402-00005-00
Registers
3–20
Rev 02; February 8, 2002
3.2.4.2 Interrupt on Bus Master Transfer Done (BINTEN) R/W
This bit enables a PCI-bus interrupt to be generated when the Bus Master Transfer Count reaches a value of zero
during a bus master write transfer from the PCVisionplus (transfer count zero indicates transfers is done).
BINTEN
Function
0
Disable Transfer-done interrupt
1
Enable Transfer-done interrupt
3.2.4.3 PCI Interrupt Status (INTST) R/W1C
This bit indicates that a PCI-bus interrupt was generated by the source selected in the BMCINTEN register. The
INTEN bit must be one for this bit to operate. This bit is always zero if the INTEN is zero. This bit operates as read/
write-one-clear. Writing one to this bit resets it to zero. Writing zero has no effect. Refer to Chapter 2 for the correct
sequence for setting and clearing interrupts.
INTST
Function
0
No PCVisionplus interrupt pending
1
PCVisionplus interrupt pending
3.2.4.4 Bus Master Interrupt Status (BINTST) R/W1C
This bit indicates that a PCI-bus interrupt was generated due to the bus master transfer count register reaching a value
of zero indicating the completion of the transfer. The BINTEN bit must be one for this bit to operate. This bit is
always zero if the BINTEN is zero. This bit operates as read/write-one-clear. Writing one to this bit resets it to zero.
Writing zero has no effect.
BINTST
Function
0
No transfer-done interrupt pending
1
Transfer-done interrupt pending
3.2.4.5 Master Abort Interrupt Status (MAINT) R/W1C
This bit indicates that a PCI-bus interrupt was generated by the PCVisionplus encountering a Master Abort on the
PCI-bus. A Master Abort occurs when there is no target response to a PCI bus cycle. This interrupt source is always
enabled. This bit operates as read/write-one-clear. Writing one to this bit resets it to zero. Writing zero has no effect.
MAINT
Function
0
No master-abort interrupt pending
1
Master-abort interrupt pending
3.2.4.6 Target Abort Interrupt Status (TAINT) R/W1C
This bit indicates that a PCI-bus interrupt was generated by the PCVisionplus encountering a Target Abort during a
PCI Bus cycle in which the PCVisionplus was bus master. This interrupt source is always enabled. This bit operates
as read/write-one-clear. Writing one to this bit resets it to zero. Writing zero has no effect.
TAINT
Function
0
No target-abort interrupt pending
1
Target-abort interrupt pending
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