The ZGATE™ Embedded Security Firewall combines the eZ80F91 MCU and Zilog’s full-featured
ZTP Embedded Internet Software Suite and TCP/IP Stack with a world-class embedded firewall. This
highly-configurable firewall protects the ZTP networking layers from attack by discarding
suspicious packets before they reach ZTP and your embedded application.
The ZGATE™ Firewall includes a static packet filtering engine that filters packets according to
user-defined configuration rules and a stateful packet inspection engine that can automatically
filter suspicious packets based on unusual activity. Additionally, select ZGATE™ products include
threshold-filtering mechanisms that can minimize the affect of packet floods.
The eZ80F91 MCU is 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.
The ZGATE™ Firewall is offered in three packages to accommodate your development requirements,
as indicated in the following table:
Firewall Features
Standard Package
Extended Package
Premium Package*
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
