GRT1-ML2 timing
PROGRAMMING MANUAL
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GRT1-ML2 timing
This appendix describes the I/O timing issues for the communication
between the TJ2-MC64, the GRT1-ML2 and the SmartSlice I/O Units. The
information in this section is useful for planning operations that require strict
control of the I/O timing.
In this section, the following is assumed:
•
All required slaves participate in the communication.
•
The TJ2-MC64 and the GRT-ML2 have no error indications.
•
The I/O configuration is properly registered.
•
All filter functions in the SmartSlice I/O Units are disabled.
A.1
Timing concepts
A.1.1
Refresh cycles
There are two refresh cycles involved in the timing issues:
•
The refresh cycle between the TJ2-MC64 and the GRT1-ML2
•
The refresh cycle between the GRT1-ML2 and the SmartSlice I/O Units.
Note
To register the I/O configuration, use the REGS dipswitch. See the
Trajexia Hardware Reference Manual.
Note
If the I/O configuration is not properly registered, the system can
operate, but the data exchange is delayed.