SBE HighWire HW400c/2 User Manual
HighWire HW400c/2 User Reference Guide Rev 1.0
4.2.4 Memory Option Register (MOR)
T
The Memory Option Register (MOR) is a Read-Only register. This register reports
the presence and size of the M-Systems Disk on Chip device.
the presence and size of the M-Systems Disk on Chip device.
able 33. Memory Option Register (MOR) Offset Address 0x07
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DOC3 DOC2 DOC1 DOC0
Reserved Reserved Reserved
Reserved
DOC3 =
0
Disk-on-Chip
de-populated
OC[2:0]
= 000
Disk-on-Chip Size is 64 MB
= 001
Disk-on-Chip Size is 128 MB (default)
Disk-on-Chip Size is 256 MB
Disk-on-Chip Size is 512 MB
Disk-on-Chip Size is 256 MB
Disk-on-Chip Size is 512 MB
4.2.5 Geographi
he Geographic Addressing Register (GAR) is a Read Only register. This register
sh
pactPCI
backplane connectors J2 and/or J4.
Ge
Ge
ical A
sing B
ine a
al loc
slot) i
ompa
b
. T
s o
4 s
ide
e r
bo
connectors mirroring the bit
that in s
onfigur
ns (e.g.
lane
r a non H.110 backplane) one or the other connector may not be present. For a
of th
grap
MG 2.0 and PICMG 2.5.
T
g
d
08
Bit 7
Bit 6
Bit 0
= 1
Disk-on-Chip populated (default)
D
= 010
= 011
= 100
Disk-on-Chip Size is 1 GB
= 101
Disk-on-Chip Size is 2 GB
= 110
Disk-on-Chip Size is 4 GB
= 111
Disk-on-Chip Size is 8 GB
c Addressing Register (GAR)
T
ows the value of the Geographic Address Bits as read from the Com
ograph
ddres
its def
physic
ation (
n the C
ctPCI
ackplane
he setting
f J2 and J
hould be
ntical. Th
eason for
th
s is
ome c
atio
a non-PCI backp
o
definition
definition
e Geo
hic Address Bits, see PIC
able 34. Geo raphic A dressing Register (CSR) Offset Address 0x
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Reserved
Re
d
GA2 GA1 GA0
Reserved
serve
GA4 GA3
GA[4:0]
=
Geographic Address Bits as read from CompactPCI J2
onnectors
and/or J4 (backplane) c
October 10, 2006
Copyright 2006, SBE, Inc.
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