SOM-4450 ETX

Module

NS Geode 586-Level SOM-ETX

CPU Module with SVGA/LCD/

LVDS/LAN/SSD Interface

User's Manual

Copyright notice

This document is copyrighted, 2002, by Advantech Co., Ltd. All rights are reserved. The original manufacturer reserves the right to make improvements to the products described in this manual at any time without notice.

No part of this manual may be reproduced, copied, translated or transmitted in any form or by any means without the prior written permission of the original manufacturer. Information provided in this manual is intended to be accurate and reliable. However, the original manufacturer assumes no responsibility for its use, nor for any infringements upon the rights of third parties which may result from its use.

Acknowledgements

SOM and DTOS are trademarks of Advantech Co., Ltd.

AMD is a trademark of Advanced Micro Devices, Inc.

Award is a trademark of Award Software International, Inc.

Cyrix is a trademark of Cyrix Corporation.

IBM, PC/AT, PS/2 and VGA are trademarks of International Business

Machines Corporation.

Intel and Pentium are trademarks of Intel Corporation.

Microsoft Windows ® is a registered trademark of Microsoft Corp.

RTL is a trademark of Realtek Semiconductor Co., Ltd.

C&T is a trademark of Chips and Technologies, Inc.

UMC is a trademark of United Microelectronics Corporation.

Winbond is a trademark of Winbond Electronics Corp.

STPC is a trademark of SGS Thomson Corp.

For more information on this and other Advantech products, please visit our website at: http://www.advantech.com

For technical support and service, please visit our support website at: http://www.advantech.com/support

This manual is for the SOM-4450

Part No. 2006445001

2 ND Edition Printed in Taiwan June 2002

Packing list

Before you begin installing your card, please make sure that the following materials have been shipped:

• 1 SOM-4450 System On Module CPU module

• CD-ROM or Disks for utility, drivers, and manual (in PDF format)

If any of these items are missing or damaged, contact your distributor or sales representative immediately.

Version History

June, 2002: SOM-4450 User's Manual 2nd edition (Part no. 2006445001)

Corrected error on page 10: Sec. 2.1 Connector Location X3 and X4 reversed.

September 2001, SOM-4450 User's Manual 1st edition (Part no.

2006445000)

Contents

Chapter 1 General Information .....................................

1

1.1

Introduction ....................................................................... 2

1.2

Specifications .................................................................... 3

1.2.1 Standard System On Module SBC functions .............. 3

1.2.2 Local-bus VGA interface ............................................ 3

1.2.3 Ethernet function ........................................................ 4

1.2.4 LVDS (Low Voltage Differential Signal) interface .... 4

1.2.5 Audio function ............................................................ 4

1.2.6 TV-out function .......................................................... 4

1.2.7 SSD Support ............................................................... 5

1.2.8 Mechanical and environmental .................................... 5

1.3

Board dimensions ............................................................ 6

Chapter 2 Connector Assignments and Descriptions 9

2.1

Connector Locations ..................................................... 1 0

2.2

Pin Assignments for X1, X2, X3, X4 connectors ... 11

2.3

Safety precautions .......................................................... 11

CHAPTER 3

Software Configuration (optional) ........ 13

3.1

Introduction ..................................................................... 1 4

3.2

Utility CD disk ................................................................ 1 4

3.3

VGA display software configuration ............................ 1 4

3.4

Connections for two standard LCDs ........................... 1 6

3.4.1 Connections for 640 x 480 TFT color LCD ............. 16

3.4.2 Connections for 800 x 600 TFT color LCD .............. 17

Appendix A Programming the Watchdog Timer ........ 19

A.1

Programming the watchdog timer ............................... 2 0

Appendix B System Assignments .............................. 23

B.1

System I/O ports ............................................................ 2 4

