BECKHOFF CB4051 User Manual

CB4051

Manual

rev 1.5

Beckhoff Automation GmbH phone: [phone]
Eiserstr. 5 fax: [phone]
33415 Verl email: [e-mail]
Germany web: www.beckhoff.de

Contents

Contents

0 History ................................................................................................................................................... 5

1 Introduction ........................................................................................................................................... 6

1.1 Notes on the Documentation ......................................................................................................... 6

1.1.1 Liability Conditions ................................................................................................................ 6

1.1.2 Copyright ............................................................................................................................... 6

1.2 Safety Instructions ......................................................................................................................... 7

1.2.1 Disclaimer .............................................................................................................................. 7

1.2.2 Description of Safety Symbols .............................................................................................. 7

1.3 Essential Safety Measures ............................................................................................................ 8

1.3.1 Operator's Obligation to Exercise Diligence .......................................................................... 8

1.3.2 National Regulations Depending on the Machine Type ........................................................ 8

1.3.3 Operator Requirements ......................................................................................................... 8

1.4 Functional Range .......................................................................................................................... 9

2 Overview ............................................................................................................................................. 10

2.1 Features ...................................................................................................................................... 10

2.2 Specifications and Documents .................................................................................................... 12

3 Detailed Description ........................................................................................................................... 13

3.1 Power Supply .............................................................................................................................. 13

3.2 CPU ............................................................................................................................................. 13

3.3 Memory ....................................................................................................................................... 13

4 Connectors ......................................................................................................................................... 14

4.1 Connector Map ............................................................................................................................ 15

4.2 Power Supply .............................................................................................................................. 16

4.3 System ........................................................................................................................................ 17

4.4 Memory ....................................................................................................................................... 18

4.5 PC/104-Plus Bus ......................................................................................................................... 21

4.6 VGA ............................................................................................................................................. 23

4.7 LCD ............................................................................................................................................. 24

4.8 USB 1 to 4, LAN, Sound ............................................................................................................. 26

4.9 USB 5 and 6, LAN2 ..................................................................................................................... 28

4.10 SATA Interfaces .......................................................................................................................... 29

4.11 IDE Interface ............................................................................................................................... 30

4.12 Parallel Interface LPT .................................................................................................................. 31

4.13 Serial Interface COM1 ................................................................................................................. 32

4.14 Serial Interface COM2 ................................................................................................................. 33

4.15 SMBus ......................................................................................................................................... 34

4.16 Monitoring Functions ................................................................................................................... 35

5 BIOS Settings ..................................................................................................................................... 36

5.1 Remarks for Setup Use ............................................................................................................... 36

5.2 Top Level Menu ........................................................................................................................... 36

5.3 Standard CMOS Features ........................................................................................................... 37

5.3.1 IDE Channel 0 Master/Slave ............................................................................................... 38

5.4 Advanced BIOS Features ........................................................................................................... 39

5.4.1 CPU Feature ....................................................................................................................... 41

5.4.2 Hard Disk Boot Priority ........................................................................................................ 42

5.5 Advanced Chipset Features ........................................................................................................ 43

Beckhoff New Automation Technology CB4051 page 3

Contents

5.5.1 PCI Express Root Port Function ......................................................................................... 45

5.6 Integrated Peripherals ................................................................................................................. 46

5.6.1 OnChip IDE Devices ........................................................................................................... 47

5.6.2 Onboard Devices ................................................................................................................. 48

5.6.3 SuperIO Devices ................................................................................................................. 49

5.7 Power Management Setup .......................................................................................................... 50

5.8 PnP/PCI Configuration ................................................................................................................ 52

5.8.1 IRQ Resources .................................................................................................................... 54

5.9 PC Health Status ......................................................................................................................... 55

5.10 Frequency/Voltage Control ......................................................................................................... 57

5.11 Load Fail-Safe Defaults ............................................................................................................... 58

5.12 Load Optimized Defaults ............................................................................................................. 58

