751
Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
18.2.5 Overload
frame
An overload frame is transmitted under the following conditions.
•
When the receiving node has not completed the reception operation
•
If a dominant level is detected at the first two bits during intermission
•
If a dominant level is detected at the last bit (7th bit) of the end of frame or at the last bit (8th bit) of
the error delimiter/overload delimiter
Note:
The CAN is internally fast enough to process all received frames not generating overload
frames.
Figure 18-16:
Overload frame
Note:
D: Dominant = 0
R: Recessive = 1
Table 18-8:
Definition of overload frame fields
No
Name
Bit count
Definition
<1>
Overload flag
6
Outputs 6 dominant-level bits consecutively.
<2>
Overload flag from other node
0 to 6
The node that received an overload flag in the interframe
space outputs an overload flag.
<3>
Overload delimiter
8
Outputs 8 recessive-level bits consecutively.
If a dominant level is detected at the 8th bit, an overload
frame is transmitted from the next bit.
<4>
Frame
–
Output following an end of frame, error delimiter, or overload
delimiter.
<5>
Interframe space/overload
frame
–
An interframe space or overload frame starts from here.
<1>
R
D
<2>
<3>
6 bits
0 to 6 bits
8 bits
(<4>)
(<5>)
Interframe space or overload frame
Overload delimiter
Overload flag
Overload flag
Frame
Overload frame
Summary of Contents for V850E/PH2
Page 6: ...6 Preface User s Manual U16580EE3V1UD00...
Page 16: ...16 User s Manual U16580EE3V1UD00...
Page 28: ...28 User s Manual U16580EE3V1UD00...
Page 32: ...32 User s Manual U16580EE3V1UD00...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO...
Page 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 only User s Manual U16580EE3V1UD00 MEMO...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO...
Page 1052: ...1052 User s Manual U16580EE3V1UD00...
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