mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 70

• Manufacturer Part Number: mfr4300
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

FlexRay Module (FLEXRAYV2)
3.3.2.5
This register is used to assign the individual protocol timing related strobe signals given in
the external strobe ports. Each strobe signal can be assigned to at most one strobe port. Each write access
to registers overwrites the previously written ENB and STBPSEL values for the signal indicated by SEL.
If more than one strobe signal is assigned to one strobe port, the current values of the strobe signals are
combined with a binary OR and presented at the strobe port. If no strobe signal is assigned to a strobe port,
the strobe port carries logic 0. For more detailed and timing information refer to
Signal
70
0x0008
Reset
SCM CHB CHA
1
W WMD
WMD
Field
R
14–8
SEL
15
Support”.
15
0
0
1
1
0
0
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
disabled and assigned to one of the four strobe ports given in
Strobe Signal Control Register (STBSCR)
14
0
1
0
1
0
In single channel device mode, channel B related strobe signals are
undefined and should not be assigned to the strobe ports.
ports RXD_BG1, TXD_BG1, and TXEN1# not driven by FlexRay module
ports RXD_BG2, TXD_BG2, and TXEN1# not driven by FlexRay module
PE channel 0 idle
PE channel 1 idle
ports RXD_BG1, TXD_BG1, and TXEN1# driven by FlexRay module
ports RXD_BG2, TXD_BG2, and TXEN1# not driven by FlexRay module
PE channel 0 active
PE channel 1 idle
ports RXD_BG1, TXD_BG1, and TXEN1# driven by FlexRay module
ports RXD_BG2, TXD_BG2, and TXEN1# not driven by FlexRay module
PE channel 0 active, uses cCrcInit[B] (see
PE channel 1 idle
reserved
13
0
Table 3-10. STBSCR Field Descriptions (Sheet 1 of 2)
Figure 3-4. Strobe Signal Control Register (STBSCR)
12
0
Table 3-9. Channel Enable Mapping (Sheet 2 of 2)
SEL
11
0
10
0
MFR4300 Data Sheet, Rev. 3
16-bit write access required
0
9
NOTE
0
8
Description
Figure
Description
0
0
7
3-132)
6
0
0
Table
3-11.
0
0
5
ENB
0
4
Section 3.4.16, “Strobe
Table 3-11
0
0
3
Freescale Semiconductor
0
0
2
to be enabled or
Table 3-11
Write: Any Time
STBPSEL
1
0
0
0
to