Zilog EZ80190 - Manual (Page 39)

eZ80190 Development Kit
User Manual
UM014108-0810 Operational Description
35
PB1
The PB1 push button switch, SW2, is connected to bit 1 of the general-
purpose port. This switch can be used as the port input if required by the
user.
PB2
The PB2 push button switch, SW3, is connected to bit 2 of the general-
purpose port. This switch can be used as the port input if required by the
user.
RESET
The Reset push button switch, SW4, resets the eZ80 ® CPU and the
eZ80Acclaim! ® Development Platform.
Jumpers
The eZ80Acclaim! ® Development Platform provides a number of jump-
ers that are used to enable or disable functionality on the platform, enable
or disable optional features, or to provide protection from inadvertent use.
Jumper J2
The J2 jumper enables/disables IrDA transceiver functionality. When the
shunt is placed, IrDA communication is disabled. This jumper does not
perform any functions when the eZ80190 Module is installed.