• 32-bit high performance
ARM7TDMI RISC processor
• Integral 10/100BaseT
Ethernet MAC
• 4KB unified instruction/data
cache
• Large 2KB Rx buffer for
reliable network performance
• Patented 10-channel DMA
controller
• Includes complete, production-
ready NET+Works networking
software and comprehensive
development support
• Complete scalability through-
out the product line with pin
and software compatibility
• Run-time binary license for
NetSilicon’s NET+OS™or
Wind River’s pSOS+™RTOS
included at no additional cost
• Complete software and
hardware for networking
electronic devices
• Dramatic time to market
reductions
• Reduce your product unit costs
• Save your engineering
resources
– No networking development
– No long-term support
needed
• Performance tuned
• Fully integrated solution
• Production ready now
MII
Interface
• 8 Internal
• 2 External
Asynchronous
and
Synchronous
Serial Data
and Control
1284
Interface
Crystal
General Purpose
TTL Input/Output
• 28-Bit Address
• 32-Bit Data
• 8, 16 and 32-Bit Support
NET+40 Processor Block Diagram
Shared 64K RAM Interface for Use
in Dual Processor Applications
Supports:
• ROM
• Flash
• EEPROM
• SRAM
• SDRAM
• FP/EDO DRAM
• 256MByte Address Space
32-Bit
ARM7TDMI
RISC
Processor
with
4KB Cache
NetSilicon, Inc. • 411 Waverley Oaks Road #227 • Waltham, MA 02452 • (800) 243-2333 • Tel: (781) 647-1234 • Fax: (781) 893-1338 • info@netsilicon.com • www.netsilicon.com
24 General
Purpose
I/O Pins
External
Bus
Interface
10 Channel
DMA
Controller
2 Serial
Ports
1284
Ports
Timers/
Counters
Programmable
Memory
Controller
Interrupt
Controller
Clock
Generator
Integral
10/100
Ethernet MAC
Features
Benefits
ENI
Co-Processor
Interface
!
Embedded Ethernet/Internet-Ready Processor
NET+40 !
The NetSilicon NET+40™is a high-performance,
highly integrated 32-bit microprocessor designed for use
in intelligent networked devices and Internet appliances.
It includes an ARM7TDMI core, integral 10/100BaseT
Ethernet MAC with an MII interface, patented
10-channel DMA controller and a sophisticated
memory controller supporting all of the popular
memory devices in use today.
The NET+40 is part of the award-winning NET+ARM™
family of networked microprocessors. This family
provides scalability and pin-for-pin compatibility over
a broad performance range. NET+ARM microprocessors
are the hardware core of the NET+Works™platform
of highly integrated and tested solutions for adding
intelligence and connectivity to electronic devices.
NetSilicon has made every effort to ensure that the information contained herein is accurate, and is not responsible for inadvertent
errors. Specifications are subject to change without notice. The NetSilicon logo, NET+40, NET+Works and NET+OS are trademarks
of NetSilicon, Inc. NET+ARM is a trademark of ARM Limited and is exclusively sublicensed to NetSilicon, Inc. pSOS+ and pRISM+
are trademarks and VxWorks is a registered trademark of Wind River Systems, Inc. All other trademarks are the property of their
respective owners. © 2000 NetSilicon, Inc. 1000/M224
www.netsilicon.com
32-Bit ARM7TDMI RISC Processor
• Full 32-bit ARM mode
• 15 general-purpose 32-bit registers
• 32-bit program counter and status
register
• 5 supervisor modes, 1 user mode
One-Chip Cache
• 4K unified instruction/data cache
• 4-way set associative
• Lockable entries
• Write through/copy back
Integral 10/100 Ethernet MAC
• 10/100Mbit MII based PHY interface
• 10Mbit ENDEC interface
• Supports TP-PMD and fiber-PMD
devices
• Full duplex
• Optional 4B/5B scrambling
• Full statistics gathering (SNMP and
RMON)
• Station, broadcast, multicast address
detection and filtering
• 128 byte transmit FIFO
• 2K byte receive FIFO
• Intelligent receive side buffer selection
• External CAM filtering
10-Channel DMA Controller
• 2 dedicated to Ethernet
transmit/receive
• 4 dedicated to serial transmit/receive
• 2 dedicated to P1284 interface
• Flexible buffer management
• 2 channels configurable for external
peripherals
