Chapter 3 Function Description 27
c) Finally, enable the pattern match function for port A0 of the PCI-
1753 by writing a “1” in bit 0 of Base+16.
d) When the input signals at channels PA01, PA02 and PA07 are high
and PA06 is low, an interrupt signal will be generated. This result is
not affected by the states of channels PA00, PA03, PA04 and PA05.
3.3.8 Change of State Interrupt Function
The PCI-1753/1753E also provides the change of state interrupt
function for port B0. It monitors the status of the enabled channels of
port B0, which are chosen in Base+28 (or Base+60 for the PCI-
1753E). When one of the enabled channels changes its state, the PCI-
1753 delivers an interrupt signal to the system to handle this event.
The following is an example.
Example 4.2 Assume that the change of state interrupt function for
the I/O channels PB01, PB02, PB06 and PB07 on the PCI-1753E are
enabled (i.e. the signals in PB00, PB03, PB04 and PB05 on the PCI-
1753E and port B0 of the PCI-1753 are ignored during the change of
state process). When a change of state occurs in either PB01 or PB02
or PB06 or PB07, an interrupt signal will be delivered to the system.
a) First, enable the change of state interrupt function for PB01, PB02,
PB06 and PB07 of the PCI-1753E.
Bit #
7
6
5
4
3
2
1
0
Base+60
1
1
0
0
0
1
1
0
M1
Description
1
Enable the pattern match interrupt function for port A0
0
Disable the pattern match interrupt function for port A0
Summary of Contents for PCI-1753
Page 1: ...PCI 1753 1753E 96 192 bit Digital I O Card User s manual ...
Page 5: ...1 General Information CHAPT ER ...
Page 11: ...Chapter 1 Gerneral Information 7 Figure 1 1 PCI 1753 1753E Block Diagram 1 6 Block Diagram ...
Page 12: ...8 PCI 1753 User s Manual ...
Page 13: ...Chapter 2 Installation 9 2 Installation C H A P T E R ...
Page 20: ...16 PCI 1753 User s Manual ...
Page 21: ...Chapter 3 Function Description 17 3 Operation C H A P T E R ...
Page 33: ...Appendix A Calibration 29 A Register Format of PCI 1753 1753E A P P E N D I X ...
Page 36: ...32 PCI 1753 User s Manual ...
Page 37: ...Appendix A Calibration 33 B Pin Assignments of Cable PCL 10268 A P P E N D I X ...