5.13 Set Password .............................................................................................................................. 58

5.14 Save & Exit Setup ....................................................................................................................... 58

5.15 Exit Without Saving ..................................................................................................................... 58

6 BIOS update ....................................................................................................................................... 59

7 Mechanical Drawing ........................................................................................................................... 60

7.1 PCB: Mounting Holes .................................................................................................................. 60

7.2 PCB: Pin 1 Dimensions ............................................................................................................... 61

7.3 PCB: Heat Sink ........................................................................................................................... 62

8 Technical Data .................................................................................................................................... 63

8.1 Electrical Data ............................................................................................................................. 63

8.2 Environmental Conditions ........................................................................................................... 63

8.3 Thermal Specifications ................................................................................................................ 64

9 Support and Service ........................................................................................................................... 65

9.1 Beckhoff's Branch Offices and Representatives ......................................................................... 65

9.2 Beckhoff Headquarters................................................................................................................ 65

9.2.1 Beckhoff Support ................................................................................................................. 65

9.2.2 Beckhoff Service ................................................................................................................. 65

I Annex: Post-Codes ............................................................................................................................. 66

II Annex: Resources .............................................................................................................................. 69

A IO Range ......................................................................................................................................... 69

B Memory Range ................................................................................................................................ 69

C Interrupt ........................................................................................................................................... 69

D PCI Devices ..................................................................................................................................... 70

E SMB Devices ................................................................................................................................... 70

page 4 Beckhoff New Automation Technology CB4051

Notes on the Documentation Chapter: History

0 History

Version Changes

0.1 first preliminary release

0.2 adopted new name for form factor: "PCI-104" from www.pc104.org,
updated block diagram

0.3 numbering of USB and SATA starts at 1 in block diagram and pinout tables

0.4 updated annex (PCI and SMB devices), minor changes

1.0 - added connector map

- updated block diagram

- updated temperature ranges

- several small changes

1.1 updated contact details, minor changes

1.2 new photographs (board rev. G4), minor changes

1.3 minor changes

1.4 updated block diagram: BIOS connected via SPI, added note concerning PS_ON,
minor changes

1.5 minor changes

NOTE

All company names, brand names, and product names referred to in this manual are registered or
unregistered trademarks of their respective holders and are, as such, protected by national and
international law.

Beckhoff New Automation Technology CB4051 page 5

Chapter: Introduction Notes on the Documentation

1 Introduction

1.1 Notes on the Documentation

This description is only intended for the use of trained specialists in control and automation engineering
who are familiar with the applicable national standards. It is essential that the following notes and
explanations are followed when installing and commissioning these components.

1.1.1 Liability Conditions

The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.
The documentation has been prepared with care. The products described are, however, constantly under
development. For that reason the documentation is not in every case checked for consistency with
performance data, standards or other characteristics. None of the statements of this manual represents a
guarantee (Garantie) in the meaning of § 443 BGB of the German Civil Code or a statement about the
contractually expected fitness for a particular purpose in the meaning of § 434 par. 1 sentence 1 BGB. In
the event that it contains technical or editorial errors, we retain the right to make alterations at any time
and without warning. No claims for the modification of products that have already been supplied may be
made on the basis of the data, diagrams and descriptions in this documentation.

1.1.2 Copyright

© This documentation is copyrighted. Any reproduction or third party use of this publication, whether in
whole or in part, without the written permission of Beckhoff Automation GmbH, is forbidden.

page 6 Beckhoff New Automation Technology CB4051

Safety Instructions Chapter: Introduction

1.2 Safety Instructions

Please consider the following safety instructions and descriptions. Product specific safety instructions are
to be found on the following pages or in the areas mounting, wiring, commissioning etc.

1.2.1 Disclaimer

All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH.

1.2.2 Description of Safety Symbols

The following safety symbols are used in this documentation. They are intended to alert the reader to the
associated safety instructions.

ACUTE RISK OF INJURY!

