No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or
translated into any language or computer language, in any form or by any means, electronic, mechanical,
magnetic, optical, chemical, manual, or otherwise, without the prior written permission of Ampro
Computers, Incorporated.
DISCLAIMER
Ampro Computers, Incorporated makes no representations or warranties with respect to the contents of
this manual or of the associated Ampro products, and specifically disclaims any implied warranties of
merchantability or fitness for any particular purpose. Ampro shall under no circumstances be liable for
incidental or consequential damages or related expenses resulting from the use of this product, even if it
has been notified of the possibility of such damages. Ampro reserves the right to revise this publication
from time to time without obligation to notify any person of such revisions. If errors are found, please
contact Ampro at the address listed below on the Notice page of this document.
TRADEMARKS
Ampro and the Ampro logo are registered trademarks, and CoreModule, EnCore, Little Board,
LittleBoard, MiniModule, and ReadyBoard are trademarks of Ampro Computers, Inc. All other marks
are the property of their respective companies.
REVISION HISTORY
RevisionReason for ChangeDate
AInitial ReleaseMar/04
Ampro Computers, Incorporated
5215 Hellyer Avenue
San Jose, CA 95138-1007
Tel: 408 360-0200
Fax: 408 360-0222
www.ampro.com
This reference manual is for the person who designs computer related equipment, including but not
limited to hardware and software design and implementation of the same. Ampro Computers, Inc.
assumes you are qualified in designing and implementing your hardware designs and its related software
into your prototype computer equipment.
iiReference ManualCoreModule 420
Contents
Chapter 1About This Manual.........................................................................................................1
Purpose of this Manual.......................................................................................................................1
Reference Material .............................................................................................................................1
Related Ampro Products ....................................................................................................................2
Table A-1. USA Technical Support Contact Information.................................................................57
Table B-1. Connector and Manufacture’s Part Numbers ................................................................59
CoreModule 420Reference Manualv
Contents
viReference ManualCoreModule 420
Chapter 1About This Manual
Purpose of this Manual
This manual is for designers of systems based on the CoreModule™ 420 PC/104 single board computer
(SBC) module. This manual contains information that permits designers to create an embedded system
based on specific design requirements.
Information provided in this reference manual includes:
• CoreModule 420 SBC Specifications
• Environmental requirements
• Major chips and features implemented
• CoreModule 420 SBC connector/pin numbers and definition
• BIOS Setup information
Information not provided in this reference manual includes:
• Detailed chip specifications
• Internal component operation
• Internal registers or signal operations
• Bus or signal timing for industry standard busses and signals
Reference Material
The following list of reference materials may be helpful for you to complete your custom design
successfully. Most of this reference material is also available on the Ampro web site in the Embedded
Design Resource Center. The Embedded Design Resource Center was created for embedded system
developers to share Ampro’s knowledge, insight, and expertise gained from years of experience.
Specifications
• PC/104 Specifications Revision 2.5, November 2003.
For latest revision of the PC/104 specifications, contact the PC/104 Consortium, at:
Web site: http://www.pc104.org
Chip Specifications
The following chip specifications are used in the CoreModule 420 processor module:
• STMicroelectronics and the chip, STPC
Web site: http://us.st.com/stonline/books/pdf/docs/7341.pdf
• Standard Microsystems Corp and the chip, FDC37B782, used for the Super I/O controller
Web site: http://www.smsc.com/main/catalog/fdc37b78x.html
• Intel Corporation and the chip, 82551ER, used for the Ethernet controller
®
Atlas, used for the embedded CPU
Web site: http://www.intel.com/design/network/products/lan/controllers/82551er.html
CoreModule 420Reference Manual1
Chapter 1About this Manual
Related Ampro Products
The following items are directly related to successfully using the Ampro product you have just
purchased or plan to purchase. Ampro highly recommends that you purchase and utilize a CoreModule
420 QuickStart Kit simultaneously with the design of your product.
CoreModule 420 Support Products
• CoreModule 420 QuickStart Kit (QSK)
The CoreModule 420 QuickStart Kit includes the CoreModule 420 CPU, a complete cable kit,
documentation, and drivers for any Ampro supported operating systems with unique devices used
on the board.
