System information

Table of Contents
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Analog Input ..................................................................................................................... 40
Hardware Configuration ...................................................................................... 40
External Connections........................................................................................... 40
Calibration ........................................................................................................... 40
Analog Control Register...................................................................................... 41
Digital Control / Analog Status Register............................................................. 42
ADC Data High Register ..................................................................................... 43
ADC Data Low Register...................................................................................... 44
Two's Complement Data Format (±5V and ±10V Only) .................................... 45
Binary Format (0 to +5V and 0 to +10V Only)................................................... 46
Analog Input Code Example ............................................................................... 46
USB 1.0 Interface ............................................................................................................. 47
Opto 22 (Digital I/O) Interface......................................................................................... 48
External Connections........................................................................................... 48
Rack Power.......................................................................................................... 49
Signal Direction................................................................................................... 49
Digital I/O Data Ports.......................................................................................... 49
Auxiliary Timer/Counter Channels .................................................................................. 50
Jumper Configuration.......................................................................................... 50
External Connections........................................................................................... 50
Counter / Timer Registers ................................................................................... 50
Operation ............................................................................................................. 50
PC/104 Expansion Bus ..................................................................................................... 51
Arranging the Stack ............................................................................................. 51
I/O Configuration ................................................................................................ 51
Memory and I/O Map ....................................................................................................... 52
Memory Map ....................................................................................................... 52
I/O Map................................................................................................................ 53
Interrupt Configuration..................................................................................................... 54
Special Control Register................................................................................................... 55
Revision Indicator Register .............................................................................................. 56
Watchdog Timer Hold-Off Register................................................................................. 56
Map and Paging Control Register .................................................................................... 57
Appendix A — Other References ...............................................................................59