Section 7: Command reference
Models 707B and 708B Switching Matrix Reference Manual
7-176
707B-901-01 Rev. A / August 2010
Bit Value
Description
B2
status.ERROR_AVAILABLE
status.EAV
Set summary bit indicates that an error or status message
is present in the Error Queue.
Bit 2 decimal value: 4
B3
status.QUESTIONABLE_SUMMARY_BIT
status.QSB
Set summary bit indicates that an enabled questionable
event has occurred.
Bit 3 decimal value: 8
B4
status.MESSAGE_AVAILABLE
status.MAV
Set summary bit indicates that a response message is
present in the Output Queue.
Bit 4 decimal value: 16
B5
status.EVENT_SUMMARY_BIT
status.ESB
Set summary bit indicates that an enabled standard event
has occurred.
Bit 5 decimal value: 32
B6
status.MASTER_SUMMARY_STATUS
status.MSS
Set bit indicates that an enabled Master Summary Status
(MSS) bit of the Status Byte Register is set.
Bit 6 decimal value: 64
B7
status.OPERATION_SUMMARY
status.OSB
Set summary bit indicates that an enabled operation event
has occurred.
Bit 7 decimal value: 128
In addition to the above values,
nodeEnableRegister
can be set to the decimal equivalent of the bit to set. To
set more than one bit of the register, set
nodeEnableRegister
to the sum of their decimal weights. For
example, to set bits B0 and B7, set
nodeEnableRegister
to 129 (1 + 128).
Bit
B7 B6 B5 B4 B3 B2 B1 B0
Binary
value
0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1
Decimal
128
64 32 16 8 4 2 1
Weights (2
7
) (2
6
) (2
5
) (2
4
) (2
3
) (2
2
) (2
1
) (2
0
)
Example 1
nodeEnableRegister = status.MSB + status.OSB
status.node_enable = nodeEnableRegister
Sets the MSB and OSB bits of the status
node enable register using constants.
Example 2
-- decimal 129 = binary 10000001
nodeEnableRegister = 129
status.node_enable = nodeEnableRegister
Sets the MSB and OSB bits of the status
node enable register using a decimal
value.
Also see
(on page 7-190)
Status byte and service request (SRQ)
