.8 Functional Block Diagram of the V1553B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1 Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.1. Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.1.1 1553 Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.1.2 VMEbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.1.3 Shared RAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.2.1.4 Control/Status Registers, Jumpers and LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2.2 Internal Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
2.2.3 External Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
3. Configuring the V1553B module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Jumper locations and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
4. Installing the V1553B CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Preparation of the V1553B (VMEbus functions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1.1 Preparation of the VMEbus and/or the VME/IIOCbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 Chronological Installation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
4.3 Front Panel Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Page 0-4 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 1 Introducing the V1553B
1
1. INTRODUCING THE V1553B
1.1 Product Overview
The V1553B circuit card assembly is a 3U VME compatible A24/D16 interrupt capable board with one or two separate dual
redundant MIL-STD-1553-B interfaces. Each 1553 interface has the capability to time-tag incoming messages. A 16-bit
programmable register can be either clocked internally or via an external oscillator source connected through the front panel.
The internal clock source is accurate to within 2µs. Each 1553 interface has an 8 kByte dual-ported RAM buffer that is
accessible by a host processor on the VME interface.
The V1553B offers the user all the functions he requires, to be able to use his VMEbus in a Bus Controller (BC), Remote
Terminal Unit (RTU) and bus Monitor (MT) mode in conjunction with this DoD standardized bus.
The V1553B module with its interfaces, transformers and transceivers provides serial communication to either this Military
standard bus, or to field busses on a Manufacturing Automation Protocol (MAP) network.
Further to its roles in military or naval systems, applications for this bus are found in harsh environments such as oil drilling
industry where it could be used to monitor drill bit conditions down the well, the nuclear reactor industry for critical process
control etc.
1.2 Ordering Information
The V1553B is available as a single slot PepCard module operating within the E2 (-40¼C to +85¼C) temperature range.
Table 1.2 V1553B Ordering Information
Product Description Order No.
V1553B VMEbus to 1553A/B bus single board interface, with two separate
dual redundancy serial interfaces and full status control LEDs 11263
V1553B VMEbus to 1553A/B bus single board interface, with two dual
redundancy serial ports and full status control LEDs.
11264
V1553-DS V1553B MIL-STD-1553 components: Data-sheet for BU61580,
BU29854 and userÕs guide for BU61580
12980
V1553B-
LIB
V1553B MIL-STD-1553 interface library for easy programming of
the V1553B board in Bus Controller, Remote Terminal and Bus
Monitor modes.
12979
V1553B is also available with a 6U Front panel, to be fitted into double-height systems.
June 22, 1998 © 1996 PEP Modular Computers Page 1-1

Chapter 1 Introducing the V1553B V1553B UserÕs Manual
1.3 Specifications of the V1553B
Controller: BU61580 from DDC
Protocol Modes: Bus-Controller(BC)
Remote Terminal Unit (RTU)
Bus Monitor (MT)
Mode Selection: Softwareprogrammable
RAM Size: 4k x 16 Shared RAM
OscillatorFrequency: 16.0 MHz
MIL-STD-1553 Channels: One / two serial, dual-redundancy, channels (A & B) each
with their own connectors for standard Twin-axial cable,
using Trompeter BJ77 connectors.
Interfacing to 1553 Bus: Jumper Selectable, for short stub (direct coupled) or for
long stub (transformer coupled).
Time Tag Counter: 16-Bit read/write counter with 2, 4, 8, 16, 32 or 64µs per
LSB resolution. May be clocked externally or may be
incrementedper software.
Command Illegalization: Softwareprogrammable.
Interrupts (VMEbus): Software programmable
Levels: IRQ1* to IRQ7*
AddressModifier: Supports Standard and Short Defined AM codes.
VMEbusInterface: A24:D16 Slave
PowerRequirements:
(25% Duty Cycle)
+5V DC (±5%), (500 mA max.) < 5W
-12V DC (±10%), (200 mA max.) < 5W
TemperatureRanges
Operating: -25°to +85°C (extended E2)
Storage: -55°to +165°C
Operating Humidity: 0 to 95% (non-condensing)
BoardSize: Single-height Eurocard 100 x 160mm (4 x 61/4")
VMEbus Connector: DIN 41612 style C, 96 contacts, P1 connector
Front Panel Width: 4 HP (20.3mm), 1 slot
Front Panel Functions: Two / four Twin-axial 1553 standard connectors; input for
external Time-Tag clock.
On-BoardLEDs Fail indicator (RedLED)
Bus Active indicator (Yellow LED)
Power ON indicator (GreenLED)
* Active low signals,
1.4 Related Publications
For more information regarding the V1553B, and VMEbus products in general, please refer to the VMEbus
Specifications.
For information about the 1553 bus, please refer to the ANSI specifications or the DDC designers guide.
For information about the BU61580 chip, please refer to the data sheet or to the designers guide available from
DDC.
Page 1-2 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 1 Introducing the V1553B
1.5 Board Overview
Figure 1.5 V1553B Board Overview
T1
T2
T3 T4
U1
U2
U3 U4 U5 U6
U7
U8 U9
U10 U11 U12 U13
U14
U15 U16 U17
U18
U19 U20
LED Functions
Board Failure
Board Power ON
Bus 1 Active
Bus 2 Active
12
Items marked are only available
on order number 11263
June 22, 1998 © 1996 PEP Modular Computers Page 1-3

