FlexRay Communication Controller (FLEXRAY)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
30-55
Preliminary
30.5.2.47 Slot Status Counter Registers (SSCR0–SSCR3)
Each of these four registers provides the slot status counter value for the previous communication cycle(s)
and is updated at the cycle start. The provided value depends on the control bits and fields in the related
internal slot status counter condition register SSCCRn, which can be programmed by using the
Counter Condition Register (SSCCR)
. For more details, see
Section 30.6.18.4, “Slot Status Counter
VFA
Valid Frame on Channel A. Protocol related variable:
vSS!ValidFrame
channel A
0
vSS!ValidFrame
= 0
1
vSS!ValidFrame
= 1
SYA
Sync Frame Indicator Channel A. Protocol related variable:
vRF!Header!SyFIndicator
channel A
0
vRF!Header!SyFIndicator
= 0
1
vRF!Header!SyFIndicator
= 1
NFA
Null Frame Indicator Channel A. Protocol related variable:
vRF!Header!NFIndicator
channel A
0
vRF!Header!NFIndicator
= 0
1
vRF!Header!NFIndicator
= 1
SUA
Startup Frame Indicator Channel A. Protocol related variable:
vRF!Header!SuFIndicator
channel A
0
vRF!Header!SuFIndicator
= 0
1
vRF!Header!SuFIndicator
= 1
SEA
Syntax Error on Channel A. Protocol related variable:
vSS!SyntaxError
channel A
0
vSS!SyntaxError
= 0
1
vSS!SyntaxError
= 1
CEA
Content Error on Channel A. Protocol related variable:
vSS!ContentError
channel A
0
vSS!ContentError
= 0
1
vSS!ContentError
= 1
BVA
Boundary Violation on Channel A. Protocol related variable:
vSS!BViolation
channel A
0
vSS!BViolation
= 0
1
vSS!BViolation
= 1
TCA
Transmission Conflict on Channel A. Protocol related variable:
vSS!TxConflict
channel A
0
vSS!TxConflict
= 0
1
vSS!TxConflict
= 1
Base + 0x0078 (SSCR0)
Base + 0x007A (SSCR1)
Base + 0x007C (SSCR2)
Base + 0x007E (SSCR3)
Additional Reset: RUN Command
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
SLOTSTATUSCNT
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 30-47. Slow Status Counter Registers (SSCR0–SSCR3)
Table 30-56. SSR0–SSR7 Field Descriptions (continued)
Field
Description