Zilog EZ80L92 - Manual (Page 50)

eZ80L92 Development Kit
User Manual
Operational Description UM012913-0407
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Figure 13 illustrates the bottom layer silkscreen of the eZ80L92 Module.
Operational Description
The purpose of the eZ80L92 Module as a feature of the eZ80L92
Development Kit is to provide the application developer with a plug-in
tool to evaluate the EMAC, memory, IrDA, and other features of the
eZ80L92 device.
Ethernet Media Access Controller
The eZ80L92 Development Kit contains a CS8900A Ethernet Media
Access Controller (EMAC—controls MAC and PHY functions) which is
attached to the data/address bus (A0–A3, D0–D7, RD, and WR) of the
processor. This chip is connected to the processor’s CS3 Chip Select and
to the PD4 pins for interrupt purposes. Connection of pin PD6 and pin
Figure 13. Bottom Layer