Chapter 1 Introducing the V1553B V1553B UserÕs Manual
A considerable amount of the V1553B's circuits are contained in the BU61580 Advanced Communication Engine
(ACE) hybrid device.
Two ÒBNCÓ style twin-axial connectors per channel give an easy Òbayonet lockÓ connection of the shielded-
twisted-pair leads, having in each, a male and a female pin for the differential serial signals. The connector bodies
are isolated from the front panel and each other with isolation washers.
Behind each pair of the two front-panel twin-axial connectors of the V1553B, are two transformers providing an
option for balanced line transformer isolation, for improved noise immunity, etc. An option allows the center tap
of the output winding of either to be connected to the shield of their respective leads.
Four status LEDs on the circuit board provide status information of the V1553B.
An on-board mounted 16 MHz crystal oscillator allows an option for the V1553B to function independently of the
VMEbus SYSCLK signal, if desired, by simple jumper selection.
1.6 Features of the V1553B Module
The V1553B utilizes the BU61580 Hybrid module to meet the needs of Military specifications/applications.
The 1553 bus offers very fast (1MHz) Manchester II, Pulse Coded Modulation (PCM) on a serial bus, over
shielded twisted pair cables thus presenting a simplified interconnection, together with rigid standards, ensuring
high noise immunity and high degrees of fault isolation for military LANÕs, test and control systems, etc.
The single-height* size of this module and other PepCards allows a very compact VMEbus system to be created,
and if necessary, contained in smaller ÒTempestÓ cabinets than many of its contemporary 6U modules leading to a
considerable saving in both cost and size/weight.
1.7 Typical V1553B Applications
In conjunction with PEPÕs single board computers, e.g. the VSBC-4, the V1553B may be used as a very compact
control or monitoring computer in vehicle, ship, or aircraft-based applications.
Connecting VMEbus hardware and peripherals to 1553 systems in order to analyze or develop hardware/software
solutions between these two standards.
Providing VMEbus Interface to 1553 Òfield busÓ in MAP LAN networks.
Providing long sensor paths to Òdown holeÓ sensors in the oil drilling industry, where wear sensors encapsulated
into drilling bits can feed back data on the bit condition and/or geological data, such as changes in rock hardness,
etc.
*An optional 6U front panel permitting the V1553B to be used in double-height systems is available on request.
1.8 Functional Block Diagram of the V1553B
Page 1-4 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 1 Introducing the V1553B
Data Bus
Driver
Address Bus
Driver
D15-D0
A15-A0
Data Bus
Address Bus
BU29854
Transformer A
BU29854
Transformer B
CLK_IN TAG_CLK
Processor
Data Bus
Processor
Address Bus
VMEbus 96-pin connector (P1)
VMEbus Interface A24:D16 Slave
D15-D0
A15-A0
VMEbus I/O
Control
Status
Configuration
Processor
Control Bus
BU61580
Dual
Encoder / Decoder
Multiprotocol
BC / RT / Monitor
Protocol
and
Memory
Management
4k x 16 RAM
Failure
Power ON
Bus 1 Active
Bus 2 Active
On-Board
LEDs
J5
321
June 22, 1998 © 1996 PEP Modular Computers Page 1-5

