Service manual

Figure 4–5: <REFERENCE>(XRP) Power-Up Sequence, Part 1 of 2
Power-up or system reset (cold)
CPU 1
CPU 2
CPU n
Self-Test
Self-Test
Self-Test
. . .
Determine
Boot Processor
. . .
Determine
Boot Processor
Determine
Boot Processor
. . .
Determine
Boot Processor
. . .
Determine
Boot Processor
Determine
Boot Processor
Boot Processor prints
self-test results
Boot Processor tests
all memory modules
Boot Processor signals
all CPUs to start CPU/MEM tests
CPU 1
CPU/MEM tests
CPU 2
CPU/MEM tests
CPU n
CPU/MEM tests
A
msb-0047-89
1
2
3
4
5
NOTE: The second determination of the boot processor occurs
even if the original boot processor passes all memory tests.
<REFERENCE>(XRP) Scalar Processor 4–13