Table of Contents
Advertisement
Buses
PPC/CPCI-690
Table 18: SENTINEL SPROM Contents
Register Name
Offset
Magic word
Downstream IR
mask
Upstream IR
mask
Downstream BAR
0 DSR setup
Downstream BAR
0 DSR translate
Downstream BAR
2 DSR setup
Downstream BAR
2 DSR translate
Downstream BAR
3 DSR setup
Downstream BAR
1C
3 DSR translate
Downstream BAR
4 DSR setup
Downstream BAR
4 DSR translate
Upstream BAR 2
DSR setup
Upstream BAR 2
2C
DSR translate
Memory base pre-
load
Memory limit
preload
Configurable
0
No
16
2
No
16
6
No
16
8
Yes
16
C
Yes
16
10
Yes
16
14
Yes
16
18
Yes
16
Yes
16
20
Yes
16
24
Yes
16
28
Yes
16
Yes
16
30
No
16
32
No
16
Default Value
Comment
1146
16
FFFF
16
FFFF
16
FFFFF000
Maps 4 KByte DSR reg-
16
isters by default.
Larger values provide
access to on-board
resources. A value less
than FFFFF000 is not
allowed.
00000000
16
FFF00000
This defines a default
16
PCI window of
1 MByte.
00000000
16
00000000
16
00000000
16
00000000
16
00000000
16
FFF00000
Defines a default PCI
16
window of 1 MByte.
00000000
16
0001
These two settings
16
effectively disable the
memory window
(base>limit).
0000
16
PCI Bus 0
-
-
-
-
-
-
-
-
-
-
-
5 - 9
Advertisement
Table of Contents
