Advantech PCI-1751U Manual de usuario descargar pdf (Pagina 26)

PCI-1751U User Manual 22

3.4.4 Interrupt Source Control

The "mode bits" in the interrupt control register determine the allowable

sources of signals generating an interrupt. Bit 0 and bit 1 determine the

interrupt source for port 0, and bit 4 and bit 5 determine the interrupt

source for port 1, as indicated in Figure 3-3. Table 3-3 shows the rela-

tionship between an interrupt source and the values in the mode bits.

Figure 3.3: Figure 3-3: Interrupt sources

Table 3.3: Interrupt mode bit values

Port 1 Port 0

M11 M10 Description M01 M00 Description

0 0 Disable interrupt 0 0 Disable interrupt

0 1 Source = PC10 0 1 Source = PC00

Source = PC10 &

PC14

Source = PC00 &

PC04

Source = Counter

1 1 Source = Timer

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 37 38

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Advantech PCI-1751U Manual de usuario Pagina 26