GATEWORKS GW2348-4 Operating Manual

AVILA

NETWORK COMPUTER

Operating Manual

For

GW2348-4 Network Processor

Document #10000545

Revision 00

14 February 2006

Copyright 2006

Avila Network Computer Operating Manual

TABLE OF CONTENTS

1. INTRODUCTION............................................................................................................................... 4

1.1. Product Description.................................................................................................................... 4

1.2. Standard Features....................................................................................................................... 4

1.3. Ordering Options – Standard Configuration* ............................................................................ 4

1.4. Functional Blocks........................................................................................................................ 5

Processor............................................................................................................................................... 6

SDRAM................................................................................................................................................ 6

Flash...................................................................................................................................................... 6

Compact Flash ...................................................................................................................................... 7

Mini-PCI Sockets.................................................................................................................................. 7

Ethernet................................................................................................................................................. 7

EEPROM.............................................................................................................................................. 7

Real Time Clock................................................................................................................................... 7

Temperature and Voltage Monitor........................................................................................................ 8

Fan Speed Controller ............................................................................................................................ 8

Serial I/O............................................................................................................................................... 8

Digital I/O............................................................................................................................................. 8

USB....................................................................................................................................................... 8

JTAG Programming Port...................................................................................................................... 9

Status LED and Push Button Reset....................................................................................................... 9

DC/DC Converter ................................................................................................................................. 9

2. CONFIGURATION AND INSTALLATION................................................................................. 10

2.1. Memory Mapping...................................................................................................................... 10

2.2. PCI Device Mapping................................................................................................................. 11

2.3. Interrupt Mapping..................................................................................................................... 11

2.4. Digital I/O Mapping.................................................................................................................. 12

2.5. Interface Connectors................................................................................................................. 13

Mini-PCI Sockets (J1, J2, J3, J4)........................................................................................................ 15

Compact Flash Socket (J5) ................................................................................................................. 17

COM2 Serial Port Header (J6)............................................................................................................ 18

JTAG Port Header (J7)....................................................................................................................... 18

Digital I/O Header (J8)....................................................................................................................... 18

Power Connector (J9) ......................................................................................................................... 19

Ethernet Connectors (J10, J11)........................................................................................................... 19

COM1 Serial Port Connector (J13)..................................................................................................... 20

Fan Controller (J14)............................................................................................................................ 20

Optional Dual USB Host Connector (J18)..........................................................................................21

2.6. Input Voltage Selection.............................................................................................................. 21

2.7. JTAG Programming.................................................................................................................. 21

2.8. Getting Started .......................................................................................................................... 22

2.9. Manufactures Website Links / Support Mailing List ................................................................. 22

Hardware............................................................................................................................................. 23

Software.............................................................................................................................................. 23

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3. SPECIFICATIONS........................................................................................................................... 24

3.1. Electrical................................................................................................................................... 24

3.2. Mechanical................................................................................................................................ 24

3.3. Environmental........................................................................................................................... 24

4. CUSTOMER SUPPORT.................................................................................................................. 25

4.1. Product Revision History .......................................................................................................... 25

4.2. Technical Assistance ................................................................................................................. 25

4.3. Warranty.................................................................................................................................... 25

4.4. Return for Repair....................................................................................................................... 25

4.5. Life Support Policy.................................................................................................................... 26

4.6. Trademarks................................................................................................................................ 26

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1. INTRODUCTION

1.1. Product Description

The GW2348-4 is a member of the Gateworks Avila Network Processor family.
The GW2348-4 meets the requirements for enterprise and residential network
applications. This single board network processor consists of an Intel IXP425
XScale processor operating at 533MHz, 64Mbytes of SDRAM, and 16Mbytes of
Flash. Peripherals include four Type III Mini-PCI slots, two 10/100 Base-TX
Ethernet channels, Compact Flash socket, and two RS232 serial ports for
management and debug. Additional features include serial EEPROM, real time
clock, voltage and temperature monitor, fan controller, watchdog timer, passive
power over Ethernet, digital I/O, wide range DC/DC power supply, and extended
temperature operation. An optional high-speed USB host controller is also
available. Software support includes Linux and VxWorks operating systems.

1.2. Standard Features

 Intel XScale IXP425 533MHz Processor
 64Mbytes SDRAM
 16Mbytes Flash
 Four Type III Mini-PCI Sockets
 Two 10/100 Base-TX Ethernet Ports
 Compact Flash Socket
 Two RS-232 Serial Ports
 General Purpose Digital I/O
 1Kbyte Serial EEPROM
 Battery Powered Real Time Clock
 Voltage and Temperature Monitor
 Thermally Activated Fan Controller
 Watchdog Timer
 User LED and Push Button Reset
 Optional High-speed USB Host Controller
 Passive Power Over Ethernet
 Reverse Voltage and Transient Protection
 9-48VDC Input Voltage Range
 18W available for Mini-PCI Sockets
 5W Typical Operating Power
 -40C to 85C Operating Temperature
 Software Support for Linux and VxWorks
 1 Year Warranty

1.3. Ordering Options – Standard Configuration*

Order Code Processor SDRAM Flash Mini-PCI Operating Temp.
GW2348-4 IXP425 @ 533MHz 64Mbytes 16Mbytes 4

* Contact factory for different configurations of CPU, DRAM, Flash, and support peripherals

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-40C to 85C

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1.4. Functional Blocks

The functional block diagram for the GW2348-4 network processor is shown
below followed by a detailed description of each major functional block.

