User manual

C.8 Interrupt Status Register — BASE+8H/CH/10H
The PCI-1730 Interrupt Status Register control the status of four interrupt
signal sources (IDI0, IDI1, DI0, DI1).
Table C-8 Register for interrupt status
Read Interrupt Status Register
Bit # 7 6 5 4 3 2 1 0
BASE + 8H DI1EN DI0EN IDI1EN IDI0EN
BASE + CH DI1RF DI0RF IDI1RF IDI0RF
BASE + 10H DI1F DI0F IDI1F IDI0F
IDI/DInF Interrupt flag bits (n = 0 ~ 1)
This bit is a flag indicating the status of an interrupt. User
can read this bit to get the status of the interrupt
0 No interrupt
1 Interrupt occurred
IDI/DInEN Interrupt enable control bits (n = 0 ~ 1)
Read this bit to Enable/Disable the interrupt.
0 Disable
1 Enable
IDI/DInRF Interrupt triggering control bits (n = 0 ~ 1)
The interrupt can be triggered by a rising edge or falling
edge of the interrupt signal, as determined by the value in
this bit.
0 Rising edge trigger
1 Falling edge trigger
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