User`s manual

Appendix C Trouble Shooting
Prox-1750G1/G2 USER ′ S MANUAL
Page: C-13
48h :
Reserved
49h :
1. Calculate total memory by testing the last double word of each
64K page.
2. Program writes allocation for AMD K5 CPU.
4Ah
:
Reserved
4Bh
:
Reserved
4Ch
:
Reserved
4Dh
:
Reserved
4Eh
:
1. Program MTRR of M1 CPU
2. Initialize L2 cache for P6 class CPU & program CPU with
proper cacheable range.
3. Initialize the APIC for P6 class CPU.
4. On MP platform, adjust the cacheable range to smaller one in
case the cacheable ranges between each CPU are not identical.
4Fh
:
Reserved
50h :
Initialize USB
51h :
Reserved
52h :
Test all memory (clear all extended memory to 0)
53h :
Reserved
54h :
Reserved
55h :
Display number of processors (multi-processor platform)
56h :
Reserved
57h :
1. Display PnP logo
2. Early ISA PnP initialization
-Assign CSN to every PnP device.