• CoreModule 420 Development System
The CoreModule 420 Development System is a benchtop system, which provides a “known
good” environment for your development work. The Development System provides an integrated
and easy-to-use self-hosted development environment that lets you maximize the benefit of using
off-the-shelf PC-compatible modules as the basis of your embedded system design. You can
install PC/104 expansion modules or ISA bus expansion boards on the Development System
chassis. The Development System is laid out to make all the components o f your system
accessible. Refer to the CoreModule 420 Development System Users Guide on the CoreModule
420 Documentation and Support Software (Doc & SW) CD-ROM for more information.
• CoreModule 420 Documentation and Support Software CD-ROM
The CoreModule 420 Documentation and Support Software (Doc & SW) CD-ROM is provided
with the CoreModule 420 QuickStart Kit and the Development System. The CD-ROM includes
all of the CoreModule documentation, including this Reference Manual, the CoreModule 420
QuickStart Guide, and the CoreModule 420 Development System Users Guide in PDF format,
release notes, software utilities, and drivers.
Other CoreModule Products
• CoreModule 410 – This PC/104 embedded CPU is a state-of-the-art, high-integration x86-
based computer using STMicroelectronics' 133MHz STPC Elite processor, which provides a
complete embedded PC solution with most of the standard peripheral interfaces. In addition to
the standard CoreModule features (PC/104 form factor, PC/104 bus, +5 volt power, etc.), it
includes 16MB soldered SDRAM memory, watchdog timer, serial console, BIOS extensions for
OEM boot customization, and Advanced Power Management. The CoreModule 410 also offers a
Bytewide socket supporting DiskOnChip 2000 devices and a GPIO interface for customer usage.
• CoreModule 600 – This PC/104-Plus embedded single board computer (SBC) is a compact,
rugged, high integration, ultra low power 400MHz ULV Celeron processor with 256kB of
internal cache, and all of the standard peripheral interfaces. In addition to the standard
CoreModule features (PC/104 form factor, PC/104-Plus, +5 volt power, etc.), the CoreModule
600 includes 10/100BaseT Ethernet, AGP 4X video with 32MB video memory for CRT, TFT and
standard LCD flat panels, USB ports, RS232C/RS485 serial ports, and an onboard Type II
CompactFlash socket, which supports up to 1GB or more of flash memory. The CoreModule 600
also supports a watchdog timer, serial console, battery-less boot, BIOS extensions for OEM boot
customization, some power management features and up to 256MB of SDRAM memory.
Other Ampro Products
• LittleBoard Family – These high-performance, highly integrated single board computers use
the EBX form factor (5.75x8.00 inches), and are available with Pentium MMX, Pentium III, and
Celeron processors. The EBX-compliant LittleBoard single board computers offer functions
equivalent to a complete laptop or desktop PC system, plus several expansion cards. B uilt-in
extras to meet the critical requirements of embedded applications include onboard solid state disk
capability, watchdog timer, smart power monitor, and other embedded-PC BIOS enhancements.
2Reference ManualCoreModule 420
Chapter 1About this Manual
• MiniModule Family – This extensive line of peripheral interface modules, compliant with
PC/104 and PC/104-Plus standard, can be used with Ampro’s CoreModule and LittleBoard single
board computers to configure embedded system solutions. Ampro's highly reliable MiniModule
products currently support USB 2.0, IEEE 1394 (FireWire), CRT and flat panel display
interfaces, Ethernet, PC Card expansion, analog/data acquisition, FPGA, additional
RS232/RS485 serial ports, and general-purpose I/O (GPIO).