MINI-PCI
SOCKET

MINI-PCI
SOCKET

MINI-PCI
SOCKET

MINI-PCI
SOCKET

SDRAM

64Mbytes

PROCESSOR

XSCALE

IXP425@533MHZ

FLASH

16Mbytes

ETHERNET
10/100 PHY

ETHERNET
10/100 PHY

DC/DC

CONVERTER

9-48V@23W

POWER

SERIAL EEPROM
REAL TIME CLOCK
SYSTEM MONITOR
FAN CONTROLLER

RS-232

COMPACT

FLASH

SOCKET

RS232

DIO

JTAG

STATUS LED

GW2348-4 Functional Block Diagram

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Processor

The Intel Xscale network processor line includes the IXP420, IXP422 and
IXP425 processors. The features common to these processors are listed below.
The primary difference between these processors is support for encryption,
operating speed, operating temperature and cost. See the following table below
for the differences between the processor families. The factory default GW2348­4 includes the IXP425 processor.

 StrongARM Version 5TE Compliant
 Network processing engines to offload Ethernet filtering
 32-bit SDRAM interface operating at 133MHz
 32-bit PCI interface operating at 33MHz for Mini-PCI support
 16-bit Expansion interface for Flash support
 Two 802.3 MII/RMII interfaces for Ethernet PHY support
 USB 1.1 device controller
 Two serial ports
 Four internal timers
 Internal bus performance monitoring unit
 General purpose Input/Outputs
 Watchdog Timer

Feature IXP420 IXP422 IXP425

Speed (MHz) 266, 400, 533 266 266, 400, 533
Hardware Encryption No Yes Yes
Extended Temperature 266 only No 266, 400, 533
Cost Low Mid High

IXP42x Processor Feature Comparison

SDRAM

The DRAM resides in two synchronous DRAM devices soldered directly to the
board. This architecture supports SDRAM memory capacities from 32Mbytes up
to 128Mbytes. The 32-bit SDRAM interface operates at 133MHz. The factory
default GW2348-4 includes 64Mbytes of SDRAM.

Flash



The Flash resides in one or two J3 Intel StrataFlash

devices soldered directly to
the board. This architecture supports Flash memory capacities from 4Mbytes up
to 32Mbytes. The factory default GW2348-4 includes 16Mbytes of Flash in a
single device.

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Compact Flash

The GW2348-4 supports a single Compact Flash socket located on the rear of
the board. The Compact Flash socket accepts small removable mass storage
cards with storage capacities up to 4Gbytes. The Compact Flash interrupt is
mapped to general purpose I/O 12 (GPIO12) of the IXP processor.

Mini-PCI Sockets

Mini-PCI is a small form factor PCI card that uses the same signal protocol,
electrical specifications, and configuration definitions as conventional PCI. The
GW2348-4 includes four Mini-PCI sockets. The GW2348-4 increases the Mini­PCI power specification from a maximum of 2.5W to a total of 18W for all four
sockets. This permits each socket to operate 4.5W for supporting high power
radios.

Ethernet

The GW2348-4 supports two Ethernet ports using an Intel LXT973 PHY
Transceiver. Both channels operates in a 100BASE-TX or 10BASE-T
configuration and support auto MDI/MDIX for automatically switching twisted pair
inputs and outputs. Additional features include full-duplex operation for both
10Mbps and 100Mbps configurations as well as support for auto-negotiation. The
Ethernet ports are available through standard RJ45 connectors. The connectors
have two integrated status lights. The green status light indicates link and
activity. The light is on for link and blinking for activity. The yellow status light
indicates speed. The light is on for 100Mbps and off for 10Mbps.

EEPROM

The Atmel AT24C08AN is an Electrically Erasable Programmable Read Only
Memory (EEPROM) with 8Kbits of storage. The 8kbits of storage is organized in
a 1048 x 8-bit configuration. Additional features include 1,000,000 erase/write
cycles and a 100-year minimum data retention time. Data is transmitted to and
from the EEPROM over the processor I2C bus. The I2C clock frequency is 0 to
400KHz. The I2C base address is A0 hex for writes and A1 hex for reads.

Real Time Clock

The Dallas Semiconductor DS1672 is designed to count seconds and can be
used to derive time-of-day, week, month, and year using software. A battery
ensures uninterrupted operation when the main power supply drops below the
battery voltage. The battery capacity is 35mAH. The real time clock requires

0.425 micro amps typical and 1 micro amp maximum for backup operation. This
results in a battery life of 4 years minimum and more than 9 years typical. Data is
transmitted to and from the Real Time Clock over the processor I2C bus. The I2C
clock frequency is 0 to 400KHz. The I2C base address is D0 hex for writes and
D1 hex for reads.

