Kontron CP384 - Manual (Page 5)

CP384 Preface
ID 31440, Rev. 01 Kontron Modular Computers GmbH
P R E L I M I N A R Y
Page v
Rev
N
r. = CP384 -
31440_
01 - 060
503/
144
225
4.2.2 Signal Characteristics ..................................................................... 4 - 3
4.2.3 Channel Configuration .................................................................... 4 - 4
4.3 Digital Output Signal Properties .............................................................. 4 - 5
4.3.1 Channels ......................................................................................... 4 - 5
4.3.2 Connection of External Supply ....................................................... 4 - 5
4.3.3 Channel Connection ....................................................................... 4 - 6
4.4 Programming Interface ............................................................................ 4 - 8
4.4.1 Access Control Logic (Address Decoder) ....................................... 4 - 8
4.4.2 Reading Input Data ......................................................................... 4 - 9
4.4.3 Debouncing Inputs .......................................................................... 4 - 9
4.4.4 Detecting Input Events .................................................................. 4 - 10
4.4.5 Latching on Input Events .............................................................. 4 - 11
4.4.6 Comparing Input Patterns ............................................................. 4 - 12
4.4.7 Writing Output Data ...................................................................... 4 - 12
4.4.8 Hardware Debug/Test Registers ................................................... 4 - 13
4.4.9 Generating Interrupts .................................................................... 4 - 14
4.4.10 Programming the Board Capability ROM ..................................... 4 - 15
Chapter
5
5. System Considerations ................................................................................ 5 - 3
5.1 Introduction ............................................................................................. 5 - 3
5.2 General ................................................................................................... 5 - 3
5.3 Shielding ................................................................................................. 5 - 3
5.4 Debouncing for Digital Inputs .................................................................. 5 - 3
5.5 Process-Side Signal Conditioning for Digital Inputs ................................ 5 - 4
5.6 External Power Supply for Digital Outputs .............................................. 5 - 4
5.7 Cable Interfacing ..................................................................................... 5 - 4