• EnCore Family – These high-performance, compact, modular CPU solutions use various
processor technologies including Intel x86, MIPS, and PowerPC architectures to plug into your
custom logic board. Each EnCore module provides standard peripherals, including IDE, floppy
drive interface, PCI bus, serial, parallel, PS/2 keyboard and mouse interfaces, 10/100BaseT
Ethernet, and USB ports. Some EnCore modules also provide video and AC97 sound.
Depending on the model, EnCore modules can hold between 16MB and 512MB of SODIMM
SDRAM memor y.
CoreModule 420Reference Manual3
Chapter 1About this Manual
4Reference ManualCoreModule 420
Chapter 2Product Overvie w
This introduction presents general information about the PC/104 architecture and the CoreModule 420
single board computer (SBC). After reading this chapter you should understand:
• PC/104 Concept
• CoreModule 420 architecture
• CoreModule 420 features
• Major components
• Connectors
• Specifications
PC/104 Architecture
The PC/104 architecture affords a great deal of flexibility in system design. You can build a simple
system using only a CoreModule 420, with input/output devices connected to its serial or parallel ports,
and a solid state disk drive or CompactFlash card in the respective bytewide socket, or CompactFlash
socket. To expand a simple CoreModule system, simply add self-stacking Ampro MiniModules or 3
party PC/104 expansion boards to provide additional capabilities, such as:
• Additional serial and p arallel ports
• Analog or digital I/O
rd
• PCMCIA interfaces
• Sound cards
PC/104 expansion modules can be stacked with the CoreModule 420 avoiding the need for card cages
and backplanes. The PC/104 expansion modules can be mounted directly to the PC/104 bus connector
of the CoreModule 420. PC/104-compliant modules can be stacked with an inter-board spacing of ~0.66
inches so that a 3-module system fits in a 3.6 inch by 3.8 inch by 2.4 inch space. See Figure 2-1.
One or more MiniModule products or other PC/104 modules can be installed on the CoreModule
expansion connectors. When installed on P1 and P2, the expansion modules fit within the CoreModule
outline dimensions. Most MiniModule products have stack through connectors compatible with the
PC/104 Version 2.5 specification. Several modules can be stacked on the CoreModule headers. Each
additional module increases the thickness of the package by 15mm (0.60”). See Figure 2-1.
4-40 nut (4)
0.6 inch spacer (4)
0.6 inch spacer (4)
PC/104 Module
CoreModule 420
PC/104 Module
PC/104 Module
Stackthrough
Expansion
Bus Headers
4-40 screw (4)
Figure 2-1. Stacking PC/104 Modules with the CoreModule 420
CM420stack
CoreModule 420Reference Manual5
Chapter 2Product Overview
Product Description
The CoreModule 420 SBC is an exceptionally high integration, high-performance, 486-based PC
compatible system in the PC/104 form factor. This rugged and high quality single board system contains
all the component subsystems of a PC/AT motherboard plus the equivalent of several PC/AT expansion
boards.
In addition, the CoreModule 420 SBC includes a comprehensive set of system extensions and
enhancements that are specifically designed for embedded systems. These enhancements ensure failsafe embedded system operation, such as, a watchdog timer. It is designed to meet the size, power
consumption, temperature range, quality, and reliability demands of embedded applications. The
CoreModule 420 requires a single +5V power source.
The CoreModule 420 SBC is particularly well suited to either embedded or portable applicatio ns. Its
flexibility makes system design quick and easy. It can be stacked with Ampro MiniModules or other
PC/104-compliant expansion, or it can be used as the computing engine in a fully customized
application.