B.2

DMA channel assignments ........................................... 2 5

B.3

Interrupt assignments ................................................... 2 6

B.4

1st MB memory map ..................................................... 2 7

Appendix C LVDS Connection ................................... 29

C.1

LVDS Introduction ......................................................... 3 0

C.2

LVDS Pin assingments .................................................. 3 1

Figures

Figure 1-1: SOM-4450 dimensions ............................................................... 6

Figure 1-2: SOM-4450 Top view ..................................................................... 7

Figure 3-1: Contents of the SOM-4450 Series utility disk ............................. 14

Figure 3-2: BIOS VGA setup screen .............................................................. 15

Tables

Table B-1: System I/O ports ........................................................................................... 24

Table B-2: DMA channel assignments ........................................................................... 25

Table B-3: Interrupt assignments ................................................................................... 26

Table B-4: 1st MB memory map ...................................................................................... 27

General Information

1

This chapter gives background information on the SOM-4450 CPU System On

Module.

Sections include:

• Introduction

• Specifications

• Board Dimensions

1.1

Introduction

Advantech's SOM-ETX form factor System On Module provides a scalable solution that meets customers' advanced CPU and application development needs. The SOM-4450 incorporates a low power, fanless

GX1-300 MHz processor that has become the embedded integrators' processor of choice. It uses a NS CS5530A chipset as its VGA/LCD controller, with single 18 bit LVDS interface and 64-bit graphics engine.

The CS5530A display controller (LCD and CRT display support) allows sharp and clear LCD screen resolutions up to 1024 x 768 and CRT resolutions up to 1280 x 1024 @ 16 colors. Combined with the CS5530A system chipset is a RealTek RTL 8139 ethernet chipset. It supports all functions of an AT-compatible industrial computer. There is one

SODIMM socket that supports 16 MB to 128 MB synchronous

DRAM. The small size (95 mm x 114 mm) and use of four high capacity connectors based on the proven ETX form factor, allow the SOM-ETX modules to be easily and securely mounted onto a customized solution board or our standard SOM-DB4400 development board.

Many gains were made by using the Geode™ GX1 processor. The GX1 processor provides the lowest power consumption combined with high speed 586 processing power. This GX1 processor also supports most popular web plug-ins and leverages existing software and hardware investments. Onboard features include an ethernet interface, socket for CompactFlash™ card , Enhanced IDE interface capable of

Ultra DMA transfer protocol, one parallel port, two serial ports and a

PS/2 keyboard/mouse interface.

2 SOM-4450 User's Manual

1.2

Specifications

1.2.1 Standard System On Module SBC functions

• CPU: Onboard NS Geode GX1-300 MHz 2.0 V processor

• BIOS: Award 256KB Flash memory

• System memory: One 144-pin SO-DIMM socket accepts 64~256MB

SDRAM.

• Enhanced IDE interface: 2EIDE channels support up to 4 IDE devices. BIOS auto-detect, PIO Mode3 or Mode4, UDMA/33 transfer

• FDD interface: Support one FDD share with Parallel Port

• Serial ports: 2 serial port interfaces COM1: RS-232; COM2: RS-232

(TTL Output)

• Parallel port: One parallel port interface, supports SPP/EPP/ECP parallel mode

• Infrared port: One 115 Kbps infrared port, IrDA 1.0 compliant

• Keyboard/mouse connector: Supports standard PC/AT keyboard and PS/2 mouse interface

• USB interface: Two USB ports compliant with USB Spec. Rev.1.1

• Power management: APM 1.2 compliant

• Watchdog timer: 62 levels timer interval, reset to system. Jumperless selection and software enable/disable

1.2.2 Local-bus VGA interface

• Chipset: NS CS5530A

• Display memory: 1 ~ 4 MB share memory, set in BIOS

• Display type: Supports CRT and TTL LCDs. Able to display both

CRT and flat panel simultaneously

Chapter 1 General Information 3

• TTL LCD panel display mode: Panel resolution supports up to 1024 x

768 @ 18 bpp. Supports 18-bit TTL LCD panel

• CRT display mode: Non-interlaced CRT monitor resolutions up to

1280 x 1024 @ 256 colors or 1024 x 768 @ 16 bpp

1.2.3 Ethernet function

• Chipset: REALTEK RTL 8139 Ethernet controller

• Ethernet interface: IEEE 802.3U compatible 100/10Base-T interface.