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Temperature and Voltage Monitor

The Analog Devices AD7418 provides temperature and voltage monitoring
capability. The GW2348-4 operating temperature is monitored through this
device. The temperature accuracy is 1C at 25C and 2C over the entire
temperature range of -40C to +125C. The GW2348-4 input voltage is also
monitored through this device. A resistor divider is used on the A/D input to scale
the input voltage down. Multiple the A/D voltage reading by 23.1 to get the actual
input voltage. Data is transmitted to and from the Temperature and Voltage
Monitor over the processor I2C bus. The I2C clock frequency is 0 to 400KHz.
The I2C 7-bit base address is 50 hex for writes and 51 hex for reads.

Fan Speed Controller

Fan speed control increases fan service life and decreases system acoustic
airflow noise. The GW2348-4 includes a Microchip TC653BE that controls the
speed of a fan based on temperature. This device keeps the fan off until the
GW2348-4 temperature reaches 35 degrees Celsius. The controller adjusts the
fan speed from 50% to 100% between 35 and 45 degrees Celsius.

Serial I/O

The GW2348-4 includes two RS232 serial I/O ports. One serial I/O port is
available through a 10-pin header and the other is available through a 9-pin
female D-shell connector. The serial ports are 16550-compliant UARTs with
additional depth for both the transmit and receive buffers. The interface supports
transfer rates from 1200bps up to 120Kbps.

Digital I/O

The IXP processor includes a 16 bits of digital I/O. Some of these signals are
used for controlling and monitoring the status of devices local to the GW2348-4
and some of them are available on a 10-pin header for application use. The
function of each digital I/O signal is described in Section 2, Configuration and
Installation.

USB

The GW2348-4 includes an optional high-speed USB host controller. The Philips
ISP1562 integrates two Open Host Controller Interface (OHCI) cores, one
Enhanced Host Controller Core (EHCI), and two transceivers. The transceivers
support high-speed transfer mode at 480Mbits per second, full-speed transfer
mode at 12Mbits per second, and low-speed transfer mode at 1.5Mbits per
second. The GW2348-4 also includes a Micrel MIC2026 power distribution switch
to enable 5V power to the USB connector under control of the ISP1562. The
MIC2026 includes internal thermal and over current limiting to protect both the
GW2348-4 and the USB load. The USB signals are available through a standard
dual USB Type A connector. The USB Controller shares resources with the J2
mini-PCI site so that only one is functional at a time. If the USB Host Controller is
loaded, the J4 mini-PCI site is not functional and should not be populated.

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JTAG Programming Port

A JTAG debug port is available to facilitate program download directly into Flash
memory. See section 2.7 for instructions on using the Gateworks JTAG
Programmer.

Status LED and Push Button Reset

The GW2348-4 includes a status LED and a push button for generating reset.
The LED is connected to general purpose I/O 3 (GPIO3).

DC/DC Converter

A switching DC/DC converter supplies power to the GW2348-4. This allows
support for a wide input voltage range and higher power radios with high
efficiency operation. The DC/DC has a minimum input voltage of 9VDC and a
maximum of 48VDC. DO NOT EXCEED THE 48VDC INPUT MAXIMUM OR
DAMAGE MAY OCCUR TO THE BOARD. The input power is supplied through
a power connector or through the RJ45 Ethernet connector in a power over
Ethernet configuration. The voltage drop due to the resistance of the Ethernet
cable between the GW2348-4 and the power injector must be considered when
selecting the power supply operating voltage. The input is protected against
reverse voltage connection and transient voltage spikes. Refer to Section 2, Input
Voltage Selection, for additional information on choosing an input voltage.

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2. CONFIGURATION AND INSTALLATION

The following section gives memory, interrupt, I2C and digital I/O mappings
specific to the GW2348-4. See the Intel IXP4XX Product Line and IXC1100
Control Plane Processors Developer’s Manual for more information on these
interfaces.

2.1. Memory Mapping

The memory map and Expansion bus chip select mapping for the GW2348-4 is
shown below.

Memory Address Size Description

0000_0000 – 0FFF_FFFF 256Mbyte Flash Memory (32Mbyte max)
0100_0000 – 2FFF_FFFF 756Mbyte SDRAM Memory (128 Mbyte max)
3000_0000 – 3FFF_FFFF Reserved
4000_0000 – 47FF_FFFF Reserved
4800_0000 – 4FFF_FFFF 128Mbyte PCI Bus
5000_0000 – 5FFF_FFFF 256Mbyte Expansion Bus
6000_0000 – 63FF_FFFF 64Mbyte Queue Manager
6400_0000 – BFFF_FFFF Reserved
C000_0000 – C3FF_FFFF 64Mbyte PCI Controller Configuration and Status
C400_0000 – C7FF_FFFF 64Mbyte Expansion Bus Configuration
C800_0000 – C800_0FFF 1Kbyte High Speed Serial
C800_1000 – C800_1FFF 1Kbyte Console Serial
C800_2000 – C800_2FFF 1Kbyte Performance Monitor
C800_3000 – C800_3FFF 1Kbyte Interrupt Controller
C800_4000 – C800_4FFF 1Kbyte GPIO Controller
C800_5000 – C800_5FFF 1Kbyte Timers
C800_6000 – C800_6FFF 1Kbyte Wan/HSS Network Processor A
C800_7000 – C800_7FFF 1Kbyte Ethernet Network Processor B
C800_8000 – C800_8FFF 1Kbyte Ethernet Network Processor C
C800_9000 – C800_9FFF 1Kbyte Ethernet MAC A
C800_A000 – C800_AFFF 1Kbyte Ethernet MAC B
C800_B000 – C800_BFFF 1Kbyte USB Device Controller – Not Used
C800_C000 – C800_FFFF Reserved
C801_0000 – CBFF_FFFF Reserved
CC00_C000 – CC00_00FF 256byte SDRAM Configuration Registers
CC00_0100 – FFFF_FFFF Reserved

