Cp383 configuration – Kontron CP383 User Manual
Page 57
CP383
Configuration
ID 27784, Rev. 01
© 2004 Kontron Modular Computers GmbH
Page 4 - 11
27784
.01.VC.040308/162544
P R E L I M I N A R Y
31-16
r/w
0
Not used
15 - 0
r/w
1
Input event mask bits
Note ...
A set bit means that event detection is disabled for the corresponding input port.
Table 4-7: Input Event Polarity Register
BITS
TYPE
DEFAULT
FUNCTION
31-16
r/w
0
Not used
15 - 0
r/w
0
Input event polarity bits
Note ...
A bit setting of 0 bit means that an event is detected when the input port
changes from 0 to 1 whereas a setting of 1 means that an event is detected
when the input changes from 1 to 0.
Table 4-8: Input Status Register
BITS
TYPE
DEFAULT
FUNCTION
31
r/w
0
Input latch-on-event status flag
30
r/w
0
Input compare status flag
15 - 0
r/w
0
Input event status flags
Note ...
A set bit means that an event was detected on the corresponding input port.
Events must be cleared by writing a "1" to the corresponding input event flag.
Otherwise, consecutive events on the same input would no longer be detected.
Table 4-6: Input Event Mask Register