Includes software drivers and boot ROM

1.2.4 LVDS (Low Voltage Differential Signal) interface

(SOM-4450FL only)

• Chipset: TI SN75LVDS84

• Performance: 18 low-voltage TTL data channels plus clock-in and 3 low-voltage differential data channels plus clock-out. 3.3 V and 250 mW (typical). Meets ANSI/EIA/TIA-644

Note: LVDS only on SOM-4450FL

1.2.5 Audio function

• Chipset: NS CS5530A

• Audio controller: AC97 version 2.0 compliant interface

• Audio interface: Microphone in, Line in, CD audio in, Line out,

Speaker L, Speaker R

1.2.6 TV-out function

• Chipset: CHRONTEL CH7003C

• Supports: NTSC, NTSC-EIA (Japan) and PAL TV formats, provides composite, S-video and SCART (optional) outputs via RCA (composite) connector and S-video connector.

4 SOM-4450 User's Manual

• Supports 640 x 480 and 800 x 600 input resolutions

• Over-scan, under-scan and postion adjustable (Windows 95/98 only)

• Auto detection of TV presence

1.2.7 SSD Support

• 1 CompactFlash socket on board expandable by chipDisk and external HDD (Bootable CFC HDD)

• 16 MB DOC2000 on board (optional)

1.2.8 Mechanical and environmental

• Dimensions: (L x W): 95 mm x 114 mm (3xx" x xxx")

• Weight: 74 g

• Operating temperature: 0° ~ 60° C (32 ~ 140° F)*

• Storage temperature: -40° ~ 85° C (-40 ~ 185° F)

• Operating humidity: 0% to 95% relative humidity, noncondensing

• Power supply voltage: +5 V ± 5 %

• Power requirements: Max: 4.0 A @ 5 V,

Typical: 1.5A@5V,(with 64MB DRAM,

GX1-300 MHz CPU)

* applied conditions

Chapter 1 General Information 5

1.3

Board dimensions

Figure 1-1: SOM-4450 dimensions

6 SOM-4450 User's Manual

Figure 1-2: SOM-4450 Top view

Chapter 1 General Information 7

8 SOM-4450 User's Manual

2

Connector Assignments and Descriptions

This chapter tells how to set up the SOM-

4450 hardware. It includes instructions on connecting peripherals, switches and indicators. Make sure you read all the safety precautions before you begin the installation procedure.

2.1

Connector Locations

The board has a number of connectors that allow you to configure your system to suit your application.

The tables below shows the function of each of the board's connectors:

SOM-4450 Locating Connectors

1 0 SOM-4450 User's Manual

2.2

Pin Assignments for X1, X2, X3, X4 connectors

Please refer to SOM-ETX Design and Specification Guide, Chapter 2

2.3

Safety precautions

Warning! Always completely disconnect the power cord from your board whenever you are working on it. Do not make connections while the power is on, because sensitive electronic components can be damaged by a sudden rush of power.

Caution!

Always ground yourself to remove any static charge before touching the board. Modern electronic devices are very sensitive to static electric charges. Use a grounding wrist strap at all times. Place all electronic components on a static-dissipative surface or in a static-shielded bag when they are not in the chassis.

Chapter 2 Connectors and Pin Assignments 1 1

1 2 SOM-4450 User's Manual

3

Software Configuration

(optional for SOM-4450)

This chapter details the software configuration information. It shows you how to configure the SOM-4450 card to match your application requirements. Award system BIOS is covered in Chapter 4.

