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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Avila Network Computer Operating Manual
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
-40C to 85C 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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-40C to 85C
Avila Network Computer Operating Manual
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 1C at 25C and 2C over the entire
temperature range of -40C to +125C. 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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