GATEWORKS GW2342 Manuale utente

AVILA

NETWORK COMPUTER

Operating Manual

For

GW2342 Network Processor

Document #10000330

Revision 06

1 October 2005

Avila Network Computer Operating Manual

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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

IXP42x Processor Feature Comparison....................................................................................................6

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

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

Compact Flash .............................................................................................................................................6

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

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

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

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

Temperature and Voltage Monitor.............................................................................................................7

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

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

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

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

JTAG Port ....................................................................................................................................................8

Status LED and Push Button Reset ............................................................................................................8

DC/DC Converter........................................................................................................................................8

2. CONFIGURATION AND INSTALLATION.......................................................................................9

2.1. Memory Mapping...............................................................................................................................9

2.2. PCI Device Mapping.......................................................................................................................10

2.3. Interrupt Mapping...........................................................................................................................10

2.4. Digital I/O Mapping........................................................................................................................11

2.5. Interface Connectors.......................................................................................................................12

Mini-PCI Sockets (J1, J2, J3, J4)..............................................................................................................13

Compact Flash Socket (J5)........................................................................................................................15

COM2 Serial Port Header (J6)..................................................................................................................16

JTAG Port Header (J7)..............................................................................................................................16

Digital I/O Header (J8)..............................................................................................................................16

Power Connector (J9)................................................................................................................................17

Ethernet Connectors (J10, J11).................................................................................................................17

USB Device Connector (J12)....................................................................................................................18

COM1 Serial Port Connector (J13)..........................................................................................................18

Fan Controller (J14)...................................................................................................................................18

Auxiliary Power (J17)...............................................................................................................................19

2.6. JTAG Programming........................................................................................................................19

2.7. Getting Started.................................................................................................................................20

2.8. Manufactures Website Links / Support Mailing List.....................................................................20

Hardware ....................................................................................................................................................20

Software......................................................................................................................................................21

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3. SPECIFICATIONS.................................................................................................................................22

3.1. Electrical..........................................................................................................................................22

3.2. Mechanical.......................................................................................................................................22

3.3. Environmental..................................................................................................................................22

4. CUSTOMER SUPPORT........................................................................................................................23

4.1. Product Revision History................................................................................................................23

4.2. Technical Assistance........................................................................................................................24

4.3. Warranty...........................................................................................................................................24

4.4. Return for Repair.............................................................................................................................24

4.5. Life Support Policy..........................................................................................................................25

4.6. Trademarks......................................................................................................................................25

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1.INTRODUCTION

1.1. Product Description

The GW2342 is a member of the Gateworks Avila Network Processor family. The

GW2342 meets the requirements for enterprise and residential network

applications. This single board network processor consists of an IntelIXP series

XScaleCPU operating at speeds up to 533MHz, up to 128Mbytes of SDRAM,

and up to 32Mbytes of Flash. Peripherals include four Type III Mini-PCI slots, two

10/100 Base-TX Ethernet channels, Type B USB device controller, 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,

and a wide range DC/DC power supply. Software support includes Linux and

VxWorksoperating systems.

1.2. Standard Features

♦IntelXScaleIXP42x Processor Operating at Speeds up to 533MHz

♦Up to 128Mbytes SDRAM

♦Up to 32Mbytes Flash

♦Up to four Type III Mini-PCI Slots

♦Two 10/100 Base-TX Ethernet Ports

(Auto MDI/MDIX)

♦Type B USB Device

♦Compact Flash Socket

♦Two RS-232 Serial Ports

♦2Kbyte Serial EEPROM

♦Battery Powered Real

Time Clock

♦Voltage and Temperature Monitor

♦Watchdog Timer

♦General Purpose I/O

♦User LED and Push Button Reset

♦Passive Power Over Ethernet

♦6-28VDC Input Voltage Range

♦Reverse Voltage and Transient Protection

♦14W available for Mini-PCI Sockets

♦3W Typical Operating Power

♦0°C to 70°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

GW2342-C2R2F1E4

IXP425 (533MHz) 64Mbytes 16Mbytes 4

* Contact factory for different configurations of CPU, DRAM, Flash, number of Mini-PCI sockets and

selection of peripherals

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1.4. Functional Blocks

The functional block diagram for the GW2342 network processor is shown below

followed by a detailed description of each major functional block. The network

processor includes several options that are specified at the time of ordering.

Options include the processor type, amount of system memory, amount of Flash

memory, and number of Mini-PCI sockets.

ETHERNET

10/100 PHY

ETHERNET

10/100 PHY

SDRAM

32-128Mbytes

MINI-PCI

SOCKET

MINI-PCI

SOCKET

JTAG

POWER

STATUS LED

XSCALE

PROCESSOR

IXP420@266MHz

IXP425@533MHZ

FLASH

16-32Mbytes

MINI-PCI

SOCKET

MINI-PCI

SOCKET

RS232

DIO

COMPACT

FLASH

SOCKET

RS-232

SERIAL EEPROM

REAL TIME CLOCK

SYSTEM MONITOR

FAN CONTROLLER

DC/DC

CONVERTER

6-28V@18W

GW2342 Functional Block Diagram

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Processor

The GW2342 supports the Intel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.

