Interrupt Configuration Register Base; Interrupt Status Register Base - HP E1313A Manual

Interrupt System Registers
Interrupt Configuration Register
Address 15
Base + 14 Limit Test
16
Exceeded
Interrupt Status Register
Appendix D
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Read/Write: The Interrupt Configuration Register is used to select the VXI
interrupt level to be used when the module interrupts, and controls which
events are enabled to cause a VXI interrupt.
14 13 12
SCP Trig Meas Trig Too
Complete Fast
Interrupt Mask (bits 15 - 8): Writing a one (1) to a bit enables that bits
interrupt. Writing a zero (0) to a bit disables that bits interrupt.
Interrupt Level: This field sets the interrupt level that the module will
interrupt on. Setting the interrupt level to 0 will disable the card from
interrupting.
Bit 2 Bit 1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
Read/Write: The Interrupt Status Register returns the state of all sources of
interrupt regardless of state of the Interrupt Mask Register. There are two
types of interrupts, level and strobed. Level interrupts are interrupts that
persist from an interrupt source and requires the host to service the interrupt
through reads and writes to the interrupt source. Strobed interrupts are
interrupts that do not persist and require the host to acknowledge the
interrupt by writing a one (1) back to the appropriate bit in the Interrupt
Status Register.
11 10 9
Over V Scan FIFO
Detect Complete over-
flowed
Bit 0 Interrupt Level:
0 Disabled
1 IRQ1
0 IRQ2
1 IRQ3
0 IRQ4
1 IRQ5
0 IRQ6
1 IRQ7
Register-Based Programming
Base + 14
16
8 2 - 0
7 - 3
FIFO not Interrupt
Half full used Level
Base + 16
16
347