Register Definitions B
E6198B Switch/Load Unit User Manual B-5
Card Type (R)Base + 0
h
This register reads back 1E
h
(30
10
) for E6198B for the
Switch/Load Unit.
• Read Only
• Power On/Reset State = 1E
h
(30
10
) for E6198B.
Card Configuration (R) Base + 1
h
For the Switch/Load Unit, this register always returns FF
h
(255
10
).
Status Register (R) Base + 2
h
The status register provides readback of the current Reset and
Busy status of the backplane. Busy~ is an open collector line
that any slot can drive to indicate its status, typically a relay
timer. The state of Busy~ upon reset may be transient.
• Read Only
• Undefined bits readback as all 1s
• Busy~: 0 = Busy, 1 = Ready.
• Reset~: 0 = reset active (Switch/Load Unit is currently being
reset), 1 = reset inactive
Bits 7-0
Read Card Type
Setting (E6198B) 1E
h
Bits 7-0
Read
Card
Configuration
Setting
FFh
Bits 7-2 1 0
Read
Undefined Reset~ Busy~
Setting All 1s state state
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