mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 75

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

3.3.2.9
The application uses this register to issue
Protocol control commands are issued by writing to the POCCMD field. For more information on protocol
control commands, see
External clock correction commands are issued by writing to the EOC_AP and ERC_AP fields. For more
information on external clock correction, refer to
Freescale Semiconductor
0x0014
Reset
LAST_MB_SEG1
LAST_MB_UTIL
EOC_AP
W WME
11–10
•
•
WME
Field
R
15
Field
14–8
6–0
protocol control commands
external clock correction commands
15
0
0
Write Mode External Correction — This bit controls the write mode of the EOC_AP and ERC_AP fields.
0 Write to EOC_AP and ERC_AP fields on register write.
1 No write to EOC_AP and ERC_AP fields on register write.
External Offset Correction Application — This field is used to trigger the application of the external offset
correction value defined in the
00 do not apply external offset correction value
01 reserved
10 subtract external offset correction value
11 add external offset correction value
Protocol Operation Control Register (POCR)
14
0
0
Last Message Buffer In Segment 1 — This field defines the message buffer number of the last individual
message buffer that is assigned to the first message buffer segment. The individual message buffers in the
first segment correspond to the message buffer control registers MBCCSRn, MBCCFRn, MBFIDRn,
MBIDXRn with n <= LAST_MB_SEG1. The first message buffer segment contains LAST_MB_SEG1+1
individual message buffers.
Note: The first message buffer segment contains at least one individual message buffer.
The individual message buffers in the second message buffer segment correspond to the message buffer
control registers MBCCSRn, MBCCFRn, MBFIDRn, MBIDXRn with LAST_MB_SEG1 < n < 128.
Note: If LAST_MB_SEG1 = 127 all individual message buffers belong to the first message buffer segment
Last Message Buffer Utilized — This field defines the message buffer number of last utilized individual
message buffer. The message buffer search engine examines all individual message buffer with a message
buffer number n <= LAST_MB_UTIL.
Note: If LAST_MB_UTIL=LAST_MB_SEG1 all individual message buffers belong to the first message
13
0
0
and the second message buffer segment is empty.
buffer segment and the second message buffer segment is empty.
Section 3.6.2, “Protocol Control Command
Figure 3-8. Protocol Operation Control Register (POCR)
12
0
0
Table 3-15. POCR Field Descriptions (Sheet 1 of 2)
Table 3-14. MBSSUTR Field Descriptions
11
EOC_AP
0
0
Protocol Configuration Register 29
10
0
MFR4300 Data Sheet, Rev. 3
ERC_AP
0
9
0
Section 3.4.11, “External Clock
0
8
Description
Description
WMC
BSY
0
7
6
0
0
Execution”.
(PCR29).
0
0
5
0
0
4
FlexRay Module (FLEXRAYV2)
Synchronization”.
0
3
Write: Normal Mode
POCCMD
0
2
1
0
0
0
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