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5.61Mailbox-to-QueueMappingRegisterLn(RXU_MAP_Ln)
SRIORegisters
Figure117.Mailbox-to-QueueMappingRegisterLn(RXU_MAP_Ln)
31-3029-2423-2221-16
LETTER_MASMAILBOX_MASKLETTERMAILBOX
K
RW-0x03RW-0x3FRW-0x00RW-0x00
LEGEND:R=Readonly;-n=valueafterreset
15-0
SOURCEID
RW-0x00
LEGEND:R=Readonly;-n=valueafterreset
Table91.Mailbox-to-QueueMappingRegisterLn(RXU_MAP_Ln)FieldDescriptions
BitFieldValueDescription
31-30LETTER_MASKAllowedlettermaskforthismappingregister
29-24MAILBOX_MASKAllowedmailboxmaskforthismappingregister
23-22LETTERAllowedletterforthismappingregister
21-16MAILBOXAllowedmailboxforthismappingregister
15-0SOURCEIDTheSOURCEIDfieldisusedtoindicatewhichexternaldevicehasaccesstothemappingentry
andcorrespondingqueue.AcompareisperformedbetweenthesourceIDoftheincomingmessage
packetandeachrelevantmailbox/lettertablemappingentrySOURCEIDfield.Amiscompare
resultsinanERRORresponsebacktothesenderandthetransactionisloggedintheLogical
LayerErrorManagementcaptureregisters.
SPRU976–March2006SerialRapidIO(SRIO)163
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