Rastergraf
Programming On-board Devices 3-9
3.2.12 Borealis Build Options and Power-up Settings
The Borealis is a “Plug and Pray” device, whose operation depends on the
software. Except as documented in
Section 2.3.3
, there are no user
jumpers.
The Technical Manual documents a number of register preloads and
functional settings that are determined by 0 ohm resistors installed during
manufacturing and read by the Borealis on power up.
Note:
Software cannot override the values set by the 0 ohm resistors.
Please contact Rastergraf if it is necessary to change a value.
Table 3-1 Borealis Configuration Settings
CJ
In/Out
Function
Default
31 in
out
16 MB video memory
30
in
PCIBAR 0, 1
address size
32 MB video memory
29
in
BIOS PROM enable
Enabled
out VGA
JP201
in
PCI device sub class
“Other Device”
27 in
26 in
SGRAM density
32 Mb x 32 bit wide
25 in Internal
RAMDAC
Enabled
24 in Enable
SGRAM
Enabled
23 in
Enable
PCI
Enabled
22-20
out
Subsystem ID Code
CJ19 out for 16 MB Board
CJ19 in for 32 MB Board
out
16 MB video memory
19
in
32 MB video memory
18 in
17 in
Subsystem ID
16
in
Enable Sub. Vendor ID
Enabled
15-13 in
12 out
11-8 in
7-4 out
3-0 in
Subsystem Vendor ID
Rastergraf
PCI Vendor ID
0x10F0
