National Instruments PC-LPM-16/PnP - Manual (Page 73)

 National Instruments Corporation D-1 PC-LPM-16/PnP User Manual
Register-Level
Programming
Appendix
D
This appendix describes in detail information related to register-level
programming the PC-LPM-16/PnP.
Note: If you plan to use a programming software package such as NI-DAQ,
LabVIEW, or LabWindows/CVI with your PC-LPM-16/PnP, you need not
read this appendix.
Base Address
For information on the base address, see Chapter 2, Installation and
Configuration.
Register Map
The register map for the PC-LPM-16/PnP is given in Table D-1. This
table gives the register name, the register address offset from the
board’s base address, the type of the register (read only, write only, or
read and write), and the size of the register in bits.
Table D-1. PC-LPM-16/PnP Register Map
Register Name Offset Address
(Hex)
Type Size
Configuration and Status Register Group
Command Register 1
Command Register 2
Command Register 3
Status Register 1
Status Register 2* 0
7
5
0
1 Write-only
Read-and-write
Write-only
Read-only
Read-only 8-bit
8-bit
8-bit
8-bit
8-bit
Analog Input Register Group
A/D FIFO Low-Byte Register
A/D FIFO High-Byte Register
A/D Clear Register 2
3
1 Read-only
Read-only
Write-only 8-bit
8-bit
8-bit
a.Book : l.Appendix D Page 1 Wednesday, November 20, 1996 6:36 PM