PCL-818 Series User Manual
52
C.7 MUX Scan Channel Status — BASE+02H
Read register BASE+02H to get the current multiplexer (MUX) channel.
Table C-6 Register for MUX Scan Channel Status
CC3 ~ CC0 Current channel number
CC0
the least significant bit (LSB) of the stop channel
CC3
the most significant bit (MSB)
C.8 Digital I/O Registers - BASE + 03/0BH
The PCL-818HD/HG/L provides 16 digital input channels and 16 digital
output channels. You read digital input data from registers BASE+03H
and BASE+0BH. After the read operation the input lines go to three-state
(data is not latched).
You write digital output data to registers BASE+03H and BASE+0BH.
The registers latch the output value (you cannot read it back).
Using the PCL-818HD/HD/L's input and output functions is fairly
straightforward. Chapter 3 gives some ideas for digital signal connec-
tions.
Table C-7 Register for Digital Output
DO15 ~ DO0 Digital output data
DO0
the least significant bit (LSB) of the DO data
DO15
the most significant bit (MSB)
Read
MUX scan channel status
Bit #
7
6
5
4
3
2
1
0
BASE + 02H
CC3
CC2
CC1
CC0
Write
Digital Output
Bit #
7
6
5
4
3
2
1
0
BASE + 03H DO7
DO6
DO5
DO4
DO3
DO2
DO1 DO0
BASE + 0BH DO15 DO14
DO13 DO12
DO11
DO10 DO9 DO8
Summary of Contents for PCL-818 Series
Page 1: ...PCL 818 Series 12 bit ISA Multifunction Card User Manual ...
Page 14: ...PCL 818 Series User Manual 6 Figure 1 1 Installation Flow Chart ...
Page 28: ...PCL 818 Series User Manual 20 ...
Page 45: ...2 APPENDIX A Specifications ...
Page 49: ...2 APPENDIX B Block Diagram ...
Page 51: ...2 APPENDIX C Register Structure Format ...
Page 71: ...2 APPENDIX D Calibration ...