Module Features
• CPU
♦ Supports 133MHz x86 based STPC ATLAS microprocessor
♦ Fully PC compatible architecture
♦ 8kB Unified Instruction and Data Cache
♦ Parallel Processing Integrated Floating Point Unit
♦ Low Power a nd System Management M odes
• Memory
♦ 64MB standard SDRAM (soldered on the board)
♦ 100MHz Clock Speed
♦ 32-pin bytewide memory socket
•Supports aDiskOnChip
♦ 1MB Flash memory
•Stores system BIOS
•Stores system Setup parameters and manufacturing information
•Supports battery-free boot capability
•768kB available for OEM use
®
device
• PC/104 Bus Interface
♦ Clock speeds up to 8.25MHz
• IDE Interface
♦ Supports two enhanced IDE devices
♦ Fast ATA-capable interface supports high-speed PIO modes
(PIO modes 0 to 4)
♦ Supports ATAPI and DVD peripherals
♦ Supports IDE native and ATA compatibility modes
6Reference ManualCoreModule 420
Chapter 2 Product Overview
• CompactFlash Socket
♦ Supports Type II PC card connector
♦ Supports IDE CompactFlash card
♦ Utilizes Secondary IDE bus
• Floppy Disk Controller
♦ Shared connector with parallel port
♦ Supports two floppy drives
♦ Supports all standard PC/AT formats: 360kB, 1.2MB, 720kB, 1.44MB, 2.88MB
• Serial Ports
♦ Four buffered RS232 serial ports with full handshaking and modem capability
♦ Provides 16550 or 15540-equivalent controllers, each with a built-in 16-byte FIFO buffer
♦ Ports 1 and 2 support RS232 or RS485 operation
♦ Supports programmable word length, stop bits, and parity
♦ Supports 16-bit programmable baud-rate generator and a interrupt generator
• Parallel Port
♦ Shared connector with Floppy drive port
♦ Supports standard printer port
♦ Supports IEEE standard 1284 protocols, including EPP, ECP modes
♦ Bidirectional data lines
♦ Supports 16 byte FIFO for ECP mode
• Ethe rne t Co ntr o lle r
♦ Intel 82551ER Controller chip
♦ Supports IEEE 802.3 10BaseT/100BaseT compatible physical layer
♦ Supports Auto-negotiation for speed, duplex mode, and flow control
♦ Supports full duplex or half-duplex mode
•Full-duplex mode supports transmit and receive frames simultaneously
•Supports IEEE 802.3x Flow control in full duplex mode
♦ Keyboard and PS/2 Mouse Interface
♦ Supports external battery for Real Time Clock operation
♦ Supports standard 8Ω speaker interface
♦ Supports a Reset switch
• USB Ports
♦ Supports one root USB hub
♦ Supports one USB port
♦ Supports USB v1.1 and Universal OHCI v1.1
CoreModule 420Reference Manual7
Chapter 2Product Overview
• Video (LCD/CRT) Display
Enhanced 2D graphics controller
♦ Supports BitBLT implementation for all 256 raster operations for Window support
♦ Supports all BLT transparency modes
•Bitmap transparency
•Pattern transparency
•Source transparency
•Destination transparency
♦ Supports 8, 16, 24, and 32-bit pixel depths
♦ Supports Hardware Clipping
♦ Supports fast line draw engine with Anti-aliasing
♦ Supports fast triangle fill engine
♦ Supports 4-bit Alpha blend font for Anti-aliased text display
♦ Supports 64-bit wide Pipelined architecture operating at 100MHz
♦ Supports complete double buffered registers for pipelined operation
♦ Supports video memory up to 4MB – selected in BIOS Setup
CRT
♦ VGA Controller with 135MHz triple RAMDACs for 1280 x 1024 x 75Hz display
♦ Supports 24-bit pixel depth
♦ Interlaced or non-interlaced output
LCD/TFT Controller
♦ Supports VESA Flat Panel Display interface FPDI-1B
♦ Supports programmable panel size up to 1024x768 pixel display resolution
♦ Supports VGA and SVGA active matrix TFT flat panels
♦ Support internal CRT controller for display mode settings
♦ Supports 9-, 12-, and 18-bit interface (1 Pixel/Clock)
♦ Supports 2x9-bit interface (2 Pixels/Clock)
♦ Supports programmable image position
♦ Supports 3.3V or 5V LCD panels; jumper selectable
♦ Video BIOS customization tools provided
• Miscellaneous
♦ Battery-backed real-time clock and CMOS RAM, with support for battery-free operation
♦ General Purpose I/O (GPIO)
♦ Oops! Jumper (BIOS Recovery)
♦ Serial Console (or Console Redirection)
♦ Watchdog Timer
8Reference ManualCoreModule 420
Chapter 2 Product Overview
Block Diagram
Figure 2-2 shows the functional components of the module.
