Zilog EZ80F91 - Manual (Page 15)

eZ80F91 Development Kit
User Manual
UM014220-0508 eZ80 Development Kit
10
Operational Description
The eZ80Acclaim!
®
Development Kit can accept any eZ80
®
-core-based
modules, provided that the module interfaces correctly to the
eZ80Acclaim! Development Kit. The purpose of the eZ80Acclaim!
Development Kit is to provide you a tool to evaluate the features of the
eZ80F91 device, and to develop an application without building addi-
tional hardware.
eZ80F91 Module Interface
The eZ80Acclaim! Development Kit provides an easy interface for con-
necting each of the development modules in the eZ80Acclaim! family,
including the eZ80F91 Module. The eZ80F91 Module interface consists
of two 50-pin receptacles, JP1 and JP2; a third receptacle, JP3, enables
the programming of internal on-chip Flash memory.
Almost all these receptacles’ signals are connected directly to the CPU.
Five input signals, in particular, offer you options by disabling certain
functions of the eZ80F91 Module.
These five input signals
1
are:
•
Enable Flash (EN_Flash)
•
Flash Write Enable (FlashWE)
•
Disable IrDA (DIS_IrDA)
•
F91_WE
•
RTC_V
DD
1. These input signals are only used if external Flash memory is present on the eZ80F91 Module. As shipped
from the factory, external Flash is not installed.