If you do not adhere to the safety advise next to this symbol, there is immediate danger to life and health
of individuals!

RISK OF INJURY!

If you do not adhere to the safety advise next to this symbol, there is danger to life and health of
individuals!

HAZARD TO INDIVIDUALS, ENVIRONMENT, DEVICES, OR DATA!

If you do not adhere to the safety advise next to this symbol, there is obvious hazard to individuals, to
environment, to materials, or to data.

NOTE OR POINTER

This symbol indicates information that contributes to better understanding.

Beckhoff New Automation Technology CB4051 page 7

Chapter: Introduction Essential Safety Measures

1.3 Essential Safety Measures

1.3.1 Operator's Obligation to Exercise Diligence

The operator must ensure that

o the product is only used for its intended purpose
o the product is only operated in sound condition and in working order
o the instruction manual is in good condition and complete, and always available for reference at the

location where the products are used

o the product is only used by suitably qualified and authorised personnel
o the personnel is instructed regularly about relevant occupational safety and environmental protection

aspects

o the operating personnel is familiar with the operating manual and in particular the safety notes

contained herein

1.3.2 National Regulations Depending on the Machine Type

Depending on the type of machine and plant in which the product is used, national regulations governing
the controllers of such machines will apply, and must be observed by the operator. These regulations
cover, amongst other things, the intervals between inspections of the controller. The operator must initiate
such inspections in good time.

1.3.3 Operator Requirements

o Read the operating instructions
All users of the product must have read the operating instructions for the system they work with.
o System know-how
All users must be familiar with all accessible functions of the product.

page 8 Beckhoff New Automation Technology CB4051

Functional Range Chapter: Introduction

1.4 Functional Range

NOTE

The descriptions contained in the present documentation represent a detailed and extensive product
description. As far as the described motherboard was acquired as an integral component of an Industrial
PC from Beckhoff Automation GmbH, this product description shall be applied only in limited scope. Only
the contractually agreed specifications of the corresponding Industrial PC from Beckhoff Automation
GmbH shall be relevant. Due to several models of Industrial PCs, variations in the component placement
of the motherboards are possible. Support and service benefits for the built-in motherboard will be
rendered by Beckhoff Automation GmbH exclusively as specified in the product description (inclusive
operation system) of the particular Industrial PC.

Beckhoff New Automation Technology CB4051 page 9

Chapter: Overview Features

2 Overview

2.1 Features

The CB4051 is a highly complex PCI-104-board with the functionalities of a motherboard. Equipped with
an Intel® Celeron® M, an Intel® Core™ Duo, or an Intel® Core™2 Duo processor, it can accommodate
up to 2 GByte RAM (DDR2-667) via SO-DIMM200. It also provides a PCI bus (via PC/104-Plus) and
additional peripheral devices such as two serial interfaces, Gigabit-LAN, one IDE and two SATA
interfaces, audio in and out, eight USB channels and CRT and TFT support. As an option a PCIe
connector can be provided.

CRT
LCD

DVI

USB1
USB2
USB3
USB4
USB5

USB6
(USB7)
(USB8)

LAN1

KB

MS

Clock

IDTCV111PAG

LVDS 18Bit

USB 2.0

Intel®

82562GZ

Winbond®

W83627HG

LPC

Intel® Core™2 Duo,

Core™ Duo, Pentium® M

HOST

GMCH

Intel® 945GME

DMI

ICH7M

Intel® 82801GB

SPI

BIOS

PCI

VCCCore; VTT; DDRVTT

MEMORY

ACLink

Power

1,5V; 1,8V; 2,5V; 3,3V

SoDIMM200

DDR2-667

RealTek®

ALC655

PCIe

Intel®

82573L

SMBus
SPDIF i

SPDIF o
LINE
MIC
OUT

IDE
SATA1
SATA2

Slot1

Slot2

Slot3

Slot4

COM1

COM2

LPT/FDC

Watchdog

PC/104 Plus

PC/104 Plus

PC/104 Plus

PC/104 Plus

(PCIe,

3 lanes)

