Table B-1 Standard Registers; Table B-2 Standard Registers - Agilent Technologies E6198B User Manual

B
Register Definitions
Address Space
B-2
The Switch/Load Unit address space is divided as follows:
FFFSSSSSRRRRRRRR
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-1 Standard Registers

Register Offset Register Name
00 Card type
h
01 Card configuration
h
02 Status/Control
h
Table B-2 shows the values returned from each card's Card
Type register.

Table B-2 Standard Registers

Model Number Card Type Value
Agilent E6175A 01 (01
10
Agilent E6176A 02 (02
10
Agilent E6177A 03 (03
10
Agilent U7177A 24 (18
10
Agilent E6178B 04 (04
10
Agilent N9378A 05 (05
10
Agilent N9379A 06 (06
10
Agilent N9377A 07 (07
10
2
See Table B-2.
Defaults to FF
Card specific controls.
) 8-Channel Load Card
h
) 16-Channel Load Card
h
) 24-Channel Load Card
h
) 24-Channel Load Card
h
) 8-Channel Heavy Duty Load Card
h
(30 Amp)
) 24-Channel Low Res Load Card
h
) 48-Channel Load Card
h
) 16-Dual Channel Load Card
h
E6198B Switch/Load Unit User Manual
Description
unless changed by user.
h
Description