Zilog eZ80F92 - Manual (Page 25)

eZ80F92 Development Kit
User Manual
UM013911-0607 Operational Description
21
These three inputs are:
• Enable Flash (EN_FLASH)*
• Flash Write Enable (FlashWE)*
• Disable IrDA (DIS_IrDA)
These three signals are described below.
Enable Flash*
When active Low, the EN_FLASH input signal enables the Flash chip on
the eZ80F92 Flash Module.
Flash Write Enable*
When active Low, the FlashWE input signal enables Write operations on
the Flash boot block of the eZ80F92 Flash Module.
Disable IrDA
When the DIS_IrDA input signal is pulled Low, the IrDA transceiver,
located on the eZ80F92 Flash Module, is disabled. As a result, UART0
can be used with the RS232 or the RS485 interfaces on the
eZ80Acclaim!
® Development Platform.
*These inputs are only used if external Flash is present on the eZ80F92
Flash Module (as shipped from the factory, external Flash is not
installed).
Application Module Interface
An Application Module Interface is provided to allow the user to add an
application-specific module to the eZ80Acclaim!
® Development Plat-
form. ZiLOG’s Thermostat Application Module (not provided in the kit)
is an example application-specific module that demonstrates an HVAC
control system. Implementing an application module with the Application
Module Interface requires that the eZ80F92 Flash Module also be
Note: