Controlling And Monitoring High Availability Signals; Table 5-1 Poweron-Vector Variable Bit Definition And Power Setting - Sun Microsystems Netra CP2000 Series Programming Manual

The poweron-vector configuration variable is an 8-bit bit-vector that indicates
which CompactPCI slots will be powered on during the chassis power-on. By setting
this variable, you set which slots in the chassis will be powered on.
Note – You can use the poweron-vector variable only when the
ha-signal-handler variable is set to 1.
TABLE 5-1
TABLE 5-1
Bit
7
6
5
4
3
2
1
0
If you are developing an application that controls the power of every slot in the
chassis, you must shut off the power-on bit-vector for every slot. At the ok prompt,
use the setsmcenv command to set the poweron-vector variable to 0xff:
ok setsmcenv poweron-vector ff
Note – It is not possible to control the powering of the Netra CP2140 board system
controller slots. They will always be powered on by the SMC module irrespective of
the value of ha-signal-handler.
Controlling and Monitoring High Availability
Signals
Each slot has BDSEL#, HEALTHY#, and RESET# signals. These HA signals can be
controlled and monitored by an application. An extra flag, called slot_flg, is also
available that indicates whether a slot is empty or full.
90 Netra CP2000 and CP2100 Series cPCI Boards Programming Guide • October 2004
defines the poweron-vector variable's 8-bit vector.
poweron-vector Variable Bit Definition and Power Setting
Slot Power Setting
Not in use
8 0 is on, 1 is off
7 0 is on, 1 is off
6 0 is on, 1 is off
5 0 is on, 1 is off
4 0 is on, 1 is off
3 0 is on, 1 is off
2 Not supported since the SBC can occupy this slot