PXS20RM Datasheet, PDF (772/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

FlexRay Communication Controller
Field
SUA
SEA
CEA
BVA
TCA
Table 26-56. FR_SSR0–FR_SSR7 Field Descriptions (continued)
Description
Startup Frame Indicator Channel A — protocol related variable: vRF!Header!SuFIndicator channel
A
0 vRF!Header!SuFIndicator = 0
1 vRF!Header!SuFIndicator = 1
Syntax Error on Channel A — protocol related variable: vSS!SyntaxError channel A
0 vSS!SyntaxError = 0
1 vSS!SyntaxError = 1
Content Error on Channel A — protocol related variable: vSS!ContentError channel A
0 vSS!ContentError = 0
1 vSS!ContentError = 1
Boundary Violation on Channel A — protocol related variable: vSS!BViolation channel A
0 vSS!BViolation = 0
1 vSS!BViolation = 1
Transmission Conflict on Channel A — protocol related variable: vSS!TxConflict channel A
0 vSS!TxConflict = 0
1 vSS!TxConflict = 1
26.5.2.49 Slot Status Counter Registers (FR_SSCR0–FR_SSCR3)
Base + 0x0078 (FR_SSCR0)
Base + 0x007A (FR_SSCR1)
Base + 0x007C (FR_SSCR2)
Base + 0x007E (FR_SSCR3)
Additional Reset: RUN Command
0
R
W
Rese
t
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SLOTSTATUSCNT
000000000000000
Figure 26-49. Slot Status Counter Registers (FR_SSCR0–FR_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 FR_SSCCRn, which can be programmed by using the Slot
Status Counter Condition Register (FR_SSCCR). For more details, see Section 26.6.18.4, Slot Status
Counter Registers.
NOTE
If the counter has reached its maximum value 0xFFFF and is in the
multicycle mode, i.e. FR_SSCCRn[MCY] = 1, the counter is not reset to
0x0000. The application can reset the counter by clearing the
FR_SSCCRn[MCY] bit and waiting for the next cycle start, when the CC
clears the counter. Subsequently, the counter can be set into the multicycle
mode again.
26-60
PXS20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor