98
Chapter 4 Features and Functions
Digital I/O Operation
4
About Flow Control Modes (Handshake)
Five flow control modes are available for Digital I/O operations. Some
modes use one or more of the three flow control lines: I/O Direction,
PFLG, and PCTL. Select the flow control you need for your digital input/
output applications.
Note The polarity of the flow control lines is assumed to be positive (the
default) in the following diagrams and discussions.
Mode
Number
Handshake
Mode
Definition
Notes
1 Static mode #1 Default handshake mode.
2 Static mode #2 Read what was written.
3 Read or Write
and strobe
If you set a port to this mode, you cannot use
the port in a scan list or use card pairing
(ROUTe:CPAir).
4 Read and write
strobe
If you set a port to this mode, you cannot use
the port in a scan list or use card pairing
(ROUTe:CPAir).
5 Full handshake If you set a port to this mode, you cannot use
the port in a scan list or use card pairing
(ROUTe:CPAir).
To Next Page
Loading...
Need help?
General