PXN20RM Datasheet, PDF (631/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

FlexRay Communication Controller (FlexRAY)
Table 26-11. STBSCR Field Descriptions
Field
WMD
SEL
ENB
STBPSEL
Description
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.
Strobe Signal Select — This control field selects one of the strobe signals given in Table 26-12 to be enabled
or disabled and assigned to one of the four strobe ports given in Table 26-12.
Strobe Signal Enable — The control bit is used to enable and to disable the strobe signal selected by
STBSSEL.
0 Strobe signal is disabled and not assigned to any strobe port.
1 Strobe signal is enabled and assigned to the strobe port selected by STBPSEL.
Strobe Port Select — This field selects the strobe port that the strobe signal selected by the SEL is assigned
to. All strobe signals that are enabled and assigned to the same strobe port are combined with a binary OR
operation.
00 assign selected signal to FR_DBG[0].
01 assign selected signal to FR_DBG[1].
10 assign selected signal to FR_DBG[2].
11 assign selected signal to FR_DBG[3].
.;
Table 26-12. Strobe Signal Mapping
SEL
dec hex
Description
0
0x0 arm
1
0x1 mt
2
0x2 cycle start
3
0x3 minislot start
4
0x4 slot start
5
0x5
6
0x6 receive data after glitch filtering
7
0x7
8
0x8 channel idle indicator
9
0x9
10 0xA syntax error detected
11 0xB
12 0xC content error detected
13 0xD
14 0xE receive FIFO almost-full interrupt flag
15
0xF
1 _{Given in PE clock cycles}
Channel
-
-
-
-
A
B
A
B
A
B
A
B
A
B
A
B
Type
value
value
pulse
pulse
pulse
value
level
pulse
level
value
Offset¹ Reference
+1
MT start
+1
MT start
0
MT start
0
MT start
0
MT start
FR_A_RX
+4
FR_B_RX
FR_A_RX
+5
FR_B_RX
FR_A_RX
+4
FR_B_RX
FR_A_RX
+4
FR_B_RX
FAFAIF
n.a.
FAFBIF
Freescale Semiconductor
PXN20 Microcontroller Reference Manual, Rev. 1
26-17