
3020-XX-UM
ProDAQ 3020 USB2.0 VXIbus Slot-0 Interface User Manual
Page 48 of 60
Copyright, © 2003 Bustec Production Ltd.
value at power-up. If a logical address of 255 (FF
hex
) is assigned to the module, it will take
part in the dynamic configuration protocol and the resource manager will use this register
to assign a logical address to the module.
5.2.3 Dev
ice
Type
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Operation
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Initial
0x
00
CC if slot
-
0, 0x
0
BCC otherwise
Content
s
ModelCode[1
5
:0]
ModelCode[1
5
:0]
This field contains a
device dependent type
identifier.
As defined
by the VXIbus standard, the module uses two different identifier,
depending on whether the module is placed in the left most slot of
a VXI mainframe (slot “0”) and is used as VXI slot-0 controller or
not:
Identifier when used as
slot
-
0
controller
:
0x
00
CC
Identifier when not used as
slot
-
0
controller
:
0x
0
BCC
5.2.4 Status
Register
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Operation
-
RO
RO
-
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
-
-
Initial
X
H
H
X
H
H
H
H
H
H
H
H
H
H
X
X
Content
s
N.U.
M
O
DID*
Sl
o
t
0
N.U.
Logical Address
Rea
d
y
Pa
s
s
e
d
N.U.
N.U.
MODID*
A one (1) indicates that the device is not selected via the P2
MODID line. A zero (0) indicates that the device is selected by a
high state on the MODID line.
Slot
0
A
o
ne (1) indicates that the module is in the leftmost slot of a
VXIbus system.
Logical Address
Contains the logical address the
module
is configured for.
Ready
A zero (0) means the device is executing its self-test.
Passed
After completing the self-test (signaled by a one (1) in the Ready
bit), the Passed bit indicates the state of the self-test. A one (1)
indicates that the self-test has successfully completed. A zero (0)
means that the device has failed its self-test.
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