Interna l PC I
Memory
(SDRAM)
Video (CRT/TFT)
Speaker
Serial Ports
(Serial 1 & 2)
CPU
Core
STPC
(Compu ter
in a Chip)
Atlas
HostPeripheral
Interface
Bus
Ethe r net
Controller
2
I C Interface
USB Port
GPIOs (8)
IDE Devices
HDD, CompactFlash,
(
CD-ROM, etc.
)
PC/104 Interface
Floppy Drive
Parallel Port
Serial Ports
(Serial 3 & 4)
ISA Bu s
RTC
Super I/O
Controller
Figure 2-2. CoreModule 420 Block Diagram
DiskOnChip
BIOS
CM420blkdiag
Utility In t e rfa c e
(Keyboard, Mouse,
External Bat. etc)
CoreModule 420Reference Manual9
Chapter 2Product Overview
Major Integrated Circuits (ICs)
Table 2-1 lists the major integrated circuits, including a brief description of each, on the
CoreModule 420 and Figure 2-3 shows the location of the major chips.
Table 2-1. Major Integrated Circuit Descriptions and Function
Chip TypeMfg.ModelDescriptionFunction
CPU (U14)STMicro-
electronics
Super I/O
Controller (U13)
Standard
Microsystems
Corp.
Ethernet
Intel82551EREthernet – This chip provides the
Controller (U15)
STPC
ATLAS
Embedded CPU – The combination of
features in the CPU provide more than
just a processor. It also provides a
graphics controller, PCI controller,
EIDE controller, I/O features, and
power management capabilities.
FDC37B782Super I/O – This chip provides serial
and Floppy controllers
10/100B aseT Etherne t function.
Embedded
CPU
Floppy/Serial
Controllers
Ethernet
CPU (U14)
Super I/O (U13)
J11
2
1
JP6
9
D8
J9
10
L5
U12
J14
10
JP7
U3
JP9
JP8
J13
J5
4
2
1
3
JP4JP5
U36
U35
1
J8
2
JP1
J3
J4
Flash
Memory (U6)
U7U9
J10
U40
U13
U11
U8
U41
U14
U10
U6
U5
D1
D2
SDRAM
Memory
U15
J2
(U7-U10)
Ethernet
U16
Controller (U15)
Ethernet
Magnetics (U16)
J7
P1
JP2
CM420RFM_01a
Figure 2-3. CoreModule 420 (Top View)
NOTEPin 1 is shown as black square or round black p i n in
connectors and jumpers in all illustrations.
10Reference ManualCoreModule 420
Chapter 2 Product Overview
Connectors, Jumpers, and LEDs
Connector Definitions
Table 2-2 describes the connectors shown in Figures 2-4 to 2-6. Refer to Appendix B for part #s.
