Digital Equipment PCI32-VME64 User manual

DIGITALPCI32-VME64Adapter
HardwareOwner'sGuide
Part Number: EK-DWP64-UG. A01
April 1997
This guide describes the configuration and installation of the DIGITAL PCI32-
VME64 adapter. Read this information before you begin the hardware installation
procedure.
Digital Equipment Corporation
Ma
y
nard, Massachusetts

April 1997
Digital Equipment Corporation makes no representations that the use of its products in the manner described in this
publication will not infringe on existing or future patent rights, nor do the descriptions contained in this publication
imply the granting of licenses to make, use, or sell equipment or software in accordance with the description.
Possession, use, or copying of the software described in this publication is authorized only pursuant to a valid written
license from DIGITAL or an authorized sublicensor.
FCC Notice: This equipment generates and uses radio frequency energy. It has been type tested and found to comply
with the limits for a Class B computing device in accordance with the specifications in Subpart G of Part 15 of FCC
Rules, which are designed to provide reasonable protection against such radio and television interference in a
residential installation.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
interference to radio or television reception, the user is encouraged to try to correct the interference.
MDC Avis De Conformation: Le present appareil numerique n’emet pas de bruits radioelectriques depassant les
limites applicables aux appareils numeriques de Classe B prescrites dans le Reglement sur le brouillage
radioelectriques edicts par le ministere des Communications du Canada.
EMI: This Product complies with the following domestic and international standards:
• Domestic: Complies with FCC Part 15, Class B.
• International: Complies with CISPR22 (EN5502 (European Norm)) Class B.
VCCI:
© Digital Equipment Corporation 1997. All rights reserved.
The following are trademarks of Digital Equipment Corporation: AlphaServer, DIGITAL, OpenVMS, and the
DIGITAL logo.
The following are third-party trademarks:
UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open
Company Ltd.
S3500

iii
Table of Contents
1 Introduction to the PCI32-VME64 Adapter
1.1 Overview of the DIGITAL PCI32-VME64 Adapter................................................. 1–1
1.2 Compatible Software............................................................................................... 1–1
1.3 Components............................................................................................................. 1–1
1.4 Features of the Adapter............................................................................................ 1–2
1.4.1 Major Components......................................................................................... 1–2
1.4.2 Specifications ................................................................................................ 1–3
1.4.3 PCI Bus Bridge Module................................................................................. 1–5
1.4.4 VMEbus Bridge Module................................................................................ 1–6
1.4.5 Interconnect Cable......................................................................................... 1–6
1.4.6 System Controller Jumper.............................................................................. 1–6
1.4.7 Sparse Memory Address Jumpers................................................................... 1–7
2 Installing the PCI32-VME64 Adapter
2.1 Overview................................................................................................................. 2–1
2.2 Verifying the Shipment............................................................................................ 2–1
2.3 Mechanical Requirements........................................................................................ 2–2
2.3.1 Dimensions.................................................................................................... 2–2
2.3.2 Installation Restrictions.................................................................................. 2–2
2.3.3 Installing the Adapter..................................................................................... 2–2
2.4 Testing the Installation ............................................................................................ 2–4
Figures
Figure 1-1 PCI32-VME64 Adapter Components........................................................... 1–2
Figure 1-2 System Block Diagram................................................................................ 1–3
Figure 1-3 System Controller Jumper Location............................................................. 1–6
Figure 1-4 Sparse Memory Address Jumpers................................................................ 1–7
Figure 2-1 PCI Module Slot-Offset Extender Bracket Installation................................. 2–3
Figure 2-2 VMEbus Bridge Module Installation ........................................................... 2–4
Tables
Table 1-1 PCI32-VME64 Adapter Specifications ......................................................... 1–5
Table 1-2 VMEbus Bridge Module System Controller Jumper Setting.......................... 1–6
Table 1-3 PCI Bus Bridge Module Sparse Memory Address Jumper Settings ............... 1–7
Table 2-1 Configuration Part Numbers and Descriptions .............................................. 2–1

iv
Table 2-2 PCI Extender Bracket Specification for AlphaServer Systems ...................... 2–3

