Enhanced Mode - Contec F&eIT Series User Manual

Enhanced Mode

Flowchart
Start
Initialize
Change interrupt
vectors
No
CH0 LSR D5
Bit = 1
Yes
Send CH0 data
Show an
interrupt count
No
End of interrupt?
Yes
No
CH1 LSR D5
Bit = 1
Yes
Send CH1 data
Show an
interrupt count
No
End of interrupt?
Yes
Restore the
interrupt vector
Show data
End
COM-1PD(FIT)GY
Interrupt
processing
Read interrupt
vector register
No
CH0 IVR D0
Bit = 0
Read CH0 data
No
CH0 LSR D5
Bit = 0
Yes
No
CH0 IVR D0
Bit = 0
Yes
Read CH1 data
No
CH1 LSR D5
Bit = 0
Yes
No
IVR=FH
Yes
EOI
End
Count number
of interrupts
Count number
of interrupts
5. Using the Module
33