Note: The bottom 256Mbytes is configurable through bit 31 of the EXP_CONFG0 register.

Memory Map

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Chip

Select

CS0 Flash Memory (U3)
CS1 Compact Flash Socket #CS0 (J5)
CS2 Compact Flash Socket #CS1 (J5)
CS3 Flash Memory (U4)

CS4-CS7 Not Used

Description

Expansion Bus Chip Selects

2.2. PCI Device Mapping

The GW2348-4 PCI device mapping is listed below.

Bus

Number

00 01 0 28 Mini-PCI Slot (J3)
00 02 0 27 Mini-PCI Slot (J1)
00 03 0 26 Mini-PCI Slot (J4)
00 04 0 25 Mini-PCI Slot (J2)
00 05 0-2 28 Optional USB Host Controller (J18)

Device

Number

Fcn

Number

IRQ

Number

PCI Device Map

Description

2.3. Interrupt Mapping

The IXP42X processor allows for 32 interrupts which originate from either internal
processor blocks or from the 14 dedicated GPIO pins. The interrupt mapping is
shown below.

Interrupt Function

0 WAN/HSS NPE
1 Ethernet NPE A
2 Ethernet NPE B
3 Queue Manager (1-32)
4 Queue Manager (33-64)
5 General Purpose Timer 0
6 GPIO(0) – GPIO Header (J8)
7 GPIO(1) – GPIO Header (J8)
8 PCI Interrupt

9 PCI DMA Channel 1
10 PCI DMA Channel 2
11 General Purpose Timer 1
12 Device USB – Not Supported
13 Console Serial
14 Timestamp Timer
15 High-Speed Serial
16 Watchdog Timer
17 Performance Monitoring Unit
18 Performance Monitoring Unit
19 GPIO(2) – GPIO Header (J8)

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20 GPIO(3) – GPIO Header (J8)
21 GPIO(4) – GPIO Header (J8)
22 GPIO(5) – Reserved for Serial Transceiver Control
23 GPIO(6) – Reserved for I2C Bus SCL
24 GPIO(7) – Reserved for I2C Bus SDA
25 GPIO(8) - Mini-PCI Socket J2 INTA or Mini-PCI

Socket J4 INTB

26 GPIO(9) - Mini-PCI Socket J4 INTA or Mini-PCI

Socket J1 INTB

27 GPIO(10) - Mini-PCI Socket J1 INTA or Mini-PCI

Socket J3 INTB

28 GPIO(11) - Mini-PCI Socket J3 INTA or Mini-PCI

Socket J2 INTB or USB Host Controller
29 GPIO(12) – Compact Flash Socket
30 SW Interrupt 0
31 SW Interrupt 1

Interrupt Map

2.4. Digital I/O Mapping

The GW2348-4 uses the IXP42x Processor digital I/O for controlling and
monitoring the status of various devices. The IXP42x processor includes three
16-bit registers for configuring, initializing, and using the digital I/O. The output
enable register (GPOER) configures each bit as an input or output. The data
output register (GPOUTR) controls the digital I/O configured as outputs. The
input register (GPINR) reads the digital I/O configured as inputs. See the Intel

IXP4XX Product Line and IXC1100 Control Plane Processors Developer’s
Manual – Chapter 13. The digital I/O bit mapping is shown below.

GPIO Bit Direction Description

0 In or Out Digital I/O Header J8 pin 1
1 In or Out Digital I/O Header J8 pin 3
2 In or Out Digital I/O Header J8 pin 5

In or Out Digital I/O Header J8 pin 7 or

Out Unpopulated Status LED D20 or 3
Out Status LED D21

4 In or Out Digital I/O Header J8 pin 9
5
6 Out I2C Bus SCL

7 Bidirectional I2C Bus SDA
8 In Unpopulated Mini-PCI Interrupt

9 In Mini-PCI Interrupt – See IRQ Map Section 2.3
10 In Mini-PCI Interrupt – See IRQ Map Section 2.3
11 In Mini-PCI Interrupt – See IRQ Map Section 2.3
12 In Unpopulated Compact Flash Interrupt
13 Out PCI Reset
14 Out Unpopulated Watchdog Timer Strobe
15 Out Expansion Bus Clock

Out RS232 Serial Port Driver Enable or
Out Unpopulated Status LED D19

Digital I/O Map

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2.5. Interface Connectors

The GW2348-4 interface connector pin assignments and signal descriptions are
included in the following sections. The connectors are listed in the table below
and the connector locations are shown in the following diagrams.

