Anyone out there have hardware details on a NEC riscserver 2200

Right now I am attempting to find the video memory addreess...
Winmsd says the physical address is 0x100000...
Eisa config says it is 0xcc0000...
Using "Pandora" application from shows no TLB's physically mapping
0x10000 or 0xcc0000....
I did due some testing and found using a program
that the arcbios bios_write funtion will only display text
if this specific TLB exits( all other TLB's can cleared )

TLB 12:
EntryHi :  800001ff:e2000000   (r=2 vadr=00:e2000000 ASID=0000)
EntryLo0 : 00000000:02400017   (PADR:00:90000000 C=2 D=1 V=1 G=1)
EntryLo1 : 00000000:04000017   (PADR=02:00000000 C=2 D=1 V=1 G=1)
PageMask 01ffe000

I believe the above TLB is for the EISA controller (the page size is
16M)...So it is a huge range and trying to find the video buffer in it
is like looking for a needle in the haystack...

Any one out there can shed some light???