Sections include:

• LCD display configuration

• Connections for two standard LCDs

3.1

Introduction

The SOM-4450 system BIOS and custom drivers are located in a 256

KB, 32-pin Flash ROM device, designated U17. A single Flash chip holds the system BIOS and VGA BIOS. The display type can be configured via software. This method minimizes the number of chips and eases configuration. You can change the display BIOS simply by reprogramming the Flash chip.

3.2

Utility CD disk

The SOM-4450 is supplied with a software utility on CD-ROM. This disk contains the necessary file for setting up the VGA display.

Directories and files on the disk are as follows:

AWDFLASH.EXE

4450Vxxx.BIN

Figure 3-1: Contents of the SOM-4450 Series utility disk

AWDFLASH.EXE

This program allows you to update the BIOS Flash ROM.

4450110.BIN

This binary file contains the system BIOS.

3.3

VGA display software configuration

The SOM-4450 on-board VGA/LCD interface supports an 18-bit TFT

LCD, flat panel displays and traditional analog CRT monitors. The interface can drive CRT displays with resolutions up to 1024 x 768 in 24 bpp. It is also capable of driving color panel displays with resolutions of 1024 x 768 in 18 bpp. The LCD type is configured completely via the software utility, so you do not have to set any jumpers. Configure the

LCD type as follows:

1 4 SOM-4450 User's Manual

1. Apply power to the SOM-4450 application with a color TFT display attached. This is the default setting for the SOM-4450 series. Make sure that the AWDFLASH.EXE and *.BIN files are located in the working drive.

Note: Make sure that you do not run AWDFLASH.EXE

while your system is operating in EMM386 mode.

2. At the prompt, type AWDFLASH.EXE and press <Enter>. The

VGA configuration program will then display the following:

Figure 3-2: BIOS VGA setup screen

3. At the prompt, type in the BIN file which supports your display.

When you are sure that you have entered the file name correctly press <Enter>. The screen will ask “Do you want to save?” If you wish to continue press Y. If you change your mind or have made a mistake press N.

4. If you decide to continue, the screen will issue a prompt which will then ask “Are you sure to program (Y/N)?” If you wish to continue, press Y. Press N to exit the program.

The new VGA configuration will then write to the ROM BIOS chip.

This configuration will remain the same until you run the

AWDFLASH.EXE program and change the settings.

Chapter 3 Software Configuration 1 5

3.4

Connections for two standard LCDs

3.4.1 Connections for Toshiba LTM10C042(640 x 480

TFT color LCD)

Table 3-1: Connections for Toshiba LTM10C042

17

18

19

20

21

22

23

10

11

12

13

14

15

16

24

25

26

27

28

29

30

31

7

8

9

4

5

6

1

2

3

LTM10C042

Pin Name

GND

CLK

GND

R0

R1

R2

GND

R3

R4

B2

GND

B3

B4

B5

GND

VDD

VDD

R5

GND

G0

G1

G2

GND

G3

G4

G5

GND

ENAB

GND

B0

B1

23

24

34

37

34

11

12

32

33

19

20

21

33

22

13

39

14

15

16

39

5

6

27

28

29

8

30

31

SOM-4450

Pin Name

3

35

4

GND

SHFCLK

GND

PD12

PD13

PD14

GND

PD15

PD16

PD2

GND

PD3

PD4

PD5

GND

+5 V

+5 V

PD10

PD11

GND

M

GND

PD0

PD1

PD17

GND

PD6

PD7

PD8

GND

PD9

1 6 SOM-4450 User's Manual

3.4.2 Connections for Toshiba LTM12C275A

(800 x 600 TFT color LCD)