Table 2-2. Module Connector Descriptions
Jack/Plug #AccessDescription
P1A/1B & P1C/1D –
PC/104 Bus
J2 – EthernetTop8-pin, 0.1”, connector used for the Ethernet interface
J3 – Serial 1 (COM1)Top10-pin, 0.1”, connector used for the Serial 1 interface
J4 – Floppy/ParallelTop26-pin, 0.1”, connector provides the Floppy/Parallel interface
J5 – UtilityTop10-pin, 0.1”, connector used for the Utility interface
J6 – IDETop44-pin, 2mm connector used for the IDE inte rface
J7 – PowerTop10-pin, 0.1”, connector used for the Power connection
J8 – GPIO (User)Top10-pin, 2mm connector used for the User defined GPIO signals
J9 – Serial 2 (COM2)Top10-pin, 0.1”, connector used for the Serial 2 interface
J10 – USBTop5-pin, 0.1”, connector used for the USB interface
J11 – VideoTop44-pin, 2mm connector used for the LCD/CRT interface
J12 – CompactFlashBottom50-pin connector used for CompactFlash cards
J13 – Serial 3 (COM3)Top10-pin, 0.1”, connector used for the Serial 3 interface
J14 – Serial 4 (COM4)Top10-pin, 0.1”, connector used for the Serial 4 interface
Top/
Bottom
104-pin connector used for PC/104 (ISA) bus
IDE (J6)
Serial 4 (J14)
(COM 4)
Serial 2 (J9)
(COM 2)
Vide o (J1 1 )
USB (J10)
Power (J7)
J11
Utility (J5)
U6
JP1
J3
Serial 1 (J3)
(COM 1)
Serial 3 (J13)
(COM 3)
J4
GPIO (J8)
2
1
JP6
9
10
D8
J9
L5
U12
U11
J14
10
JP7
U3
JP9
JP8
U7U9
U8
J13
J5
2
4
1
3
JP4JP5
U36
U35
1
J8
2
U10
Floppy/Parallel (J4)
U5
D1
U15
U16
D2
J2
Ethernet (J2)
J10
U40
U13
U41
U14
P1B
P1A
J7
P1
JP2
P1C
P1D
CM420RFM_01b
(PC104 Bus)
Figure 2-4. Connector Locations (Top View)
CoreModule 420Reference Manual11
Chapter 2Product Overview
Jumper Definitions
Table 2-3 describes the jumpers shown in Figure 2-5.
Table 2-3. Jumper Settings
Jumper #InstalledRemoved
JP1 Serial Port 1
Termination
JP2 Serial Port 2
Termination
JP4 & JP5
BIOS/DOC Select
JP4JP5
2
4
42
1
1
3
BIOS/DOC Select
Jumper Setting
(Shown in Default)
JP6
Flat Panel Voltage
Selection
JP7
DiskOnChip Boot
Address Select
JP8 Serial Port 1Enable Serial Port 1
JP9 Serial Port 2Enable Serial Port 2
Enable RS485 Termination
(Pins 1-2)
Enable RS485 Termination
(Pins 1-2)
Enable Internal BIOS – Normal operation,
(Pins 1-3 on both JP4 & JP5)
Enable External BIOS – Used for recovery
(Pins 1-2 on both JP4 & JP5)
Enable DOC – Boot from DiskOnChip in
bytewide socket (Pins 1-3 & 2-4 on both
Disable RS485 Termination
(No jumper) Default setting
Disable RS485 Termination
(No jumper) Default setting
Note: JP8 and JP9 Enable/Disable the Serial ports at the STPC Altas CP U (U14).
LED Definitions
Table 2-4 provides the LED color and definitions for the Ethernet Port (J2) located on the CoreModule
420 and Figure 2-5 provides the locations.
Table 2-4. Ethernet Port (J2) LED Indicators
IndicatorDefinition
Ethernet
Link/Activity LED (D1)
Ethernet Speed (D2)
Link/Activity LED – This yellow LED is the activity/link
indicator and provides the status of Ethernet port (J2).
The Link/Activity LED indicates an Link is established with
either transmit or receive activity.
Yellow On – This indicates a link is present.
Yellow Flashing – This indicates activity is present.
Yellow Off – This indicates no link or activity is prese nt.
Speed LED – This green LED is the LAN Speed indictor and
indicates the
transmit or receive speed of Ethernet port (J2).
Green On – This indicates the operating speed is 100Mbps
Green Off – This indicates the operating speed is 10Mbps.
