Omega 1002 manual Clear Interrupt

3.2.2.6 Clear Interrupt

Reading from 1Ch will clear the add-on interrupt.

3.2.2.7 The Analog Input Selection Register

The analog input channel selection register uses address 10h and address 14h is used by the analog gain control selection register. Write 0-31 to port 10h to select the channel number (for differential input, write 0-15). Write 0-3 to port 14h to select the gain control.

inputsAnalog	…		Analog
			Mux.
			Select
			…
		Channel select

Figure 3-2. Analog input control.

AMP

Gain control

ADC

Note:

1.For single ended inputs, channels 0-31 are available. For differential inputs, channels 0-15 are available. If you enter a channel number greater than the number available, those channels will be ignored. Thus, for single-ended inputs, only the last 5 bits are taken as the channel number. And for differential inputs, only the last 4 bits are taken as the channel number.

2.Only the last two digits are used as the gain control code. The gain control codes and corresponding gains are shown below :

For OME-PCI-1002L:

Gain code	[0 0]	[0 1]	[1 0]	[1 1]
Gain	1	2	4	8
		32