FlexRay Communication Controller (FlexRAY)
PXN20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor 26-33
26.5.2.20 Protocol Status Register 1 (PSR1)
STARTUP
STATE
Startup State — protocol related variable: vPOC!StartupState. This field indicates the current sub-state of the
startup procedure.
0000 reserved
0001 reserved
0010 POC:coldstart collision resolution
0011 POC:coldstart listen
0100 POC:integration consistency check
0101 POC:integrationi listen
0110 reserved
0111 POC:initialize schedule
1000 reserved
1001 reserved
1010 POC:coldstart consistency check
1011 reserved
1100 reserved
1101 POC:integration coldstart check
1110 POC:coldstart gap
1111 POC:coldstart join
WAKEUP
STATUS
Wakeup Status — protocol related variable: vPOC!WakeupStatus. This field provides the outcome of the
execution of the wakeup mechanism.
000 UNDEFINED
001 RECEIVED_HEADER
010 RECEIVED_WUP
011 COLLISION_HEADER
100 COLLISION_WUP
101 COLLISION_UNKNOWN
110 TRANSMITTED
111 reserved
Base + 0x002A Additional Reset: CSAA, CSP, CPN: RUN Command Write: Normal Mode
0123456789101112131415
R CSAA CSP 0 REMCSAT CPN HHR FRZ APTAC
Ww1c
Reset0000000000000000
Figure 26-20. Protocol Status Register 1 (PSR1)
Table 26-26. PSR1 Field Descriptions
Field Description
CSAA Cold Start Attempt Aborted Flag — protocol related event: ‘set coldstart abort indicator in CHI’
This flag is set when the controller has aborted a cold start attempt.
0 No such event.
1 Cold start attempt aborted.
CSP Leading Cold Start Path — This status bit is set when the controller has reached the POC:normal active state
via the leading cold start path. This indicates that this node has started the network
0 No such event.
1 POC:normal active reached from POC:startup state via leading cold start path.
Table 26-25. PSR0 Field Descriptions (continued)
Field Description
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