Omega 1002 manual General Control Register, Interrupt Source Selection

For OME-PCI-1002H:

[Bit1,Bit0]	[0 0]	[0 1]	[1 0]	[1 1]
Gain	1	10	100	1000

3.These registers are set to 0 after power-on or a hardware reset signal.

3.2.2.8 The General Control Register

The general control register (18h) is used to control the add-on interrupt source and the A/D trigger method. The format of this register is:

Bit4-2	Bit 1-0
Interrupt source	A/D trigger method
selection register	selection register

3.2.2.8.1 Interrupt Source Selection

There are four interrupt sources selectable for the OME-PCI-1002 (see section 1.4.4).

[Bit4,Bit3,Bit2]	Description
[ 0, 0, 0 ]	No interrupt source, disable all interrupts.
[ 0, 0, 1 ]	Interrupt after A/D conversion completes.
[ 0, 1, 0 ]	Interrupt after 8254 timer 0 falling.
[ 0, 1, 1 ]	Interrupt after external trigger falling.
[ 1, 0, 0 ]	Interrupt after 8254 timer 1 falling.
Others	No interrupt source, disable all interrupts.

Note: Bit 3-3 of general control register is set to 0 after a hardware reset.

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