v
Preface
Overview
This guide describes the configuration and installation procedures for the DIGITAL PCI32-
VME64 adapter.
Intended Audience
This guide is intended for all users who need to know how to install and use the DIGITAL
PCI32-VME64 adapter on their VME system.
Organization
This guide contains the following chapters:
Chapter 1, Introduction to the DIGITAL PCI32-VME64 Adapter — Provides an
introduction and product overview. It also explains the functions and shows the locations of
the jumpers on the DIGITAL PCI32-VME64 adapter.
Chapter 2, Installing the Adapter — Provides instructions on how to install the PCI32-
VME64 adapter in a DIGITAL AlphaServer system.
Related Documents
Other documents related to the PCI32-VME64 adapter include the following:
Title Part Number
DIGITAL PCI32-VME64 Adapter Driver User’s Guide for OpenVMS AA-R25UA-TE
DIGITAL PCI32-VME64 Adapter Driver Installation Guide for OpenVMS AA-R25VA-TE
DIGITAL PCI32-VME64 Adapter Driver for OpenVMS SPD 60.78.00 AE-R2MTA-TE
DIGITAL PCI32-VME64 Adapter Driver User’s Guide for DIGITAL UNIX AA-R25RA-TE
DIGITAL PCI32-VME64 Adapter Driver Installation Guide for DIGITAL UNIX AA-R25SA-TE
DIGITAL PCI32-VME64 Adapter Driver for DIGITAL UNIX SPD 60.79.00 AE-R2MSA-TE

vi
Conventions
This guide uses the following conventions:
Convention Meaning
Note A note calls the reader’s attention to any item of information that may be of
special importance.
Caution A caution contains information essential to avoid damage to the equipment.
Warning A warning contains information essential to the safety of personnel.


Circled numbers provide a link between figures or examples and text.
Reader’s Comments
DIGITAL welcomes your comments on this or any other manual. You can send your
comments to DIGITAL the following way:
• Mail:
Digital Equipment Corporation
Shared Engineering Services
PKO3-2/29K
129 Parker Street
Maynard, MA 01754-2199

DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide 1–1
1
Introduction to the PCI32-VME64 Adapter
1.1 Overview of the DIGITAL PCI32-VME64 Adapter
The DIGITAL PCI32-VME64 adapter is a high-speed adapter used to interface DIGITAL
systems to various VME applications. One module in this two-module set installs into a
standard PCI bus interface; the other installs into a VME backplane.
1.2 Compatible Software
The DIGITAL PCI32-VME64 adapter is supported on the OpenVMS Alpha and DIGITAL
UNIX operating systems via layered adapter driver software products. Refer to the
appropriate Software Product Descriptions (SPD 60.78.xx for OpenVMS Alpha or SPD
60.79.xx for DIGITAL UNIX) for a list of product functionality and supported systems.
1.3 Components
The DIGITAL PCI32-VME64 adapter consists of the following components (see Figure 1-1):
• PCI Bus Bridge Module (PBM), containing Sparse Memory Address Space Jumpers
• VMEbus (6U) Bridge Module (VBM), containing VMEbus Interface Chip and System
Controller Jumper
• 3-meter Interconnect Cable
• Extender brackets for PBM
• DIGITAL PCI32-VME64 Adapter Hardware Owner’s Guide

Introduction to the PCI32-VME64 Adapter
1–2 DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide
Figure 1-1 PCI32-VME64 Adapter Components
1
2
3
ML013585
 PCI Bus Bridge Module (PBM)
 VMEbus Bridge Module (VBM)
 Interconnect Cable
1.4 Features of the Adapter
The following sections provide an overview of the features of the PCI32-VME64 adapter
modules and interconnect cable.
1.4.1 Major Components
Physically the PCI to VME adapter is a two board set with one board designed to install into a
standard PCI32 interface (Edge card), and the other to install into a 6U VME backplane. A
shielded 3-meter cable will connect the two boards together. The PCI Bus Bridge Module
shall be referred to in this document as the PBM, and the VMEbus Bridge Module as the
VBM. Figure 1-1 shows the physical components and Figure 1-2 shows the system block
diagram.