B2

B3

B4

B5

GND

B0

B1

ENAB

GND

VCC

VCC

GND

G2

G3

G4

G5

R5

GND

G0

G1

R1

R2

R3

R4

NC

NC

GND

R0

22

23

24

25

19

20

21

26

27

28

29

30

15

16

17

18

11

12

13

14

7

8

9

10

5

6

3

4

Table 3-2: Connections for Toshiba LTM12C275A

1

2

LTM12C275A

Pin Name

GND

NCLK

SOM-4450

Pin

3

35

13

14

15

16

33

11

12

5

6

37

34

39

21

22

23

24

32

8

19

20

28

29

30

31

-

-

4

27

PD2

PD3

PD4

PD5

M/DE

GND

+5 V

+5 V

GND

PD8

PD9

PD10

PD11

GND

PD0

PD1

PD13

PD14

PD15

PD16

PD17

GND

PD6

PD7

Name

GND

SHFCLK

NC

NC

GND

PD12

Chapter 3 Software Configuration 1 7

1 8 SOM-4450 User's Manual

Programming the

Watchdog Timer

A

The SOM-4450 is equipped with a watchdog timer that resets the CPU or generates an interrupt if processing comes to a standstill for any reason. This feature ensures system reliability in industrial standalone or unmanned environments.

A.1 Programming the watchdog timer

• •

• •

3E

02

03

04

• •

To program the watchdog timer, you must write a program which writes

I/O port address 443 (hex). The output data is a value of time interval.

The value range is from 01 (hex) to 3E (hex), and the related time interval is 1 sec. to 62 sec.

Data

01

Time Interval

1 sec.

2 sec.

3 sec.

4 sec.

62 sec.

2 0 SOM-4450 User's Manual

•

•

•

2090

•

•

1070

2000

70

80

•

1000

30

40

50

60

After data entry, your program must refresh the watchdog timer by rewriting the I/O port 443 (hex) while simultaneously setting it. When you want to disable the watchdog timer, your program should read I/O port 443 (hex).

The following example shows how you might program the watchdog timer in BASIC:

10

20

REM Watchdog timer example program

OUT &H443, data REM Start and restart the watchdog

•

GOSUB 1000 REM Your application task #1,

OUT &H443, data REM Reset the timer

GOSUB 2000 REM Your application task #2,

OUT &H443, data REM Reset the timer

X=INP (&H443) REM, Disable the watchdog timer

END

REM Subroutine #1, your application task

•

•

RETURN

REM Subroutine #2, your application task

•

•

•

RETURN

Appendix A Programming the Watchdog Timer 21

2 2 SOM-4450 User's Manual

System Assignments

B

• System I/O ports

• DMA channel assignments

• Interrupt assignments

• 1st MB memory map

B.1

System I/O ports

Table B-1: System I/O ports

1F0-1F8

200-207

278-27F

2F8-2FF

300-31F

360-36F

378-37F

380-38F

3A0-3AF

3B0-3BF

3C0-3CF

3D0-3DF

3F0-3F7

3F8-3FF

443

Addr. range

(Hex)

000-01F

020-03F

040-05F

060-06F

070-07F mask

080-09F

0A0-0BF

0C0-0DF

0F0

0F1

0F8-0FF

170- 178

Device

DMA controller (slave)

Interrupt controller 1, (master)

8254 timer/counter

8042 (keyboard controller)

Real-time clock, non-maskable interrupt (NMI)

DMA page register,

Interrupt controller 2 (slave)

DMA controller (master)

Clear math co-processor

Reset math co-processor

Math co-processor

2nd fixed disk for CompactFlash

1st fixed disk

Game I/O

Reserved

Serial port 2

Ethernet**

LPT2

Parallel printer port 1 (LPT1)

SDLC, bisynchronous 2

Bisynchronous 1

Monochrome display

Reserved

Color/graphics monitor adapter

Diskette controller

Serial port 1

Watchdog timer

** default setting

2 4 SOM-4450 User's Manual

B.2

DMA channel assignments

Table B-2: DMA channel assignments

4

5

6

7

Channel Function

2

3

0

1

Available

Available

Floppy disk (8-bit transfer)

