RM0029 Datasheet, PDF (1588/1740 Pages) STMicroelectronics – The primary objective of this document

FlexRay Communication Controller (FlexRay)
RM0029
Table 899. Double transmit message buffer state description (commit side) (continued)
State
FR_MBCCSR(2n)
EDS LCKS
Access region
Appl. Module
Description
HDisLck 0
Disabled and Locked – Message Buffer under
1
CFG
SS configuration.
Commit Side can not be used for internal message transfer.
HLck
1
Locked – Applications access to data, control, and status.
1
MSG
SS
Commit Side can not be used for internal message transfer.
RESET_STATE
HDis
HE
IE
IS
CCITx
HD
IS
IE
CCSaCCITx
SU
Idle
DSS
SA
DSS
CCSa
STS
MA
SSS
STS
CCNf
IS
IE
CCNfCCITx
CCSu
SSS
CCTx
TX
CCMa
IS
IE
CCMaCCITx
Figure 969. Double transmit message buffer state diagram (transmit side)
A description of the states of the transmit side of a double transmit message buffer is given
in Table 900.
Table 900. Double transmit message buffer state description (transmit side) (sheet 2 of 2)
State
FR_MBCCSRn Access region
EDS LCKS Appl. Module
Description
Common states
HDis
0
0
CCITx
1
0
Transmit side specific states
CFG
—
Disabled – Message Buffer under configuration.
—
Excluded from message buffer search.
TX
Internal Message Transfer – Message Buffer Data
transferred from commit side to transmit side
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