Agilent Technologies E6198B, Руководство пользователя

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B-2 E6198B Switch/Load Unit User Manual
B
Register Definitions
Address Space
The Switch/Load Unit address space is divided as follows:
FFFSSSSSRRRRRRRR
2
where:
F = Frame select 0-7
S = Slot number 0-21 (E6918A)
R = Register offset 0-255
Use slot number 0 for Switch/Load Unit backplane access. For
Switch/Load Unit Pin Matrix, Load or Custom cards, slot
numbers are depending on the slot availability; 1-21 for E6198B.
For ease of configuration and for software auto detection, all of
the Switch/Load Unit cards (and backplane) conform to an
address map structure that begins with the three registers as
show in
Table B-1 .
Table B-2 shows the values returned from each card’s Card
Type register.
Table B-1 Standard Registers
Register Offset Register Name Description
00
h
Card type See Table B-2 .
01
h
Card configuration Defaults to FF
h
unless changed by user.
02
h
Status/Control Card specific controls.
Table B-2 Standard Registers
Model Number Card Type Value Description
Agilent E6175A 01
10
(01
h
) 8-Channel Load Card
Agilent E6176A 02
10
(02
h
) 16-Channel Load Card
Agilent E6177A 03
10
(03
h
) 24-Channel Load Card
Agilent U7177A 24
10
(18
h
) 24-Channel Load Card
Agilent E6178B 04
10
(04
h
) 8-Channel Heavy Duty Load Card
(30 Amp)
Agilent N9378A 05
10
(05
h
) 24-Channel Low Res Load Card
Agilent N9379A 06
10
(06
h
) 48-Channel Load Card
Agilent N9377A 07
10
(07
h
) 16-Dual Channel Load Card