Parallel**

Cascade for DMA controller 1

Available

Available

Available

** Parallel port DMA default setting: DMA 3

Parallel port DMA select: DMA 1, 3

Appendix B System Assignments 2 5

B.3

Interrupt assignments

Table B-3: Interrupt assignments

Interrupt# Interrupt source

NMI

IRQ 0

IRQ 1

IRQ 2

Parity error detected

Interval timer

Keyboard

Interrupt from controller 2 (cascade)

IRQ 3

IRQ 4

IRQ 5

IRQ 6

IRQ 7

IRQ 8

Serial communication port 2

Serial communication port 1

Available

Diskette controller (FDC)

Parallel port 1 (print port)

Real-time clock

IRQ 9

IRQ 10

IRQ 11

IRQ 12

IRQ 13

IRQ 14

IRQ 15

Reserve

Available

Reserved for watchdog timer

PS/2 mouse

INT from co-processor

Preliminary IDE

Secondary IDE for CompactFlash

USB and Ethernet IRQ is automatically set by the system

2 6 SOM-4450 User's Manual

B.4

1st MB memory map

Table B-4: 1st MB memory map

Addr. range (Hex) Device

F000h - FFFFh

E000h - EFFFh

CC00h - DFFFh

C800h - CBFFh

C000h - C7FFh

B800h - BFFFh

B000h - B7FFh

A000h - AFFFh

0000h - 9FFFh

System ROM

Unused available

Ethernet ROM*

VGA BIOS

CGA/EGA/VGA text

Reserved for graphic mode usage

EGA/VGA graphics

Base memory

* default setting

Appendix B System Assignments 2 7

2 8 SOM-4450 User's Manual

LVDS Connection

C

This appendix contains information concerning the LVDS installation and pin assignments.

C.1

LVDS Introduction

When you mention the impressive data rate of 400 Mbps at 15 meters for LVDS, you immediately realize how significant the differences are between analog and digital interfaces. There are several other factors other than significantly increased data transfer rate and image quality that make LVDS (Low-Voltage Differential Signaling) very attractive to industrial users. One is that LVDS drivers and receivers maintain excellent signal levels and performance while operating on supply voltages as low as 2 V. This low voltage allows LVDSs to operate independently from the main power supply voltage. Another factor is that LVDS drivers and receivers have a low swing voltage. This voltage is typically around 345 mV. This allows LVDS devices to achieve high speeds while using relatively little power. This low differential swing voltage together with self-canceling EMI, reduces

EMI problems significantly. This is especially important in spacecritical applications. This is also why LVDS has already been widely used in Notebook computer panel connections.

All Digital Benefits

No matter which digital standard an end user uses for their industrial applications, it will have to provide the following criteria. Be compatible so that system and display products from different suppliers can be made available in an open market. Become a standard for the electronics and PC industry. Be able to transmit data over standard twisted pair cables as well as fiber optic. Maintain a low bit error rate for high quality image while operating at a very low power level. Be scalable.

Expanded Applications

With flat panel displays already a common part of our everyday lives at work, home and industrial/commercial settings, deciding on a standard is a monumental decision that will affect all our lives.

Engineers will have to champion their cause by applying both of these digital panel technologies to many practical products. Thus enabling the end user, whether it be in an industrial setting or a consumer setting, to benefit from both of these technologiesprocessor of choice.