Chapter 1 Introducing the V1553B V1553B UserÕs Manual
This page has been left blank intentionally
Page 1-6 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 2 Functional Description
2
2. FUNCTIONAL DESCRIPTION
2.1 Definition
The V1553B fully implements the 1553 A and B bus protocol with slave and interrupt capability together with the
utilization of shared RAM on the 1553 interface chip to buffer 1553 bus data. The board also has miscellaneous
control/status registers, status LEDs, and configuration jumpers.
2.2 Characteristics
2.2.1 Performance Characteristics
2.2.1.1 1553 Bus Interface
The 1553 bus interface equipped with a BU61580 interface control circuit performs either the Bus Controller,
Monitor Terminal, or the Remote Terminal functions. The operating modes of the BU61580 are described in
detail in the "BU-61580 ADVANCED COMMUNICATION ENGINE" data sheet from Data Device Corporation
(DDC). The V1553B is fully compatible with MIL-STD-1553 revision A and B with time stamps required for
each frame of data received over the 1553 bus. The time-tag register is incremented by either the V1553B on-board
oscillator, or by a clock input via the front panel J5 connector. The 1553 interface transformers can be configured
for either short or long stub coupling via jumpers J10-J13 for channel 1 and J17-20 for channel 2. The center tap
of the 1553 transformers can be connected to ground by installing J14, J15 for channel 1 and J21, J22 for channel
2.
2.2.1.2 VMEbus Interface
The V1553B has a A24/D16 VME slave interface with interrupt capability and is addressable in either short
supervisory, short non-privileged, standard supervisory data, standard non privileged data or user defined data space
(J6). The VME base address is jumper programmable via J8 and the VME interrupt level is programmable
between IRQ 1,2,3,4,5,6, and IRQ7 from the VMEbus.
2.2.1.3 Shared RAM
Each BU61580 has 4k by 16 bits of internal shared RAM which is accessible by both the BU61580 and the
VMEbus CPU.
June 22, 1998 © 1996 PEP Modular Computers Page 2-1

Chapter 2 Functional Description V1553B UserÕs Manual
2.2.1.4 Control/Status Registers, Jumpers and LEDs
The V1553B possesses two configuration/status registers, the VME Configuration Register (VCR) and the 1553
Bus Configuration Register (BCR). The VME interrupt vector (b15-b9), and the IRQ level (b7-b5 for IRQ1
through IRQ7) are selectable by writing to the VCR, while the Board revision (b7-b5) and configuration (b4-b0)
can be accessed through a read of the VCR. Board revision and configuration are selectable through jumper J9. Bit
definitions for the VCR are in Tables 2.2.1.4a and 2.2.1.4b.
Table 2.2.1.4a VME Configuration Register (VCR) - Word Write
Bits b8, b3, b2, b1, b0 : Spare
Setting Name Description
b8, b3, b2, b1, b0 N/A Not used
Bit b4 : Fail LED Control
Setting Name Description
0 FAIL_LED LED ON (default)
1LED OFF
Bits b7 - b5 : VME Interrupt Priority Level
Setting Name Description
0 Disabled(default)
1 IRQ1*
2 IRQ2*
3 IP_LV(2..0) IRQ3*
4 IRQ4*
5 IRQ5*
6 IRQ6*
7 IRQ7*
Bits b15 - b9 : VME Interrupt Vector
Setting Name Description
0 I_VEC(7..0) The number stored in this register will be presented
to the bus master when an interrupt from the
V1553B is acknowledged. Default is a value of 00.
Table 2.2.1.4b VME Configuration Register (VCR) - Word Read
Page 2-2 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 2 Functional Description
Bits b4 - b0 : 1553 Configuration
Setting Name Description
BRD_CFG(4..0) This value is jumper selectable via J9
Bits b7 - b5 : 1553 Revision Number
Setting Name Description
BRD_REV(2..0) This value is jumper selectable via J9
Bits b15 - b8 : Spare
The Remote Terminal (RT) address (b7-b2) and the sub-system flag (b0) are write only bits on the BCR. The RT
address consists of 5 address bits (b6-b2) and one odd parity bit (b7). Bit definitions for the BCR are in Tables
2.2.1.4.c and 2.2.1.4d.
Table 2.2.1.4c 1553 Bus #1 Configuration Register (BCR1) - Word Write
Bit b0 : Bus #1 Sub-System Flag Control
Name Description
SSFLG1*
Bit b1 Spare
Bits b6 - b2 : Remote Terminal Address for Bus #1
Name Description
RT1_AD(4..0) When used as a Remote Terminal on the 1553 bus,
this value represents the RTÕs address.
Bit b7 : RT Address Parity for Bus #1
Name Description
RT1ADP This bit MUST be set to ODD parity
June 22, 1998 © 1996 PEP Modular Computers Page 2-3