LAN2

o Processor Intel® Celeron® M, Intel® Core™ Duo, Intel® Core™2 Duo
o Chipset Intel® 945GM(E) and Intel® ICH7
o SO-DIMM200 socket for one DDR2-667 module of up to 2 GByte
o Two serial interfaces COM1 and COM2
o LAN-interface Ethernet 10/100 (Base-T)
o LAN-interface Ethernet 10/100/1000 (Base-T)
o IDE-interface
o Two SATA-interfaces
o PS2 keyboard / mouse interface
o LPT interface
o Eight USB 2.0 interfaces
o AWARD® BIOS 6.10

page 10 Beckhoff New Automation Technology CB4051

Features Chapter: Overview

o CRT connection
o TFT connection, LVDS 18Bit
o AC97 compatible sound controller with SPDIF in and out
o RTC with external CMOS battery
o 5V single supply voltage
o PCI bus via PC/104-Plus
o PCIe connector (option), 3 lanes
o Size: 96 mm x 90 (115,5) mm

Beckhoff New Automation Technology CB4051 page 11

Chapter: Overview Specifications and Documents

2.2 Specifications and Documents

In making this manual and for further reading of technical documentation, the following documents,
specifications and web-pages were used and are recommended.

§ PC/104™ specification
Version 2.5

www.pc104.org

§ PC/104-Plus™ specification
Version 2.0

www.pc104.org

§ PCI-104™ specification
Version 1.0

www.pc104.org

§ PCI specification
Version 2.3 resp. 3.0

www.pcisig.com

§ PCI-Express specification
Version 1.1

www.pcisig.com

§ ACPI specification
Version 3.0

www.acpi.info

§ ATA/ATAPI specification
Version 7 Rev. 1

www.t13.org

§ USB specifications

www.usb.org

§ SM-Bus specification
Version 2.0

www.smbus.org

§ Intel® chip set description
Mobile Intel 945 Express Chipset Family Datasheet

www.intel.com

§ Intel® chip descriptions
Celeron® M, Core™ Duo/Solo, Core2™ Duo

www.intel.com

§ Winbond® chip description
W83627HG Datasheet

www.winbond-usa.com or www.winbond.com.tw

§ Intel® chip description
82562GZ Datasheet

www.intel.com

§ Intel® chip description
82573E Datasheet

www.intel.com

§ IDT® chip description
IDTCV111i Datasheet

www.idt.com

page 12 Beckhoff New Automation Technology CB4051

Power Supply Chapter: Detailed Description

3 Detailed Description

3.1 Power Supply

The power supply of the hardware module is effected via the power connector. The board only requires
an operating voltage of 5 volt ± 5%.

3.2 CPU

The board can be ordered with one of the following processors employed:Intel® Celeron® M, Intel®
Core™ Duo, and Intel® Core™ 2 Duo. The package type allows a maximum die temperature of 100
degrees Celsius and accords highest possible security even in rough environment.
The processor includes a second level cache of up to 4 MByte, depending on which model is used.
Furthermore the processors offer many features known from the desktop range such as MMX2, serial
number, loadable microcode etc.

3.3 Memory

There is one conventional SO-DIMM200 socket available to equip the board with memory. For technical
and mechanical reasons it is possible that particular memory modules cannot be employed. Please ask
your sales representative for recommended memory modules.
With currently available SO-DIMM200 modules a memory extension up to 2 GByte is possible
(DDR2-667).

Beckhoff New Automation Technology CB4051 page 13

Chapter: Connectors Memory

4 Connectors

This section describes all the connectors found on the CB4051.

CAUTION

For most interfaces, the cables must meet certain requirements. For instance, USB 2.0 requires twisted
and shielded cables to reliably maintain full speed data rates. Restrictions on maximum cable length are
also in place for many high speed interfaces and for power supply. Please refer to the respective
specifications and use suitable cables at all times.

page 14 Beckhoff New Automation Technology CB4051

Connector Map Chapter: Connectors

4.1 Connector Map

Please use the connector map below for quick reference. Only connectors on the component side are
shown. For more information on each connector refer to the table below.