Connector Populated Function

J1 Yes Mini-PCI Socket Top Side
J2 Yes Mini-PCI Socket Bottom Side
J3 Yes Mini-PCI Socket Top Side
J4 Yes Mini-PCI Socket Bottom Side
J5 Yes Compact Flash Socket Bottom Side
J6 Yes COM2 Serial Port
J7 Yes JTAG Port
J8 Yes Digital I/O

J9 Yes 2.5mm Barrel Jack Power
J10 Yes Ethernet1
J11 Yes Ethernet2
J12 – Not Used
J13 Yes COM1 Serial Port
J14 Yes Fan Controller
J15 – Not Used
J16 No Auxiliary Power
J17 No Auxiliary Power
J18 No Optional Dual USB Host Connector
J19 No High Speed Serial Mezzanine

Connectors

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Mini-PCI Socket (J3)

(

)

System SDRAM

Avila Network Computer Operating Manual

Serial Port 1 (J13)
GPIO Port (J8)

JTAG Port (J7)
Serial Port 2 (J6)

USB Host (J18)

IXP Processor

System Flash

Mini-PCI Socket (J1)

Fan Control (J14)

Top Side Component Locations

Mounting Holes

4 places

User Status LED
Push Button Reset

Ethernet 2 (J11)

Ethernet 1 (J10)
Power (J9)

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Compact Flash (J5)

Mini-PCI (J4)

Bottom Side Component Locations

Mini-PCI Sockets (J1, J2, J3, J4)
There are four Mini-PCI sockets for expanding the peripheral support with high­speed PCI devices. The GW2348-4 supports standard 3.3V Mini-PCI cards.
Support is not provided for audio, modem, and networking sideband signaling as
defined in the Mini-PCI specification. The GW2348-4 Mini-PCI connector
signaling is illustrated in the following table. The power supply provides a total of
18W of 3.3V power to the Mini-PCI sockets for supporting high power radios.

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Pin Signal Connect Pin Signal Connect Pin Signal Connect

1 TIP NC 44 AD26 AD26 87 AD7 AD7
2 RING NC 45 CBE3# CBE3# 88 VCC3 VCC3
3 LANRXP NC 46 AD24 AD24 89 VCC3 VCC3
4 LANTXP NC 47 AD23 AD23 90 AD6 AD6
5 LANRXN NC 48 IDSEL IDSEL 91 AD5 AD5
6 LANTXN NC 49 Ground Ground 92 AD4 AD4
7 LANRSV NC 50 Ground Ground 93 Reserved Reserved
8 LANRSV NC 51 AD21 AD21 94 AD2 AD2

9 LANRSV NC 52 AD22 AD22 95 AD3 AD3
10 LANRSV NC 53 AD19 AD19 96 AD0 AD0
11 LANGNP NC 54 AD20 AD20 97 VCC5 NC
12 LANRNN NC 55 Ground Ground 98 Reserved Reserved
13 LANYEP NC 56 PAR PAR 99 AD1 AD1
14 LANYEN NC 57 AD17 AD17 100 Reserved Reserved
15 CHSGND CHSGND 58 AD18 AD18 101 Ground Ground
16 Reserved Reserved 59 CBE2# CBE2# 102 Ground Ground
17 INTB# INTB# 60 AD16 AD16 103 ACSYNC NC
18 VCC5 NC 61 IRDY# IRDY# 104 M66EN NC
19 VCC3 VCC3 62 Ground Ground 105 ACDIN NC
20 INTA# INT# 63 VCC3 VCC3 106 ACDOUT NC
21 Reserved Reserved 64 FRAME# FRAME# 107 ACCLK NC
22 Reserved Reserved 65 CLKRUN# Pull Down 108 ACID0 NC
23 Ground Ground 66 TRDY# TRDY# 109 ACID1 NC
24 VCC3AX VCC3 67 SERR# SERR# 110 ACRST NC
25 CLK CLK 68 STOP# STOP# 111 AMON NC
26 RST# RST# 69 Ground Ground 112 Reserved Reserved
27 Ground Ground 70 VCC3 VCC3 113 AGND NC
28 VCC3 VCC3 71 PERR# PERR# 114 Ground Ground
29 REQ# REQ# 72 DEVSEL# DEVSEL# 115 AOUT NC
30 GNT# GNT# 73 CBE1# CBE1# 116 AIN NC
31 VCC3 VCC3 74 Ground Ground 117 AGND NC
32 Ground Ground 75 AD14 AD14 118 AINGND NC
33 AD31 AD31 76 AD15 AD15 119 AGND NC
34 PME# NC 77 Ground Ground 120 AGND NC
35 AD29 AD29 78 AD13 AD13 121 Reserved Reserved
36 RSVD RSVD 79 AD12 AD12 122 MPCIACT NC
37 Ground Ground 80 AD11 AD11 123 VCC5AX NC
38 AD30 AD30 81 AD10 AD10 124 VCC3AX VCC3
39 AD27 AD27 82 Ground Ground 125 CHSGND CHSGND
40 VCC3 VCC3 83 Ground Ground 126 CHSGND CHSGND
41 AD25 AD25 84 AD9 AD9 127 NC NC
42 AD28 AD28 85 AD8 AD8 128 NC NC
43 Reserved Reserved 86 CBE0# CBE0#

Mini-PCI Connector

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Compact Flash Socket (J5)

The pin assignment for the industry standard Compact Flash socket is shown
below. The Compact Flash is connected to the expansion bus on the IXP
processor. The GW2348-4 Compact Flash connector signaling is illustrated in the
following table. The Compact Flash interrupt is connected to general purpose I/O
12 (GPIO12) of the IXP processor.

