Advantech 3718HG, User Manual, Page: 35 / 68

Chapter 4 Register Structure and Format 31
4.7 Control Register - BASE+9
Read/write register BASE+9 provides information on the PCM-3718’s
operating modes.
BASE+9 - Control
Bit D7 D6 D5 D4 D3 D2 D1 D0
Value INTE I2 I1 I0 X DMAE ST1 ST0
INTE Disable/enable PCM-3718H/3718HG interrupt generation
0 Disables the generation of interrupts. No interrupt
signal will be sent to the PC bus.
1 Enables the generation of interrupts.
If DMAE = 0, the PCM-3718H/3718HG will generate
an interrupt when it completes an A/D conversion.
Use this setting for interrupt driven data transfer.
If DMAE = 1, the PCM-3718H/3718HG will generate
an interrupt when it receives a T/C (terminal count)
signal from the PC’s DMA controller, indicating that a
DMA transfer has been completed. Use this setting for
DMA data transfer. The DMA transfer is stopped by
the interrupt caused by the T/C signal. See DMAE
below.
I2 to I0 Selects the interrupt level.
Interrupt level INL2 INL1 INL0
N/A 0 0 0
N/A 0 0 1
IRQ2 0 1 0
IRQ3 0 1 1
IRQ4 1 0 0
IRQ5 1 0 1
IRQ6 1 1 0
IRQ7 1 1 1