Ref-No. Function Page

P501 "SATA Interfaces" p. 29
P502* "PCIe" (option) n/a
U600* "Memory" p. 18
P800 "Serial Interface COM1" p. 32
P801 "USB 1 to 4, LAN, Sound" p. 26
P802 "Serial Interface COM2" p. 33
P803 "IDE Interface" p. 30
P804 "Parallel Interface LPT" p. 31
P805/6 "LCD" p. 24
P1200 "System" p. 17
P1201 "PC/104-Plus Bus" p. 21
P1202 "Power Supply" p. 16
P1203 "SMBus" p. 34
P1204 "Monitoring Functions" p. 35
P1205 "VGA" p. 23
P1206 "USB 5 and 6, LAN2" p. 28

* not in the picture above (cf. bottom side of board)

Beckhoff New Automation Technology CB4051 page 15

Chapter: Connectors Power Supply

4.2 Power Supply

The power supply is effected via a 2x2pin connector (Molex PS 43045-04xx, mating connector: Molex PS
43025-04xx).
The board only requires an operating voltage of 5 volt ± 5%. 3.3V output to the PC/104-Plus bus is the
only off-board supply available.
Should additional voltages be needed for PC/104-Plus expansion cards, these must be provided
externally by connecting the respective pins on the PC/104-Plus connector (see below).
For maximum current availability, it is recommended to use both this power connector and the
PC/104-Plus connector for power supply.

CAUTION

The CB4051 includes circuitry that will notify an intelligent power supply to shut down if the processor
reaches a critical temperature. This is achieved by deasserting the (low-active) PS_ON# signal found on
the SM-Bus connector. When PS_ON# is no longer pulled low, an intelligent power supply would take this
as a signal to shut down power. For this to work, PS_ON# must be connected to the power supply's
PS_ON input. If PS_ON# is not otherwise connected, the CB4051 can be damaged beyond repair if a
thermal shutdown event occurs. In rare instances, if power is not shut down, the board will continue to
heat up until failure occurs.

Description Name Pin Name Description

5 volt supply VCC 1 2 VCC 5 volt supply
ground GND 3 4 GND ground

page 16 Beckhoff New Automation Technology CB4051

System Chapter: Connectors

4.3 System

The system connector, which has the main functions that are necessary to start the board, is provided via
a standard IDC socket connector with a spacing of 2.54 mm.
This connector supports the following interfaces: PS/2 keyboard, PS/2 mouse, speaker, external
RTC-battery and reset of the board.

NOTE

For "Real Time Clock" an external battery (3.3V) must be connected. Connect "+" to VBAT and "-" to
GND.

Description Name Pin Name Description

speaker to 5 volt SPEAKER 1 2 GND ground
reset to ground RESET# 3 4 KLOCK# keyboard lock
keyboard Data KDAT 5 6 KCLK keyboard clock
mouse data MDAT 7 8 MCLK mouse clock
CMOS battery ≥ 3 volt VBAT 9 10 VCC 5 volt supply

Beckhoff New Automation Technology CB4051 page 17

Chapter: Connectors Memory

4.4 Memory

There is one conventional SO-DIMM200 socket available to equip the board with memory (DDR2-667). It
is located on the bottom side of the board. For technical and mechanical reasons it is possible that
particular memory modules cannot be employed. Please ask your sales representative for recommended
memory modules.
With currently available SO-DIMM modules a memory extension up to 2 GByte is possible. The timing
parameters for different memory modules are automatically set by BIOS.

