FlexRay Communication Controller (FLEXRAY)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
30-53
Preliminary
Table 30-54. SSCCR Field Descriptions
Field
Description
WMD
Write Mode. This control bit defines the write mode of this register.
0 Write to all fields in this register on write access.
1 Write to SEL field only on write access.
SEL
Selector. This field selects one of the four internal slot counter condition registers for access.
00 select SSCCR0.
01 select SSCCR1.
10 select SSCCR2.
11 select SSCCR3.
CNTCFG
Counter Configuration. These bit field controls the channel related incrementing of the slot status counter.
00 increment by 1 if condition is fulfilled on channel A.
01 increment by 1 if condition is fulfilled on channel B.
10 increment by 1 if condition is fulfilled on at least one channel.
11 increment by 2 if condition is fulfilled on both channels channel.
increment by 1 if condition is fulfilled on only one channel.
MCY
Multi Cycle Selection. This bit defines whether the slot status counter accumulates over multiple
communication cycles or provides information for the previous communication cycle only.
0 The Slot Status Counter provides information for the previous communication cycle only.
1 The Slot Status Counter accumulates over multiple communication cycles.
VFR
Valid Frame Restriction. This bit is used to restrict the counter to received valid frames.
0 The counter is not restricted to valid frames only.
1 The counter is restricted to valid frames only.
SYF
Sync Frame Restriction. This bit is used to restrict the counter to received frames with the sync frame indicator
bit set to 1.
0 The counter is not restricted with respect to the sync frame indicator bit.
1 The counter is restricted to frames with the sync frame indicator bit set to 1.
NUF
Null Frame Restriction. This bit is used to restrict the counter to received frames with the null frame indicator
bit set to 0.
0 The counter is not restricted with respect to the null frame indicator bit.
1 The counter is restricted to frames with the null frame indicator bit set to 0.
SUF
Startup Frame Restriction. This bit is used to restrict the counter to received frames with the startup frame
indicator bit set to 1.
0 The counter is not restricted with respect to the startup frame indicator bit.
1 The counter is restricted to received frames with the startup frame indicator bit set to 1.
STATUSMASK Slot Status Mask. This bit field is used to enable the counter with respect to the four slot status error indicator
bits.
STATUSMASK[3] – This bit enables the counting for slots with the syntax error indicator bit set to 1.
STATUSMASK[2] – This bit enables the counting for slots with the content error indicator bit set to 1.
STATUSMASK[1] – This bit enables the counting for slots with the boundary violation indicator bit set to 1.
STATUSMASK[0] – This bit enables the counting for slots with the transmission conflict indicator bit set to 1.
Table 30-55. Mapping between internal SSCCRn and SSCRn
Condition Register Condition Defined for Register
SSCCR0
SSCR0
SSCCR1
SSCR1
SSCCR2
SSCR2
SSCCR3
SSCR3