Husky MP2500 Manual page 262

Exit
Description
240
BX=event flags, bits 0..15
CX=event flags, bits 16..31
The events mechanism provides an easy way to detect
important events such as the RTC alarm going off or
special keys being pressed.
Use this function to read the events status. Any
enabled events which have occurred but not yet been
acknowledged (see function 6FH) will be indicated by
setting the appropriate bits in BX and CX (ie event 0 is
bit 0, event 1 is bit 1, etc):
Event Description
P pressed**
0
1 Error on COM1
2 Error on COM2
3 Data received on COM1
4 Data received on COM2
5 RTC alarm
RI received – not supported on MP2500
6
** Or power down is imminent due to an idle timeout or
low power warnings.
(Events are enabled by using function 6EH.)
H MP2500 System Developer's Guide
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