Instruction Manual

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Page106
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GNAV540UserManual
7430‐0808‐01Rev.B
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softwareStatusField Bits Values
turnSwitch 3
0=off,1=yawrategreaterthanturnSwitch
hold
thres
Reserved 4 N/A
noMagnetometerheading
Reference(T0N/A)
5 0=aidedwithMagnetometerheadingre
ence
ference
1=noMagnetometerheadingrefer
noGPSTrackReference(T0N/A) 6 0=aidedwithGPStrackre
oGPStrackreference
ference
1=n
Reserved 7:15 N/A
sensorStatusField
ThesensorStatusfieldcontainsflagsthatindicatevariousinternalsensorconditionsandalertsthatarenoterrorsor
problems.ThesensorStatusflagintheBITstatusfieldisthebit‐wiseORofthelogicalANDofthesensorStatusfield
andthesensorStatusEnablefield.ThesensorStatusEnablefieldisabitmaskthatenablesselectingitemsofinterest
thatwilllogicallyflowuptothemasterStatusflag.
Table92sensorStatusFields
sensorStatusField Bits Values
overRange 0 0=notasserted,1=asserted
Reserved 1:15 N/A
ConfiguringmasterStatus
Themas eReadFieldandWriteField
comman
terStatusbyteanditsassociatedprogrammablealertsareconfiguredusingth
dasdescribedin
Chapter10.ProgrammingGuidelines.
Table93
belowshowsthedefinitionofthebitmaskforconfiguringthestatussignals.
Table93masterStatusFields
ConfigurationFields FieldID ValidValues Description
hardwareStatusEnable 0x0010 Any Bitmaskofenabledhardwarestatussignals
comStatusEnable 0x0011 Any Bitmaskofenabledcommunicationstatussignals
softwareStatusEnable 0x0012 Any Bitmaskofenabledsoftwarestatussignals
sensorStatusEnable 0x0013 Any Bitmaskofenabledsensorstatussignals
hardwareStatusEnableField
ThisfieldisabitmaskofthehardwareStatusfield(refertoBITStatusFieldsonpage98).Thisfieldallowstheuser
todeterminewhichlowlevelhardwareStatusfieldsignalswillflagthehardwareStatusandmasterStatusflagsinthe
BITstatusfield.AnyassertedbitsinthisfieldimplythatthecorrespondinghardwareStatusfieldsignal,ifasserted,
willcausethehardwareStatusandmasterStatusflagstobeassertedintheBITstatusfield.