Motorola PPC/CPCI-690, Reference Manual, Page: 137 / 176

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