Zilog EZ80L92 - Manual (Page 38)

eZ80L92 Development Kit
User Manual
Operational Description UM012913-0407
34
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.
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 provide protection from inadvertent use.
Jumper J2
The J2 jumper connection enables/disables IrDA transceiver functional-
ity. When the shunt is placed, IrDA communication is disabled. See
Table 13 .
Table 13. J2—DIS_IrDA
Shunt
Status
Function Affected Device
IN IrDA interface disabled UART0 is configured to work with the RS232 or the
RS485 interfaces.
OUT IrDA interface enabled The IrDA and UART0 interfaces on the eZ80L92
Module perform their functions.