3 0 SOM-4450 User's Manual

C.2

LVDS Pin assingments

P i n N a m e

L C D D O 0

L C D D O 1

L C D D O 2

L C D D O 3

L C D D O 4

L C D D O 5

L C D D O 6

L C D D O 7

L C D D O 8

L C D D O 9

L C D D O 1 0

L C D D O 1 1

L C D D O 1 2

L C D D O 1 3

L C D D O 1 4

L C D D O 1 5

L C D D O 1 6

L C D D O 1 7

L C D D O 1 8

L C D D O 1 9

T x c l k -

T x c l k + n o t u s e d n o t u s e d n o t u s e d n o t u s e d n o t u s e d n o t u s e d

L V D S s i g n a l

T x o u t 0 -

T x o u t 0 +

T x o u t 1 -

T x o u t 1 +

T x o u t 2 -

T x o u t 2 + n o t u s e d n o t u s e d n o t u s e d n o t u s e d n o t u s e d n o t u s e d

-

-

-

-

-

f i r s t f i r s t

C h a n n e l f i r s t f i r s t f i r s t f i r s t f i r s t f i r s t

-

-

-

-

-

-

Appendix C LVDS 3 1

8 7

8 9

9 1

8 1

8 3

8 5

7 5

7 7

7 9

6 9

7 1

7 3

9 3

9 5

9 7

9 9

6 3

6 5

6 7

5 5

5 7

5 9

6 1

4 9

5 1

5 3

4 3

4 5

4 7

C T S 2 #

T X D 2 #

R I 2 #

V C C

R X D 1

R T S 1 #

D T R 1 #

D C D 1 #

D S R 1 #

R X D 2

G N D

R T S 2 #

D T R 2 #

D C D 2 #

D S R 2 #

L T G I O 1

B I A S O N

C O M P

S Y N C

L P T / F L P Y #

V C C

/ S T B _ D R V 0

F I R

I R R X

I R T X

C T S 1 #

T X D 1

R I 1 #

G N D

3 7

3 9

4 1

3 1

3 3

3 5

2 5

2 7

2 9

1 9

2 1

2 3

1 3

1 5

1 7

9

1 1

5

7

C o n n e c t o r X 3 ( V G A , L C D , V i d e o , C O M 1 , C O M 2 , L P T / F l o p p y , I r d a , M o u s e , K e y b o a r d )

P i n

1

3

N u m b e r S i g n a l

G N D

R

P

2

4 i n N u m b e r S

G

B i g n

N a l

D

H

V

N

G

L

S

S

.

Y

Y

C

L C

L C

N

C

.

D D O 1

D D O 1

D

D D O 1

6

7

3

L C D D O 1 2

G N D

L C D D O 8

6

8

1

1

1

1

1

0

2

4

6

8

2 6

2 8

3 0

2 0

2 2

2 4

G

D D

D D

G N

L C

L

G

G

L

C

N

N

C

C K

D A

L C D D O 1

L C D D O 1

D

D D O 1

D D

D

D

D D

O 1

O 7

8

9

5

4

L C D D O 1 1

L C D D O 1 0 L C D D O 9

G N D

L C D D O 4

L C D D O 5

G N D

L C D D O 1

L C D D O 0

V C C

L T G I O 2

3

3

3

3

4

4

2

4

6

8

0

2

L

G

L

C

N

C

L C

V

L

D D

D

D D

O 6

0

D D O 2

C C

T G I O 0

3

4

4

4

5

5

5

5

5

6

6

6

6

6

7

7

7

7

7

8

8

9

9

9

9

9

1

4

6

8

0

2

4

6

8

0

2

4

6

8

0

2

4

6

8

0

8 2

8 4

8 6

8

0

2

4

6

8

0 0

B L O N #

D I G O N

Y

C

N .

C .

G N D

/ A F D _ D E N S E L

P D 7

/ E R R _ H D S E L #

P D 6 _ M O T 0

/ I N I T _ D I R #

G N D

P D 5

/ S L I N _ S T E P #

P D 4 _ D S K C H G #

P D 3 _ R D A T A #

P D 2 _ W P #

P D 1 _ T R K 0 #

P D 0 _ I N D E X #

V C C

/ A C K _ D R V 1

/ B U S Y _ M O T 1

P E _ W D A T A #

/ S L C T _ W G A T E #

M S C L K

M S D A T

K B C L K

K B D A T

G N D

3 2 SOM-4450 User's Manual