Initialization Sequence; Srom Test Flows - DEC Digital Alpha VME 4/224 User Manual

4.4 Initialization Sequence

The diagnostic test sequence for a full power-on reset and initialization is shown
in Figures 4–3, 4–4, and 4–5.
Figure 4–3 SROM Test Flows
Power-on/Reset
LED
Display
Initialize 21064 and 21072 chipset
8 Initialize SIO chip
7
Console serial port initialization
6 Bcache configuration
5
Main memory configuration
4
Bcache initialization
3
Bcache and main memory scrubbed to valid ECC
2 Firmware loaded from flash ROM to
main memory at 8000
Check debug jumper, jump to SROM mini-debugger
1
if jumper installed, else start the console firmware
4–30 Diagnostics
Serial ROM
Serial ROM
Serial ROM
Serial ROM
Serial ROM
Serial ROM
Serial ROM
B
Notes
ML013408