Zilog EZ80L92 - Manual (Page 63)

eZ80L92 Development Kit
User Manual
UM012913-0407 Difference Between EMAC and IP Address
59
On a local area network or other network, the MAC address is a
computer’s unique hardware number. (On an Ethernet LAN, the MAC
address is the same as an Ethernet address.) When connected to the
Internet, a computer (or host as the Internet protocol considers it), a
correspondence table relates the Internet Protocol (IP) address to the
computer's physical (MAC) address on the LAN.
IP Address
An IP address is a 32-bit number that identifies each sender or receiver of
information that is sent in packets across the Internet.
An IP address has two parts: the identifier of a particular network on the
Internet and an identifier of the particular device (which can be a server or
a workstation) within that network. On the Internet itself—that is between
the router that moves packets from one point to another along the route—
only the network part of the address is examined.
Relationship between IP Address and Physical Address
The machine or physical address used within an organization's local area
networks can be different than the Internet IP address. An example is the
48-bit Ethernet address. TCP/IP includes the Address Resolution Protocol
(ARP) that allows the administrator create a table that maps IP addresses
to physical addresses.
The Ethernet MAC address of the ZPAK II
While connecting the ZPAK II serial port to a PC running HyperTerminal,
hold the space bar and reset the ZPAK II.
When HyperTerminal prompts with
eZ80>
enter
e
to display the MAC address.