Chapter 2 Functional Description V1553B UserÕs Manual
Table 2.2.1.4d 1553 Bus #2 Configuration Register (BCR2) - Word Write
Bit b0 : Bus #2 Sub-System Flag Control
Name Description
SSFLG2
Bit b1 Spare
Bits b6 - b2 : Remote Terminal Address for Bus #2
Name Description
RT2_AD(4..0) When used as a Remote Terminal on the 1553 bus,
this value represents the RTÕs address.
Bit b7 : RT Address Parity for Bus #2
Name Description
RT2ADP This bit MUST be set to ODD parity
Jumpers J10-13 and J17-20 are for selecting long or short 1553 stubs for channels 1 and 2, respectively. Jumpers
J14, J15 and J21, J22 are for selecting grounded or not grounded center tap for A and B busses on channels 1 and
2. The board has status LEDs to indicate Channel 1 and Channel 2 1553 active, power on, and fail. The fail LED
is controlled by bit b4 of the VCR. Table 2.2.1.4e has jumper definitions with defaults shown in italics.
Table 2.2.1.4e Jumper Definitions
Jumper J6 : Address Modifier Select
Setting Description
1-2 AM3
3-4 AM4
5-6 AM5
Default is for these jumpers not to be set for standard/user/data (HEX 39/3A/3D/3E)
Jumper J7 : Dual Channel Select
Setting Description
1-2 Single 1553 Mode
3-4 Dual 1553 Mode
5-6 Single 1553 Mode
Jumper J8 : Address
Page 2-4 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 2 Functional Description
Setting Description
1-2 A14
3-4 A15
5-6 A16
7-8 A17
9-10 A18
11-12 A19
13-14 A20
15-16 A21 This provides the default address
of $87FE0000. Setting 19-20 is
only useful in single channel mode
17-18 A22
19-20 A23
Jumper J9 : Board Revision / Configuration
Setting Description
1-2 C0
3-4 C1
5-6 C2
7-8 C3
9-10 C4
11-12 R0
13-14 R1
15-16 R2
Jumper J10 : 1553 Channel 1A + Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Jumper J11 : 1553 Channel 1A - Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Jumper J12 : 1553 Channel 1B + Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
June 22, 1998 © 1996 PEP Modular Computers Page 2-5

