VXI Technology, Inc.
24
SVM2608 Preparation for Use
S
ETTING THE
B
ASE
A
DDRESS
The base address of the SVM2608 is determined by using the offset value (OV), set by two rotary
switches located on the top edge of the interface card (Figure 2-1), and multiplying it by 2
24
(or
16,777,216) to get the base address in A32 address space. The switches are labeled with positions
0 through F. The switch located at
S3
corresponds to the Most Significant Bit (
MSB
) and
S2
corresponds to the Least Significant Bit (
LSB
). (Note,
S1
is not used in the determination of the
base address.) To set the OV to
25
, first convert the decimal number to the hexadecimal value of
0x19
. Next, set switch S3 to
1
, and then set switch S2 to
9
. See Figure 2-2. Two conversion
examples are provided on the following pages.
S1
S2
S3
F
IGURE
2-1:
R
OTARY
S
WITCH
L
OCATIONS
Содержание SVM2608
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