Description Name Pin Name Description

memory reference current REF 1 2 GND ground
ground GND 3 4 DQ4 data 4
data 0 DQ0 5 6 DQ5 data 5
data 1 DQ1 7 8 GND ground
ground GND 9 10 DQM0 data mask 0
data strobe 0 - DQS0# 11 12 GND ground
data strobe 0 + DQS0 13 14 DQ6 data 6
ground GND 15 16 DQ7 data 7
data 2 DQ2 17 18 GND ground
data 3 DQ3 19 20 DQ12 data 12
ground GND 21 22 DQ13 data 13
data 8 DQ8 23 24 GND ground
data 9 DQ9 25 26 DQM1 data mask 1
ground GND 27 28 GND ground
data strobe 1 - DQS1# 29 30 CK0 clock 0 +
data strobe 1 + DQS1 31 32 CK0# clock 0 ­ground GND 33 34 GND ground
data 10 DQ10 35 36 DQ14 data 14
data 11 DQ11 37 38 DQ15 data 15
ground GND 39 40 GND ground
ground GND 41 42 GND ground
data 16 DQ16 43 44 DQ20 data 20
data 17 DQ17 45 46 DQ21 data 21
ground GND 47 48 GND ground
data strobe 2 - DQS2# 49 50 N/C reserved

page 18 Beckhoff New Automation Technology CB4051

Memory Chapter: Connectors

Description Name Pin Name Description

data strobe 2 + DQS2 51 52 DQM2 data mask 2
ground GND 53 54 GND ground
data 18 DQ18 55 56 DQ22 data 22
data 19 DQ19 57 58 DQ23 data 23
ground GND 59 60 GND ground
data 24 DQ24 61 62 DQ28 data 28
data 25 DQ25 63 64 DQ29 data 29
ground GND 65 66 GND ground
data mask 3 DQM3 67 68 DQS3# data strobe 3 ­reserved N/C 69 70 DQS3 data strobe 3 +
ground GND 71 72 GND ground
data 26 DQ26 73 74 DQ30 data 30
data 27 DQ27 75 76 DQ31 data 31
ground GND 77 78 GND ground
clock enables 0 CKE0 79 80 CKE1 clock enables 1

1.8 volt supply 1.8V 81 82 1.8V 1.8 volt supply
reserved N/C 83 84 N/C reserved
SDRAM bank 2 BA2 85 86 N/C reserved

1.8 volt supply 1.8V 87 88 1.8V 1.8 volt supply
address 12 A12 89 90 A11 address 11
address 9 A9 91 92 A7 address 7
address 8 A8 93 94 A6 address 6

1.8 volt supply 1.8V 95 96 1.8V 1.8 volt supply
address 5 A5 97 98 A4 address 4
address 3 A3 99 100 A12 address 2
address 1 A1 101 102 A0 address 0

1.8 volt supply 1.8V 103 104 1.8V 1.8 volt supply
address 10 A10 105 106 BA1 SDRAM bank 1
SDRAM bank 0 BA0 107 108 RAS# row address strobe
write enable WE# 109 110 S0# chip select 0

1.8 volt supply 1.8V 111 112 1.8V 1.8 volt supply
column address strobe CAS# 113 114 ODT0 on die termination 0
chip select 1 S1# 115 116 A13 address 13

1.8 volt supply 1.8V 117 118 1.8V 1.8 volt supply
on die termination 1 ODT1 119 120 N/C reserved
ground GND 121 122 GND ground
data 32 DQ32 123 124 DQ36 data 36
data 33 DQ33 125 126 DQ37 data 37
ground GND 127 128 GND ground
data strobe 4 - DQS4# 129 130 DQM4 data mask 4
data strobe 4 + DQS4 131 132 GND ground
ground GND 133 134 DQ38 data 38
data 34 DQ34 135 136 DQ39 data 39
data 35 DQ35 137 138 GND ground
ground GND 139 140 DQ44 data 44
data 40 DQ40 141 142 DQ45 data 45
data 41 DQ41 143 144 GND ground
ground GND 145 146 DQS5# data strobe 5 ­data mask 5 DQM5 147 148 DQS5 data strobe 5 +
ground GND 149 150 GND ground
data 42 DQ42 151 152 DQ46 data 46
data 43 DQ43 153 154 DQ47 data 47
ground GND 155 156 GND ground
data 48 DQ48 157 158 DQ52 data 52
data 49 DQ49 159 160 DQ53 data 53