Chapter 2 Functional Description V1553B UserÕs Manual
Jumper J13 : 1553 Channel 1B - Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Jumper J14 : 1553 Channel 1 XFMR A Center Tap
Setting Description
Present CenterTapgrounded
Absent Center Tap floating
Jumper J15 : 1553 Channel 1 XFMR B Center Tap
Setting Description
Present CenterTapgrounded
Absent Center Tap floating
Jumper J17 : 1553 Channel 2A + Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Jumper J18 : 1553 Channel 2A - Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Jumper J19 : 1553 Channel 2B + Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Page 2-6 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 2 Functional Description
Jumper J20 : 1553 Channel 2B - Coupling Mode
Setting Description
1-2 Long Stub
2-3 Short Stub
Jumper J21 : 1553 Channel 2 XFMR A Center Tap
Setting Description
Present CenterTapgrounded
Absent Center Tap floating
Jumper J22 : 1553 Channel 2 XFMR B Center Tap
Setting Description
Present CenterTapgrounded
Absent Center Tap floating
2.2.1 Internal Interface Description
Each BU61580 contains 4k words of shared RAM. This RAM can be accessed by either the BU61580 or the
VME master processor. For a detailed description of the internal workings of the BU61580 see the "BU61580
BC/RT/MT ADVANCED COMMUNICATION ENGINE 'ACE'Ó data sheet from Data Device Corporation.
2.2.2 External Interface Description
The V1553B connects to the VMEbus via the P1 backplane. The base memory address is jumper programmable.
Table 2.2.3a shows an address map of the V1553B.
Table 2.2.3a VME Address Map
Address Function
XXXX XXXX XX00 0000 0000 0000 Base Address - see J8
Base + 0000 (hex) VME Configuration Reg. (word)
Base + 0002 (hex) 1553 Configuration #1 Reg. (word)
Base + 0004 (hex) 1553 Configuration #2 Reg. (word)
Base + 1000 - 103E (hex) BU61580 #1 Config. Reg. (word)
Base + 2000 - 3FFE (hex) BU61580 #1 Shared Ram (word)
Base + 5000 - 503E (hex) BU61580 #2 Config. Reg. (word)
Base + 6000 - 7FFF (hex) BU61580 #2 Shared Ram (word)
June 22, 1998 © 1996 PEP Modular Computers Page 2-7

Chapter 2 Functional Description V1553B UserÕs Manual
The 1553 bus signals are input/output via front panel connectors J1 (Channel 1, Bus A) , J2 (Channel 1, Bus B),
J3 (Channel 2, Bus A), and J4 (Channel 2, Bus B). There is also a front panel time tag connector, J5. Table
2.2.3b lists the 1553 bus pinouts, Table 2.2.3c lists the signals on the time tag connector.
Table 2.2.3b 1553 Connector Pinouts (J1 - Bus 1A, J2 - Bus 1B, J3 - Bus 2A, J4 - Bus 2B)
Pin Number Pin Function
11553 Bus -, Input to Transceiver
21553 Bus + Input to Transceiver
3Bus Shield (to GND)
Table 2.2.3c Time Tag Connector Pinouts (J5)
Pin Number Function
1TCLK_RTN, Return for external
Time-Tag clock, signal GND
21000PPS, External Time-Tag clock,
TTL buffered input
3 Spare
Power is provided via the VMEbus P1 connector. The V1553B shall require the following DC voltages:
+5V DC (500 mA max.)
-12V DC (200 mA max.)
Total power dissipation is less than 5 watts given a 25% 1553 bus duty cycle.
Page 2-8 © 1996 PEP Modular Computers June22,1998

V1553B UserÕs Manual Chapter 3 Configuring the V1553B
3
3. CONFIGURING THE V1553B MODULE
3.1 Jumper locations and functions
The V1553B possesses some sixteen jumper selectable options that allow address configuration, channel selection
and modes of operation.
The V1553B is factory tested for full functionality, and is delivered in the configuration which best suits the
majority of users (default settings), see table 3.1 on the next page. You are strongly recommended to check these
delivered settings against the function set you desire thus ensuring that the V1553B and your system will function
correctly.
Figure 3.1 Jumper Locations Overview
321321321
321
321
321
321
J22
21
21
21
J14
J15
J20
J19
J18
J13
J12
J11J10
J5
321
June 22, 1998 © 1996 PEP Modular Computers Page 3-1

Chapter 3 Configuring the V1553B V1553B UserÕs Manual
J8
J9
J7
J6
J21
J17
4
2
1
3
5
7
9
11
13
15
2
4
6
8
10
12
14
16
20
18
16
14
12
10
8
6
19
17
15
13
11
9
7
5
3
1
1
3
5
2
4
6
1 3 5
2 4 6
12
123
Page 3-2 © 1996 PEP Modular Computers June22,1998