Pin Signal Connect Pin Signal Connect

1 Ground Ground 26 CD1# No Connect
2 D3 EXP D3 27 D11 EXP D11
3 D4 EXP D4 28 D12 EXP D12
4 D5 EXP D5 29 D13 EXP D13
5 D6 EXP D6 30 D14 EXP D14
6 D7 EXP D7 31 D15 EXP D15
7 CS0# EXP CS1# 32 CS1# EXP CS2#
8 A10 EXP A10 33 VS1# No Connect

9 ATASEL# Ground 34 IORD# EXP RD#
10 A09 Ground 35 IOWR# EXP WR#
11 A08 Ground 36 WE# Pull Up
12 A07 Ground 37 INTRQ No Connect
13 VCC VCC 38 VCC VCC
14 A06 Ground 39 CSEL# Ground
15 A05 Ground 40 VS2# No Connect
16 A04 Ground 41 RESET# RESET#
17 A03 Ground 42 IORDY# No Connect
18 A02 EXP A2 43 INPACK# No Connect
19 A01 EXP A1 44 REG# Pull Up
20 A00 EXP A0 45 DASP# No Connect
21 D00 EXP D0 46 PDIAG# No Connect
22 D01 EXP D1 47 D08 EXP D8
23 D02 EXP D2 48 D09 EXP D9
24 IOCS16# No Connect 49 D10 EXP D10
25 CD2# No Connect 50 GND GND

Compact Flash Connector

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COM2 Serial Port Header (J6)

The COM2 serial port is available through a 10-pin header in a 2x5 configuration
with 0.1-inch pin spacing. The mating connector is an AMP/Tyco 746288-1,
available from Digi-Key as part number AKN10A-ND. The pin assignment
supports a ribbon cable connection to a standard 9-pin D-shell connector.

Pin Signal Pin Signal

1 No Connect 2 No Connect
3 Transmit Data 4 Clear To Send
5 Receive Data 6 Request To Send
7 No Connect 8 No Connect
9 Ground 10 No Connect

COM2 Serial Port Header

JTAG Port Header (J7)

The JTAG programming port is available through a 14-pin header in a 2x7
configuration with 0.1-inch pin spacing. The mating connector is an AMP/Tyco
746288-2, available from Digi-Key as part number AKN14A-ND. The primary
purpose for the JTAG Port is to facilitate program download into Flash memory.
This feature requires the GW16012 JTAG Programmer. The JTAG programming
port also includes a three-wire configuration of Serial Port 1. This feature requires
the GW16027 JTAG Serial Adapter to convert the 3.3V serial port signals to
standard RS232 levels.

Pin Signal Pin Signal

1 3.3V 2 COM1 RXD (3.3V)
3 JTAG RST 4 Ground
5 JTAG TDI 6 Ground
7 JTAG TMS 8 Ground

9 JTAG TCK 10 Ground
11 JTAG TDO 12 Board Reset
13 COM1 TXD (3.3V) 14 Ground

Digital I/O Header (J8)

The digital I/O is available through a 10-pin header in a 2x5 configuration with

0.1-inch pin spacing. The mating connector is an AMP/Tyco 746288-1, available
from Digi-Key as part number AKN10A-ND. Note that GPIO3 is shared with the
status LED as described in Section 2, Digital I/O Mapping.

JTAG Port Header

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Pin Signal Pin Signal

1 GPIO0 2 Ground
3 GPIO1 4 Ground
5 GPIO2 6 Ground
7 GPIO3 8 Ground
9 GPIO4 10 Ground

Digital I/O Header

Power Connector (J9)

Power is applied to the GW2348-4 through a standard 2.5mm x 5.5mm barrel
jack or through either Ethernet Connector. The input voltage range is 9VDC
minimum and 48VDC maximum. The power jack should have the positive input
voltage on the inner sleeve and ground on the outer sleeve. The mating
connector is a G/S SR2048A, available from Jameco as part number 190537CJ.
The schematic symbol representing this configuration is shown below.

Power Connector

Ethernet Connectors (J10, J11)

The GW2348-4 contains two 10/100 Base-TX Ethernet channels. Both Ethernet
channels are available through standard 8-pin RJ45 connectors. The ENET1
Ethernet connector supports passive power over Ethernet. This enables the
GW2348-4 operating voltage to be provided through the Ethernet connector
rather than the input power connector. The input voltage requirements are given
in Section 3, Specifications.

