User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 61
Issue 1 06/01
Figure 46. COBBA read
Figure 46 is a COBBA read.
The MADLinda writes first the address to be read, deactivates the COBBACSX
line and then activates the COBBACSX line again. Then the COBBA_GJP
sends the requested data. There should be non–zero reads.
If no non–zero reads from COBBA can be seen, COBBA (N200) may be faulty.
If both reads and writes of non–zero values can be seen and the signal charac-
teristics were good, the COBBA serial control interface is working correctly.