12Reference ManualCoreModule 420
Chapter 2 Product Overview
JP6
J11
JP9
2
1
JP6
9
D8
J9
10
L5
U12
JP8JP7
J14
10
JP7
U3
JP9
JP8
J13
JP5
4
3
U36
JP4JP5
1
J8
2
JP4
J5
U35
2
1
JP1
JP1
J3
J4
Bytewide
U7U9
U11
U40
U41
U8
U10
U6
Socket (U5)
Pin-1
U5
D1
D2
Link/Activity
LED (D1)
Speed
LED (D2)
JP2
CM420RFM_01c
J10
U14
U15
J2
U13
U16
J7
P1
JP2
Voltage
Regulator
(U19)
Figure 2-5. Jumper and LED Locations (Top View)
D3
D4
CompactFlash
Socket (J12)
U19
U37
U20
U22
U23
U29
Y1
U38
U24
U1
U21
D5
U42
J12
U25
Y3
U27
F1
USB Fuse (F1)
Y2
U28
U30
PC/104 Bus (P1)
CM420RFM_02a
Figure 2-6. Connector Location (Bottom View)
CoreModule 420Reference Manual13
Chapter 2Product Overview
Specifications
Physical Specif ications
Table 2-5 gives the physical dimensions of the module and Figure 2-7 gives the mounting dimensions.
Table 2-5. Weight and Footprint Dimensions
ItemDimension
Weight
Height (upper surface)
Width
Length
Mechanical Spe cifications
0.150
0.400
JP6
3.575
3.431
3.375
3.281
2.890
2.580
0.000
J9
J11
92.5g. (0.204lbs.)
10.99 mm (0.43 inches)
See also Note on page 15.
90.2 mm (3.6 inches)
95.9 mm (3.8 inches )
1.160
J6
9
10
JP9
JP7
J14
JP8
10
J13
NOTEHeight is measured from the
upper surface of the board
to the highest permanent
component on the upper
surface of the board.
2.100
1.800
4
3
2.375
J5
2
1
JP4JP5
1
J8
2
J3
3.050
3.105
JP1
3.400
3.375
3.190
3.100
2.500
J4
CPU
0.940
0.700
0.300
0.000
-0.010
-0.200
-0.200
-0.030
J10
-0.020
0.000
J7
0.050
0.280
0.850
Figure 2-7. Mechanical Dimensions (Top View)
U14
P1B
P1A
P1C
P1D
JP2
J2
0.394
0.000
3.350
3.150
3.112
NOTEAll dimensions are given in inches. Pin 1 is shown as a black square or black
round pin in connectors and jumpers in all illustrations.
CM420RFM_01d
14Reference ManualCoreModule 420
Chapter 2 Product Overview
NOTEThe CoreModule 420 is in violation of the PC/104 height limitations in two
places on the bottom of the board. The voltage regulator (U19) exceeds the
allowed height limitation by 0.085 inches and the CompactFlash socket (J12)
exceeds the height limitation by 0.2 inches. See Figure 2-6.
Power Specifications
Table 2-6 provides the power requirements.
Table 2-6. Power Supply Requirements
ParameterCharacteristics
Input TypeRegulated DC voltages
Input Voltage
Requirements
Operating Power6.75 Watts (typical)
Note: Current readings were taken with all peripheral devices connected or simulated using the
Windows 2000 operating system.
+5 VDC +/- 5% @ 1.35 Amps (typical)
Environmental Specificat ions
Table 2-7 provides the most efficient operating and storage condition ranges required for this module.
Table 2-7. Environmental Requirements
ParameterConditions
Temperature
Operating
Extended (Optional)
Storage
Humidity
Operating20% to 80% relative humidity, non-condensing
Non-operating5% to 95% relative humidity, non-condensing
+0° to +70° C (32° to 158° F)
–40° to +85° C (–40° F to +185° F)
–55° to +85° C (–67° F to +185° F)
Thermal/Cooling Requirem ents
The CPU requires a heatsink (provided).
CoreModule 420Reference Manual15
Chapter 2Product Overview
16Reference ManualCoreModule 420
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