Introduction to the PCI32-VME64 Adapter
DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide 1–3
Figure 1-2 System Block Diagram
Outbound
address FIFO
Outbound
write FIFO
Outbound
read FIFO
Inbound
write DP RAM
Inbound
read FIFO
Inbound
address FIFO
PCI Bus
interface
Outbound
address FIFO
Outbound
write FIFO
Outbound
read FIFO
Inbound
write FIFO
Inbound
read FIFO
Inbound
address FIFO
XCVRS XCVRS
Byte swap MUX
VMEbus
interface
Outbound
address
translation
Inbound
address
translation
PCI Bus
VMEbus
PCI Bus Module VMEbus Module
Cable
interconnect
ML013586
1.4.2 Specifications
The PCI32-VME64 Adapter provides connectivity between VMEbus devices and supported
PCI-based AlphaServer systems using a process called "memory mapping." With memory
mapping, VME address space and memory cells are accessible to the host software, while
host address space and cells are accessible to VME devices. In this way, memory mapping
permits most required I/O transactions to occur as if the VMEbus were built into the host.
In particular, mapping registers provide a mechanism that allows non-contiguous host
memory physical pages (demand-paged virtual memory) to be accessed from a contiguous
VMEbus address window, or to appear contiguous for DMA operations. 32-bit wide memory
mapping registers (Mapping RAM Registers) are used to steer accesses in 256K byte
segments from PCI address space to VMEbus address space. The contents of the 512 PCI-to-
VMEbus Mapping RAM Registers identify the VMEbus address, the address modifier code,
and the option of byte, word or longword swapping. Likewise, 16,384 32-bit wide Mapping
RAM Registers are available to map 8K byte segments from VMEbus bus onto the PCI bus.
Appropriate operating system device drivers are required for each VMEbus module installed
in the VME chassis. These drivers are written by the user or purchased separately and are not
included with the PCI32-VME64 adapter.

Introduction to the PCI32-VME64 Adapter
1–4 DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide
To illustrate the memory mapping approach, consider each type of transaction that might
occur:
• Direct Memory Access (DMA):
Generally used to achieve the fastest transfer of bulk data, DMA refers to the ability of a
VME module to directly access host memory without involving the host CPU. Two types
of DMA are supported by the PCI32-VME64 adapter:
– Slave-mode – DMA is performed by a processor on a VME device under the direction
of the host CPU.
– Controller (Master) – DMA is performed by the PCI32-VME64 adapter under the
direction of the host CPU.
• Programmed I/O:
Programmed I/O refers to the ability of the CPU to control a data transfer by initiating a
data transfer cycle. It is used for modules that do not support DMA, or when it is not
desirable to permit access by an application program to the memory or registers of a
VME module. Programmed I/0 is required for certain 8-bit and 16-bit data accesses.
• Memory Mapped I/O:
Memory Mapped I/O is used to allow a user level task to access data stored on a VME
module. (The Alpha architecture imposes some restrictions on transactions involving data
transfers shorter than 32 bits.) Memory mapped I/O is supported subject to the technical
limitations and restrictions of the DIGITAL UNIX or OpenVMS Operating Systems.
Refer to the appropriate Software Product Description (SPD) for complete details on
memory mapped I/O support.
Because the PCI32-VME64 adapter is treated like any other processor on the VMEbus, the
PCI32-VME64 adapter can function either as a slave device or as the bus master on the
VMEbus. Consequently, the Alpha host system can directly control and monitor a wide
variety of VMEbus cards and high-performance processors, thus eliminating the need to
purchase an additional VMEbus system controller. As system controller, the PCI32-VME64
adapter will provide 3 levels of arbitration, the VMEbus system clock and system reset, and
the Bus Error global time-out. In addition, interrupts that are generated on the VMEbus by
any VME module can be passed to the host via the PCI32-VME64 adapter. All seven
interrupt levels defined in the VME specification (IEEE 1014C) are supported.
The PCI32-VME64 adapter allows each bus (PCI and VME) to operate independently.
Integrity of the interface between adapter modules is maintained by parity checks on address,
control and data lines.

