Bus Error Test (Berr) - Motorola M68CPU32BUG User Manual

BERR
6.6 BUS ERROR TEST
CPU32Diag>BERR
BERR tests for local bus time-out and global bus time-out bus error conditions, including the
following:
No bus error by reading from ROM
Local bus time-out by reading from an undefined FC location
Local bus time-out by writing to an undefined FC location
EXAMPLE
After the command has been issued, the following line is printed:
BERR Bus Error Test.....................Running ---------->
If a bus error occurs in the first part of the test, then the test fails and the display appears
as follows.
BERR Bus Error Test.....................Running ---------->..... FAILED
Got Bus Error when reading from ROM
If no bus error occurs in one of the other parts of the test, then the test fails and the
appropriate error message appears as one of the following:
No Bus Error when reading from BAD address space
No Bus Error when writing to BAD address space
If all three parts of the test are completed correctly, then the test passes.
BERR Bus Error Test.....................Running ----------> PASSED
M68CPU32BUG/D REV 1
Bus Error Test
6-23
DIAGNOSTIC FIRMWARE GUIDE
BERR