Pin Signal Standard Wire

Color

1 TX+ WHITE/ORANGE
2 TX- ORANGE
3 RX+ WHITE/GREEN
4 PoE + V BLUE
5 PoE +V WHITE/BLUE
6 RX- GREEN
7 GND WHITE/BROWN
8 GND BROWN

Ethernet Connector J10

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Pin Signal Standard Wire

Color

1 TX+ WHITE/ORANGE
2 TX- ORANGE
3 RX+ WHITE/GREEN
4 No Connect
5 No Connect
6 RX- GREEN
7 No Connect
8 No Connect

Ethernet Connector J11

COM1 Serial Port Connector (J13)

The COM1 serial port connector is an industry standard female 9-pin D-shell
connector with the pin assignment given in the table below. The DCE pin
assignments permit a direct connection to a standard PC DTE port running
terminal emulation software. The mating connector for insulation displacement
ribbon cable is CW Industries CWR-280-09-000, available from Digi-Key as part
number CMM09G-ND.

Pin Number Signal

1 No Connect
2 Transmit Data
3 Receive Data
4 No Connect
5 Ground
6 No Connect
7 Clear To Send
8 Request To Send
9 No Connect

Fan Controller (J14)

The fan is connected to a 2-pin MTA connector. The mating connector is an
AMP/Tyco 770602-02, available from Digi-Key as part number A19490-ND. This
connector requires separate contacts AMP/Tyco 770666-2, available from Digi­Key as part number A23962-ND. Only 5V fans are supported. Suggested fans
are Orion’s OD4010-05x series available from Mouser Electronics
(www.mouser.com).

Pin Number Signal

COM1 Serial Port Connector

1 Fan Power (5V @ .1A)
2 Ground - Speed Control

Fan Speed Control Connector

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Optional Dual USB Host Connector (J18)

The GW2348-4 includes an optional dual Type A connector to support the USB
host configuration.

Pin Signal

1 USB1 Switched 5V
2 USB1 Data­3 USB1 Data+
4 Ground
5 USB2 Switched 5V
6 USB2 Data­7 USB2 Data+
8 Ground

USB Host Connector

2.6. Input Voltage Selection

The GW2348-4 is capable of operating over a wide input voltage range of 9VDC
to 48VDC. The amount of power available for the mini-PCI sockets is limited at
lower input voltages as shown in the table below. For example, operating at an
input voltage of 12V limits the total power available to the Mini-PCI sockets to

9.4W or 2.35W per socket in a four-socket system. Full Mini-PCI socket power of
18W is available at input voltages above 20V.

Input Voltage (V) Mini-PCI Power (W)

9 5.8
10 7.0
11 8.2
12 9.4
13 10.6
14 11.8
15 13.0
16 14.2
17 15.4
18 16.6
19 17.8

20-48 18.0

2.7. JTAG Programming

The GW2348-4 Flash memory is programmed through the JTAG port. Gateworks
offers a low cost GW16012 JTAG programmer that enables the developer to
program or recover the Flash image through a standard PC parallel port.
Gateworks also offers a GW16013 JTAG gang programmer for simultaneously
programming up to 16 GW2348-4 processors in a production environment.

The following are the steps required to use the GW16012 JTAG programmer.

Input Voltage versus Mini-PCI Power

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1. Connect the GW16012 JTAG programmer to a PC parallel port using the
standard DB25 cable included with programmer.

2. Connect the 10-pin IDC female from the GW16012 dongle to the
GW2348-4 JTAG connector.

3. Create a bootable DOS floppy with the FLASH.EXE program and the
binary image. The FLASH.EXE program is a DOS program, which must
be run from a DOS prompt, it cannot be run from a Windows DOS box.
The development kit CDROM contains both the FLASH.EXE program and
the default factory programmed image.

4. Insert the DOS bootable floppy, with the FLASH.EXE program and binary
image into the PC’s floppy drive and boot to DOS.

5. Run the FLASH.EXE program with the following syntax
CC:> flash image.bin {p} {v} where p=program, v=verify and image.bin is
the binary image.

Examples:
C:> flash GW2348-4.bin p
Program the Flash with the GW2348-4.bin image
C:> flash GW2348-4.bin v
Verify that the Flash matches the GW2348-4.bin image
C:> flash GW2348-4.bin pv
Program and verify the Flash with the GW2348-4.bin image

2.8. Getting Started

The GW2348-4 is factory configured with Redboot v2.01 and a uCLinux port
programmed into Flash memory. The software is configured to use either serial
port for a serial console. To get started, connect a serial cable from to another
computer running a terminal software application such as Windows
HyperTerminal. Configure the terminal program for 115,200 baud, 8 data bits, 1
stop bit, no parity and no flow control. Apply power and watch for Redboot and
Linux output on the serial console.

It is also possible to communicate to the GW2348-4 using a telnet session over
Ethernet. First, connect the J10 Ethernet port on the GW2348-4 to the Ethernet
port on a Host Computer using either a standard or a crossover cable. The
default telnet address for the GW2348-4 is 192.168.3.2. Second, configure the
Host Computer IP address to be on the same subnet (i.e. 192.168.3.99). Third,
switch to Host Computer to a command prompt and type C:>telnet 192.168.3.2.
The GW2348-4 console information will now be routed to the Host Computer
display.