Introduction to the PCI32-VME64 Adapter
DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide 1–5
Table 1-1 contains the specifications for the PCI32-VME64 adapter.
Table 1-1 PCI32-VME64 Adapter Specifications
General PCI32-VME64 Adapter Specifications
Standards IEEE 1014C (VMEbus)
PCI Local Bus Version 2.1
Data mode generated/accepted D8, D16, D32, D64
Address modes: PCI to VME
VME to PCI
A16, A24, A32
A16, A24, A32
Hardware swapping Byte, word, longword
PIO total size 128 MB (less 256K) available
DMA total size 128 MB slave, 16MB (less 1 byte) master
Interrupt levels 7
Multiple adapters Supported by software
Concurrent I/O through adapter Supported
Mapping register size 256 KB, PCI to VME
8KB, VME to PCI
Number of mapping registers 511 PIO
16K DMA
VME board size 6U
PCI board size PCI long card
Cable length 3 meter maximum
Power requirements VMEbus card: 2.0A @5V
PCI card: 1.6A @5V
Environment Temperature: operating 5ºC to 50ºC
storage -40ºC to 66ºC
Humidity: operating 10% to 90% non-condensing
High Speed Data Transfer*
Operation Speed Data Transfer Direction
Programmed I/O Read - D32
Write - D32
0.9 MB/s VME to PCI
2.4 MB/s PCI to VME
Master DMA BLT Read - D32
Write- D32
31.5 MB/s VME to PCI
18.0 MB/s PCI to VME
Master DMA BLT Read - D64
Write- D64
50.2 MB/s VME to PCI
28.3 MB/s PCI to VME
* Engineering estimates based upon console (non Operating System) measurements taken on a
DIGITAL AlphaServer 8200 system.
1.4.3 PCI Bus Bridge Module
The PCI bus bridge module (PBM) is a single-slot PCI long card module that interfaces
between the 32-bit PCI bus and the interconnect cable that links the bus to the VMEbus
bridge module (VBM). The PBM, which adheres to PCI Local Bus Version 2.1 Specification,
contains the control logic and data buffering to perform this data link.

Introduction to the PCI32-VME64 Adapter
1–6 DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide
1.4.4 VMEbus Bridge Module
The VMEbus bridge module (VBM) is a single 6U VME module that interfaces between the
64-bit VMEbus and the interconnect cable. This module contains the VIC64 VMEbus
interface chip and its companion chips to form the VME 64 interface. The module also
contains registers for memory mapping, hardware-assisted byte swapping, and address and
data buffering to allow for asynchronous communication between the interconnect cable and
the VMEbus. The VIC64 and the associated companion chips (CY7C964’s) are the VME 64
interface.
1.4.5 Interconnect Cable
The interconnect cable is a high-speed, point-to-point interconnect that joins the PCI bus
bridge module and the VMEbus bridge module. The cable contains multiplexed, parity-
protected address and data lines as well as command lines. Two simplex 16-bit data paths
with a positive acknowledge protocol provide a raw bandwidth of 80 MB/s in each direction.
A four-bit command bus also connects the two modules. All data is transferred in 32-bit word
entities using LVDS fully differential drivers and receivers through twisted-pair wires. The
LVDS technology features a low-voltage differential signal and fast transition times. The low
voltage minimizes power use while maximizing data rates.
1.4.6 System Controller Jumper
The system controller jumper, labeled W1, is located on the VMEbus bridge module. When
this jumper is installed, the module handles all the functions of a VMEbus system controller.
When the jumper is not installed, the module handles daisy chains and bus grants, as would
any other module in the system.
Table 1-2 VMEbus Bridge Module System Controller Jumper Setting
W1 Definition
In System Controller
Out Not System Controller
Figure 1-3 System Controller Jumper Location
ML013587

Introduction to the PCI32-VME64 Adapter
DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide 1–7
1.4.7 Sparse Memory Address Jumpers
Three sparse memory address jumpers on the PCI bus bridge module set the size of the sparse
address space window. The jumpers, labeled W1 and W2, and corresponding settings are
shown in Table 1-3 and Figure 1-4.
Table 1-3 PCI Bus Bridge Module Sparse Memory Address Jumper Settings
W1 W2 Window Size
Out Out 16 MB
Out In 32 MB
In Out 64 MB
Figure 1-4 Sparse Memory Address Jumpers
ML013588
W1
W2

HELP

DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide 2–1
2
Installing the PCI32-VME64 Adapter
2.1 Overview
This chapter describes the following installation steps:
• Verifying the Shipment
• Environmental Requirements
• Installation Restrictions
• Installing the PCI32-VME64 Adapter
2.2 Verifying the Shipment
The PCI32-VME64 adapter is provided in two configurations. A bill of materials is provided
with each package and lists the contents of the package.
Table 2-1 lists the two configurations along with their part numbers and a description of each.
Table 2-1 Configuration Part Numbers and Descriptions
Configuration Part Number Description
OpenVMS 2T-DWP64-AA PCI32-VME64 adapter hardware, BC12N-10 3-meter
cable, OpenVMS adapter driver media kit,
documentation, extender brackets
DIGITAL UNIX 2T-DWP64-BA PCI32-VME64 adapter hardware, BC12N-10 3-meter
cable, DIGITAL UNIX adapter driver media kit,
documentation, extender brackets
If any component is missing or damaged, call the DIGITAL field representative, customer
support division, shipping agent, or dealer.

