3.6.2 Using Direct I/O

24

Figure 3.5:Frequency Measurement

24

Appendix

A

Specifications

26

 

A.1

Programmable Counter

26

 

A.2

Digital Input/Output

26

 

A.3

General

27

Appendix

B

Block Diagram

30

Appendix C

Register Structure & Format

32

 

C.1

Overview

32

 

C.2

I/O Port Address Map

32

 

 

C.2.1 Register Format

33

 

C.3

Table C.1:Register Offset Address Table

33

 

Counter 0/1 Mode Register

35

 

C.4

Counter 0/1 Load Register:

37

 

C.5

Counter 0/1 Hold Register

37

 

C.6

Counter 0/1 Command Register

38

 

C.7

Counter Command Enable Register

38

 

C.8

Interrupt Control Register

39

 

C.9

Interrupt Status Register

39

C.10

Interrupt Clear Register

40

C.11

I/O Direction Control Register

40

C.12

Port A/B/C Interrupt Status Register

40

C.13

FOUT Register

41

Appendix D

Waveform of Each Mode

44

 

D.1

Counter Mode Descriptions

44

 

 

Table D.1:PCM-3780 Counter Mode

45

 

D.2

Table D.2:PCM-3780 Counter Mode

46

 

Mode A Waveforms

47

 

D.3

Mode B Waveforms

48

 

D.4

Mode C Waveforms

49

 

D.5

Mode D Waveforms

50

 

D.6

Mode E Waveforms

51

 

D.7

Mode F Waveforms

52

 

D.8

Mode G Waveforms

53

 

D.9

Mode H Waveforms

54

D.10

Mode I Waveforms

55

D.11

Mode J Waveforms

56

D.12

Mode K Waveforms

57

D.13

Mode L Waveforms

58

D.14

Mode O Waveforms

59

D.15

Mode R Waveforms

60

D.16

Mode U Waveforms

61

D.17

Mode X Waveforms

62

PCM-3780 User Manual

viii

Page 8
Image 8
Advantech PCM-3780 manual Appendix Specifications