Serial Ports
• 2 fully independent HDLC/UART/SPI
serial ports
• 32 byte transmit/receive FIFOs
• Internal programmable bit-rate
generators
• Bit rates from 75 – 230400: 16X mode
• Bit rates from 1200 – 4Mbps: 1X mode
• Odd, even, or no parity
• 5,6,7 or 8 bits
• 1 or 2 stop bits
• Both internal & external clock support
• Receive side character and buffer gap
timers
• 4 receive side data match detectors
Bus Interface
• 5 independent programmable chip
selects
• Supports 8-, 16-, 32-bit peripherals
• Supports external address decoding
and cycle termination
• Supports dynamic bus sizing
• Supports ASYNC and SYNC
peripheral timing
• All chip selects support SRAM,
FP/EDO DRAM, SDRAM, Flash,
EEPROM without external glue logic
• Internal DRAM address multiplexing
• Internal refresh controller (CAS before
RAS)
• 256Mbyte addressing per chip select
• Burst-mode support
• 0-15 wait states per chip select
• Bootstrap support
• External bus master support
• Internal or external bus arbiters
P1284/ENI Interface
• 4 IEEE 1284 parallel ports
• 64K shared RAM ENI interface
(8 or 16-bit)
• Full duplex FIFO mode interface
(8 or 16-bit)
• 32 byte transmit/receive FIFOs
Timers
• Two independent 26-bit
programmable timers
• Programmable watch-dog timer
(interrupt or reset on expiration)
• Programmable bus timer
General Purpose I/O
• Up to 24 programmable I/O pins
• 4 pins with programmable interrupt
Clock Generator
• Simple external crystal
• On-board programmable phase lock
loop
• Supports direct external clock input
Package
• 208-pin PQFP, 0.020 inch (0.5 mm)
pitch
Other
• Operating voltage:
– 3.0 – 3.6V
• Industrial temperature range
(-40ºC – 85ºC)
Development Support
Hardware Specifications
NET+Works Development Systems
NET+ARM microprocessors are the
hardware core of the NET+Works
platform of highly integrated and tested
solutions for adding intelligence and
connectivity to electronic devices.
NetSilicon offers a variety of options
to support different application
environments.
NET+OS Complete Development
System
For deeply embedded applications
requiring real-time performance
and small code footprints. Includes:
• Thread-X RTOS
• Green Hills™MULTI 2000 IDE
• NET+Works suite of drivers, protocols
and services
– NET+ARM Drivers (10/100 BaseT
Ethernet MAC, Serial – UART,
HDLC, DMA, Interrupt Controller,
FLASH memory)
– Networking Protocols (TCP/IP,
UDP, PING, RARP, PPP, IGMP,
Telnet)
– Networking Services, with APIs
(HTTP v1.1 Client and Server,
POP3 and SMTP Email, FTP
Client and Server, SNMP MIBII
and proxy agent, BOOTP, DHCP
& DNS)
• NET+ARM-based software
development board
• NetSilicon-supplied utilities
– Compile and load HTML into C
and firmware
– Network downloading of on-board
FLASH memory
– Automated build environment
– NVRAM device manager
• Raven hardware debugger
• 1 year software maintenance and
technical support
• Hardware design review
• Development System training at
NetSilicon
NET+Lx Embedded Linux Development
System
A complete embedded Linux platform for
Internet Appliances. The system includes:
• uClinux kernel
• Networking protocols (IP, UDP, TCP)
• Certified networking applications
(HTTPD Web Server, Pump DHCP
Client, SMTP Client, Telnet Server,
Anonymous FTP Server, FTP Client)
• NET+ARM-based software
development board
• GNU Compiler Collection (GCC)
toolset, including:
– gcc GNU Compiler Collection
– gdb – GNU Debugger
– ddd – Data Display Debugger
– binutils – Binary Utilities
NET+Works Standard Development
System
Offers BSP-level support for Wind River’s
pSOS+™and VxWorks®real-time RTOSs.
The system includes:
• NET+Works networking software suite
• NET+ARM-based software
development board
• 1 year software maintenance and
technical support
• Hardware design review
• Development System training at
NetSilicon
Third Party Tools
• Wind River’s pRISM+™ graphical
development environment for pSOS+
• Wind River’s Tornado development
environment for VxWorks
• JTAG port In Circuit Emulation (ICE)