Installing the PCI32-VME64 Adapter
2–2 DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide
2.3 Mechanical Requirements
2.3.1 Dimensions
VMEbus Bridge Module Dimensions: 160 mm x 233 mm (6.3 in. x 9.2 in.)
VMEbus Bridge Module weight 120 g (4.2 oz)
PCI Bus Bridge Module Dimensions 106.68 mm x 312 mm (4.2 in. x 12.28 in.)
PCI Bus Bridge Module weight 120 g (4.2 oz)
2.3.2 Installation Restrictions
The following restrictions apply to the PCI32-VME64 adapter hardware:
• Installation of the PCI32 module in a PCI slot, which supports shared interrupts, is not
supported.
• Installation of the PCI32 module in a PCI slot, which is behind a PCI-PCI bridge chip
(i.e. secondary PCI bus), is not supported.
• Due to the tightly integrated nature of the module set, power to the VME64 module must
remain on while the host operating system is running. Powering off the VMEbus chassis
while the host operating system is running will result in a system crash.
2.3.3 Installing the Adapter
This section provides the steps necessary to install the adapter modules.
_____________________________Caution__________________________
Electrostatic discharge may cause the PCI32-VME64 adapter to malfunction.
When you handle adapters, wear an antistatic wriststrap with the wire clipped to
the frame of the system.
______________________________________________________________
1. Perform a power shutdown of both the VMEbus chassis and the AlphaServer system.
a. Perform an orderly shutdown of the operating system.
b. Set all power switches on the system and the VME chassis to the “off” position.
c. Unplug all power cords from the wall socket, then disconnect the cord from the
system unit and the VME chassis.
2. Set jumpers on the VME and PCI modules to the desired configuration settings, as
outlined Section 1.4.6 and Section 1.4.7.
3. The PCI bus bridge adapter module is shipped with the straight extender bracket
attached. The type of extender bracket required depends on the model of the AlphaServer
host. Table 2-2 identifies the PCI extender bracket used in each AlphaServer model. If
the AlphaServer system requires a slot-offset extender bracket, remove the straight
extender bracket and refer to Figure 2-1 to install the PCI slot-offset extender bracket.

Installing the PCI32-VME64 Adapter
DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide 2–3
Table 2-2 PCI Extender Bracket Specification for AlphaServer Systems
AlphaServer Model Straight Extender Bracket
(P/N 74-49920-01) Slot-Offset Extender Bracket (P/N 74-47802-01)
AlphaServer 4100 
AlphaServer 8200 
AlphaServer 8400 
Figure 2-1 PCI Module Slot-Offset Extender Bracket Installation
1
2
ML014009

Self-tapping Screws

Offset extender bracket

Installing the PCI32-VME64 Adapter
2–4 DIGITAL PCI32-VME64 Adapter Hardware Owner's Guide
4. Install the PCI adapter module as follows:
a. Remove slot covers from PCI slots.
b. Align the PCI bus bridge adapter module with the slot and push down to make a firm
connection, then fasten the screw.
c. Reinstall the slot covers for the PCI slots and fasten the screws.
d. Attach the interconnect cable to the PCI bus bridge module, making sure the
connection is firm, and tighten the thumbscrews on the connector.
e. Close the system unit and reconnect the power cord.
5. Install the VMEbus bridge module (see Figure 2-2), following these steps:
a. Remove the cover plate from the VME chassis by removing the screws.
b. Align the VMEbus bridge adapter module with the slot  and push down to make a
firm connection with the slot connectors  . Tighten the two screws  to fasten the
module to the backplane.
c. Attach the interconnect cable to the VMEbus bridge module, making sure the
connection is firm, and tighten the thumbscrews on the connector.
6. Power on the VME chassis and the host system.
Figure 2-2 VMEbus Bridge Module Installation
1
2
3
ML013589
2.4 Testing the Installation
After applying power to the adapter verify that the LED on the front panel of the VME
module is on. This verifies that the proper voltages are applied to the module and that the
clock circuitry is functioning properly
The PCI module and cable connections are verified by the adapter software at system boot
time.