2.9. Manufactures Website Links / Support Mailing List

The section provides links to hardware and software related web sites. An email
mailing list is also available for Avila board support issues. To subscribe send an
empty email to: [e-mail] then confirm with a
reply email. You can then post and view messages on the mailing list.

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Hardware

Processor - Intel IXP420 and IXP425

http://developer.intel.com/design/network/products/npfamily/ixp425.htm

Flash - Intel TE28F320J3, TE28F640J3, TE28F640J3

http://developer.intel.com/design/flcomp/prodbref/298044.htm

Ethernet PHY - Intel LXT973

http://developer.intel.com/design/network/products/lan/PHYs/lxt973.htm

Serial EEPROM - Philips Semiconductor PCF8594

http://www.semiconductors.philips.com/

Real Time Clock - Dallas Semiconductor DS1672

http://www.maxim-ic.com/

Temperature and Voltage Monitor - Analog Devices AD7418

http://www.analog.com/

Fan Controller – Microchip TC653BEVUA

http://www.microchip.com/

Software

Linux

http://www.linux.org/

RedBoot

http://sources.redhat.com/redboot/

RedHat - LInux

http://www.redhat.com/

uCLinux

http://www.uclinux.org/

MontaVista - Linux

http://www.mvista.com/pro/downloads/ixp425.html

VxWorks - Windriver

http://www.windriver.com/partnerships/eval-cd/details.html?pgmid=IntelIXDP425t22

Intel IXP4xx Software - VxWorks, Windows CE.NET, Linux

http://developer.intel.com/design/network/products/npfamily/ixp425swr1.htm

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3. SPECIFICATIONS

3.1. Electrical

Operating Voltage

Input Voltage 9VDC 48VDC

Operating Current

Input Current (no Mini-PCI cards) 0.2A @ 24VDC

3.2. Mechanical

Parameter Specification

Dimensions, Length x Width 4.0 x 6.0 in (101.6 x 152.4 mm)
Dimensions, Height 0.9 in (22.9mm)
Weight 5 ounces (142g)

Avila Network Computer Operating Manual

Specification Parameter

Min Max

Specification Parameter

Typ

3.3. Environmental

Parameter Specification

Operating Temperature
Storage Temperature
Non-condensing Relative Humidity

Mechanical Dimensions

Less than 95% at 40 C

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-40 to +85 C

-40 to +85 C

Avila Network Computer Operating Manual

4. CUSTOMER SUPPORT

4.1. Product Revision History

Revision A – Prototype Release (ECO 10000529 dated 12/05)

The GW2348-4 is initially released at revision A and the printed circuit board at
revision 01210048-01.

4.2. Technical Assistance

Gateworks technical support staff is available to assist you with questions that
you may have. Please contact Gateworks using one of the methods shown
below.

Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: http://www.gateworks.com

4.3. Warranty

Standard hardware warranty period is ONE year from date of purchase.
Gateworks will, solely at its option, repair or replace products, which prove to be
defective in materials or workmanship, provided they are returned to a
Gateworks authorized repair center. Shipment to Gateworks is at the customer's
expense. Gateworks pays return shipment by ground.

Products, which in Gateworks opinion, have been subject to misuse, abuse,
neglect or unauthorized alteration or repair are excluded from this warranty.

Products not manufactured by Gateworks are limited to the warranty provided by
the original manufacturer and should be returned to the manufacturer in case of
defect. Software is licensed AS IS. If for any reason, you are dissatisfied with the
software return to Gateworks within 90 days for a full refund.

The liability of Gateworks under this agreement is limited to a refund of the
purchase price of the product. In no event shall Gateworks be liable for loss of
profits or other damage.

4.4. Return for Repair

You must obtain a Returned Material Authorization (RMA) number before
sending any product to Gateworks. Please contact Gateworks using one of the
methods shown below to obtain an RMA number. Please be ready with your
name, telephone number, company name, company address, shipping address,
invoicing address, product number, and a technical description of the problem. A
service charge will be applied to units that are out of warranty. Please pack the
unit being returned in anti-static material and ship in a sturdy cardboard box with

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adequate packing material. Mark the RMA number clearly on the outside of the
box before returning.

Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: http://www.gateworks.com
Address: 3026 South Higuera, San Luis Obispo, CA 93401

4.5. Life Support Policy

Gateworks products are not authorized for use as critical components in life
support devices or systems without the express written approval of the president
of Gateworks Corporation. Refer to the following for definitions of critical
components and life support devices.

1. A critical component is any component of a life support device or system
whose failure to perform can be expected to cause the failure of the life
support device or system, affect its safety, or limit its effectiveness.

2. Life suppor t devices or systems are devices or systems which support or
sustain life, and whose failure to perform, when properly used in accordance
with instructions for use provided in the labeling, can be reasonably expected
to result in a significant injury to the user.

4.6. Trademarks

All brand names or product names mentioned are trademarks or registered
trademarks of their respective owners.

END OF DOCUMENT

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