mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 74

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

FlexRay Module (FLEXRAYV2)
3.3.2.7
This register defines the size of the message buffer data section for the two message buffer segments in a
number of two-byte entities.
The FlexRay module provides two independent segments for the individual message buffers. All
individual message buffers within one segment have to have the same size for the message buffer data
section. This size can be different for the two message buffer segments.
3.3.2.8
This register is used to define the last individual message buffer that belongs to the first message buffer
segment and the number of the last used individual message buffer.
74
0x000C
0x000E
Reset
Reset
MBSEG2DS
MBSEG1DS
STB1EN
STB0EN
W
W
Field
Field
R
14–8
R
6–0
1
0
15
15
0
0
0
0
Strobe Port 1 Enable — This control bit defines whether the DBG1 port is enabled or disabled.
0 Strobe port DBG1 disabled
1 Strobe port DBG1 enabled
Strobe Port 0 Enable — This control bit defines whether the DBG0 port is enabled or disabled.
0 Strobe port DBG0 disabled
1 Strobe port DBG0 enabled
Message Buffer Segment 2 Data Size — The field defines the size of the message buffer data section in
two-byte entities for message buffers within the second message buffer segment.
Message Buffer Segment 1 Data Size — The field defines the size of the message buffer data section in
two-byte entities for message buffers within the first message buffer segment.
Message Buffer Data Size Register (MBDSR)
Message Buffer Segment Size and Utilization Register (MBSSUTR)
Figure 3-7. Message Buffer Segment Size and Utilization Register (MBSSUTR)
14
14
0
1
13
13
0
1
Figure 3-6. Message Buffer Data Size Register (MBDSR)
LAST_MB_SEG1
12
12
0
1
Table 3-12. STBPCR Field Descriptions (Continued)
MBSEG2DS
11
11
0
1
Table 3-13. MBDSR Field Descriptions
10
10
0
1
MFR4300 Data Sheet, Rev. 3
0
1
9
9
0
1
8
8
Description
Description
0
0
0
0
7
7
6
0
6
1
0
1
5
5
LAST_MB_UTIL
0
1
4
4
MBSEG1DS
0
1
3
3
Freescale Semiconductor
0
1
2
2
Write:
Write:
POC:config
POC:config
1
0
1
1
0
1
0
0