•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 Gateworks

standard shipping configuration is 64Mbytes.

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 16-bit Flash interface operates at 33MHz. The Gateworks

standard shipping configuration is 16Mbytes.

Compact Flash

The GW2342 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.

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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. There

are up to four Mini-PCI sockets available on the GW2342. There are a wide

variety of Mini-PCI cards available for expanding the networking functionality of

the GW2342. Even though the mini-PCI specification limits the socket operating

power to 2.5W, there is a total of 14W to be distributed as needed.

Ethernet

The GW2342 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 AT24C16AN is an Electrically Erasable Programmable Read Only

Memory (EEPROM) with 16Kbits of storage. The 16kbits of storage is organized

in a 2048 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.

Temperature and Voltage Monitor

The Analog Devices AD7418 provides temperature and voltage monitoring

capability. The GW2342 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 GW2342 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

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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 GW2342 includes a Microchip TC653BE that controls the

speed of a fan based on temperature. This device keeps the fan off until the

GW2342 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 GW2342 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 GW2342

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, Digital I/O Mapping.

USB

The GW2342 includes a version 1.1 Device Controller interface. The interface

operates as a half-duplex, slave-only device at a baud rate of 12Mbps. The

interface does not operate as a USB host. A standard USB Type B connector is

provided on the board.

JTAG Port

A JTAG debug port is available to facilitate program download directly into Flash

memory. See Section 2, JTAG Programming, for more information.

Status LED and Push Button Reset

The GW2342 includes a status LED and a push button reset. The LED is

connected to the digital I/O and can be controlled by software. See Section 2

Configuration and Installation for the mapping of the LED.

DC/DC Converter

A switching DC/DC converter supplies power to the GW2342. This allows the

board to support a wide input voltage range and low power operation. The

DC/DC has a minimum input voltage of 6VDC and a maximum of 28VDC. DO

NOT EXCEED THE 28VDC INPUT MAXIMUM OR DAMAGE MAY OCCUR TO

THE BOARD. Also note that if a power over Ethernet injector is used to power

the board, there will be voltage loss due to the resistance of the Ethernet cable.

This should be taken into account when sizing the voltage supply.

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2.CONFIGURATION AND INSTALLATION

The following section gives memory, interrupt, I2C and digital I/O mappings

specific to the GW2342. 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 GW2342 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_FFFFReserved

C000_0000 –C3FF_FFFF 64Mbyte PCI Controller Configuration and Status

C400_0000 –C7FF_FFFF 64Mbyte Expansion Bus Configuration

C800_0000 –C800_0FFF 1Kbyte COM1 Serial Port

C800_1000 –C800_1FFF 1Kbyte COM2 Serial Port

C800_2000 –C8FF_2FFF 1Kbyte Performance Monitor

C800_3000 –C8FF_3FFF 1Kbyte Interrupt Controller

C800_4000 –C8FF_4FFF 1Kbyte GPIO Controller

C800_5000 –C8FF_5FFF 1Kbyte Timers

C800_6000 –C8FF_6FFF 1Kbyte Reserved

C800_7000 –C8FF_7FFF 1Kbyte Reserved

C800_8000 –C8FF_8FFF 1Kbyte Reserved

C800_9000 –C8FF_9FFF 1Kbyte Ethernet MAC A

C800_A000 –C8FF_AFFF 1Kbyte Ethernet MAC B

C800_B000 –C8FF_BFFF 1Kbyte USB Controller

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

Chip

Select Description

CS0 Flash Memory (U3)

CS1 Compact Flash Socket #CS0 (J5)

CS2 Compact Flash Socket #CS1 (J5)

CS3 Flash Memory (U4)

CS4-CS7 Not Used

Expansion Bus Chip Selects

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2.2. PCI Device Mapping

The GW2342 PCI device mapping is listed below.

Bus

Number

Device

Number

Fcn

Number

IRQ

Number

Description

00 01 028 Mini-PCI Slot (J3)

00 02 027 Mini-PCI Slot (J1)

00 03 026 Mini-PCI Slot (J4)

00 04 025 Mini-PCI Slot (J2)

PCI Device Map

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

0WAN/HSS NPE –Not Used

1Ethernet NPE A

2Ethernet NPE B

3Queue Manager (1-32)

4Queue Manager (33-64)

5General Purpose Timer 0

6GPIO(0)

7GPIO(1)

8PCI Interrupt -Not Used

9PCI DMA Channel 1

10 PCI DMA Channel 2

11 General Purpose Timer 1

12 USB

13 Console UART

14 Timestamp Timer

15 High-Speed UART –Not Used

16 Watchdog Timer

17 Performance Monitoring Unit

18 XScale PMU

19 GPIO(2)

20 GPIO(3)

21 GPIO(4)

22 GPIO(5) -Not Used (Serial Enable)

23 GPIO(6) -Not Used (I2C Bus SCL)

24 GPIO(7) -Not Used (I2C Bus SDA)

25 GPIO(8) -Mini-PCI Slot

J2 -INTA

J4 –INTB

26 GPIO(9) -Mini-PCI Slot

J4 -INTA

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