EMBEDDED FIREWALL SOLUTIONS
Zilog’s ZGATE™ Embedded Security
1
ZGATE™ ADVANTAGES
Easily add secure Ethernet capability to
your products
Easy implementation for complicated
network stacks
Zilog full-featured TCP/IP Software
Suite
Embedded firewall with easily
configured filtering rules
Zilog’s continuing commitment to
supporting our customers
KEY FEATURES
50 MHz high-performance eZ80® CPU
with Ethernet Media Access Control
(EMAC)
256KB Flash Program Memory with
16KB high-speed SRAM (including 8K
for EMAC)
32 GPIO ports
External memory interface
Supports multiple network protocols
Includes multiple servers/clients
Real-Time Operating System (RTOS)
Easily configured filtering rules
Extremely low firewall latency
Lockdown mode
API for event logging
Zilog’s ZGATE™ Embedded Security
Ethernet, IP/UDP/TCP/ICMP filterin
g
Extremely low latency; tests show improved network throughput under load by blocking packets earlier
API for event logging
Easily-configurable filtering rules:
o Static/rules-based filtering blocks packets based on configurable rules
o Dynamic filtering/stateful packet inspection (SPI) blocks packets based on connection state
o Choose your firewall package based on application requirements – see table below
Firewall Features
Firewall Package
Standard Extended Premium*
Static filtering Yes Yes Yes
Stateful packet inspection Yes Yes Yes
Port, protocol and address limits
15 ports, 10
protocols, 10 IP
addresses & 10
MAC addresses
100 ports, 100
protocols, 100 IP
addresses & 100
MAC addresses
100 ports, 100
protocols, 100 IP
addresses & 100
MAC addresses
Threshold-based filtering No No Yes
*The ZGATE Embedded Security Development Kit (ZGATE000100ZCOG) ships with the Premium firewall package.
Overview
Zilog introduces ZGATE™ Embedded Security, which combines multiple world-class technologies for safer, faster
and better deployment of your embedded communication applications. Incorporating the eZ80F91 MCU and
Zilog’s full-featured TCP/IP stack with a world-class embedded firewall produces technology that provides the
tools to design, build and bring your communication product to market.
The eZ80F91 MCU is the industry’s first MCU featuring a high-performance 8-bit microcontroller with an
integrated 10/100 BaseT EMAC. It is a power-efficient, optimized pipeline architecture microcontroller with a
maximum operating speed of 50 MHz. Offering on-chip Flash Memory, SRAM, Ethernet MAC, and rich
peripherals, the eZ80F91 is well-suited for industrial, communication, automation, security, and embedded
Internet applications.
ZGATE™ Firewall Features
ZGATE™
Embedded Securit
y
Produc
t
Brief
PB024304-1112
EMBEDDED FIREWALL SOLUTIONS
Zilog’s ZGATE™ Embedded Security
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APPLICATIONS
Embedded webservers
Wireless solar power monitoring
Smart meters
Home automation
Zilog Full-Featured TCP/IP Software Suite Features
eZ80F91 MCU Features
Provides
a critical layer o
f
security for networked devices
Supports the following TCP/IP protocols:
o IPv4, TCP, UDP, ARP and RARP
o ICMP, IGMP and DHCP/BOOTP
HTTP/HTTPS server, TFTP client, SNMP agent, TELNET server and client, SMTP client, DNS client, TimeP client and
SNTP client
FTP server and client, plus an embedded Flash file system that works within the Flash and static RAM memories
Local or remote run-time debugging operating system command shell
RTOS (RZK)
50 MHz high-performance eZ80®
CPU
256 KB Flash Program Memory and extra
512 B device configuration Flash Memory
32 General-Purpose Input/Output (GPIO)
16 KB total on-chip high-speed SRAM:
o 8 KB for general-purpose use
o 8 KB for 10/100 BaseT Ethernet Media Access Controller (EMAC) high-speed frame buffer
IrDA-compatible infrared encoder/decoder
Two universal asynchronous receiver/transmitter (UARTs) with independent baud rate generators
Inter-integrated circuit (I2C) and serial peripheral interface (SPI) with independent clock rate generator
Four counter/timers with prescalers supporting event counting, input capture, output compare and Pulse
Width Modulator (PWM) modes
Watchdog Timer (WDT) with internal RC clocking option
Real time clock (RTC) with on-chip 32 KHz oscillator, selectable 50/60 Hz input, and separate RTC_VDD pin
for battery backup
Glueless external memory interface with 4 Chip-Selects/Wait-State Generators and external WAIT input pin. It
also supports Intel® and Motorola® buses
JTAG and Zilog Debug Interface (ZDI) supporting emulation features
Low-power PLL and on-chip oscillator
Programmable-priority vectored interrupts, nonmaskable interrupts, and interrupt controller
New DMA-like eZ80® CPU instructions
Power management features supporting HALT/SLEEP modes and selective peripheral power-down controls
144-pin LQFP package
3.0 V to 3.6 V supply voltage with 5V-tolerant inputs
EMBEDDED FIREWALL SOLUTIONS
Zilog’s ZGATE™ Embedded Security
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Ordering Information
Order ZGATE™ parts separately using part numbers from the above table.
For more information about Zilog’s ZGATE™ embedded firewall technology, ordering or product collateral, please
consult your local Zilog distributor or representative. You can find sales office locations and the most current
product information on our website; please visit us at www.zilog.com.
Warning: DO NOT USE THIS PRODUCT IN LIFE SUPPORT SYSTEMS.
LIFE SUPPORT POLICY
ZILOG'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE
EXPRESS PRIOR WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF ZILOG CORPORATION.
As used herein
Life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) 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. A critical component is any component in a life support device or system whose failure to
perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness.
Document Disclaimer
©2012 Zilog, Inc. All rights reserved. Information in this publication concerning the devices, applications, or technology described is
intended to suggest possible uses and may be superseded. ZILOG, INC. DOES NOT ASSUME LIABILITY FOR OR PROVIDE A
REPRESENTATION OF ACCURACY OF THE INFORMATION, DEVICES, OR TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZILOG ALSO DOES
NOT ASSUME LIABILITY FOR INTELLECTUAL PROPERTY INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR
TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. The information contained within this document has been verified according to the
general principles of electrical and mechanical engineering.
Z8051 is a trademark or registered trademark of Zilog, Inc. All other product or service names are the property of their respective owners.
WWW.ZILOG.COM | 408-457-9000
Zilog and the Zilog logo are registered trademarks of
Zilog, Inc. in the United States and in other countries.
ZGATE™ parts are offered in the following packages. Construct your part number based on the specific package
you wish to order.
Part Number Firewall
Package Flash SRAM Temperature Package
EZ80F91GAZ0AEG Premium 256 KB 16 KB –40°C to 105°C 144-pin LQFP
EZ80F91GAZ0BEG Deluxe 256 KB 16 KB –40°C to 105°C 144-pin LQFP
EZ80F91GAZ0CEG Standard 256 KB 16 KB –40°C to 105°C 144-pin LQFP
ZGATE000100ZCOG ZGATE Embedded Security Development Kit
EMBEDDED FIREWALL SOLUTIONS
Zilog’s ZGATE™ Embedded Security
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Engineering Notes
