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Bit
7
Purpose
undefined
Setting
x
Bit
Read
Write
E6198B Switch/Load Unit User Manual
Card Configuration (R) Base + 1
This register reads back the card configuration. Card
configuration is determined by the user to distinguish different
load configurations on the same load card type. The default
read back is FF
to create a configuration byte unique to the card. (Note that you
can use the mezzanine card registers described below for load
configuration information.) Use the actions
to read this register.
6
5
undefined
undefined
x
x
• Read Only
• x = undefined
Status & Control (R & W) Base + 2
This register reads back the card's status. It also can be used to
reset the board or open all relays (OAR).
Card status is defined as the state of the relay timer. The relay
timer is designed for the armature relays (>4ms). The timer
restarts whenever the registers controlling the respective relays
are written to or the card is reset. The card remains in the busy
state until the timer has timed out.
7
6
1
1
not used
not used
• Read and Write
• Undefined bits read back as all 1s
• Unused bits for write can be either 0 or 1 (does not matter)
• For BUSY~ (Read Only):
0 = Busy
1 = Ready
• For Reset (Write Only):
0 = no change
1 = causes board reset (non-latched)
, but you can pull down bits to zero as required
h
4
3
undefined
undefined
x
x
5
4
3
1
1
1
OAR
not used
not used
Register Definitions
h
loadCardGetInfo
2
1
undefined
CC1
x
state
h
2
1
1
1
not used
not used
B
0
CC0
state
0
~
Busy
Reset
B-47
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