Beckhoff New Automation Technology CB4051 page 19

Chapter: Connectors Memory

Description Name Pin Name Description

ground GND 161 162 GND ground
test TEST 163 164 CK1 clock 1 +
ground GND 165 166 CK1# clock 1 ­data strobe 6 - DQS6# 167 168 GND ground
data strobe 6 DQS6 169 170 DQM6 data mask 6
ground GND 171 172 GND ground
data 50 DQ50 173 174 DQ54 data 54
data 51 DQ51 175 176 DQ55 data 55
ground GND 177 178 GND ground
data 56 DQ56 179 180 DQ60 data 60
data 57 DQ57 181 182 DQ61 data 61
ground GND 183 184 GND ground
data mask 7 DQM7 185 186 DQS7# data strobe 7 ­ground GND 187 188 DQS7 data strobe 7 +
data 58 DQ58 189 190 GND ground
data 59 DQ59 191 192 DQ62 data 62
ground GND 193 194 DQ63 data 63
SMBus data SDA 195 196 GND ground
SMBus clock SCL 197 198 SA0 SPD address

3.3 volt supply 3.3V 199 200 SA1 SPD address

page 20 Beckhoff New Automation Technology CB4051

PC/104-Plus Bus Chapter: Connectors

4.5 PC/104-Plus Bus

Expansion cards can be connected to the board using the PCI connector first introduced with the
PC/104-Plus standard. A maximum of four PC/104-Plus cards are supported.
The interrupt routing and the IDSEL signals for the expansion cards are specified in the PC/104-Plus
specification (see "Specifications and Documents", p. 12).

Description Name Pin Name Description

ground GND A1 B1 N/C reserved

3.3 volt - IO buffer power VIO A2 B2 AD2 PCI – address/data 2
PCI – address/data 5 AD5 A3 B3 GND ground
PCI – com/byte enable 0 CBE0# A4 B4 AD7 PCI – address/data 7
ground GND A5 B5 AD9 PCI – address/data 9
PCI – address/data 11 AD11 A6 B6 VIO 3.3 volt - IO buffer power
PCI – address/data 14 AD14 A7 B7 AD13 PCI – address/data 13

3.3 volt supply 3.3V A8 B8 CBE1# PCI – com/byte enable 1
PCI – system error SERR# A9 B9 GND ground
ground GND A10 B10 PERR# PCI – parity error
PCI – stop stop# A11 B11 3.3V 3.3 volt supply

3.3 volt supply 3.3V A12 B12 TRDY# PCI – target ready
PCI – frame FRAME# A13 B13 GND ground
ground GND A14 B14 AD16 PCI – address/data 16
PCI – address/data 18 AD18 A15 B15 3.3V 3.3 volt supply
PCI – address/data 21 AD21 A16 B16 AD20 PCI – address/data 20

3.3 volt supply 3.3V A17 B17 AD23 PCI – address/data 23
PCI – ID select slot 1 IDSEL0 A18 B18 GND ground
PCI – address/data 24 AD24 A19 B19 CBE3# PCI – com/byte enable 3
ground GND A20 B20 AD26 PCI – address/data 26
PCI – address/data 29 AD29 A21 B21 VCC 5 volt supply
5 volt supply VCC A22 B22 AD30 PCI – address/data 30
PCI – bus request slot 1 REQ0# A23 B23 GND ground
ground GND A24 B24 REQ2# PCI – bus request slot 3
PCI – bus grant slot 4 GNT1# A25 B25 VIO 5 volt - IO buffer power
5 volt supply VCC A26 B26 CLK0 PCI – clock slot 1
PCI – clock slot 3 CLK2 A27 B27 VCC 5 volt supply

Beckhoff New Automation Technology CB4051 page 21