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Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
(2)
Remote frame
A remote frame is composed of six fields.
Figure 18-4:
Remote Frame
Notes: 1.
The data field is not transferred even if the control field’s data length code is not “0000B”.
2.
D: Dominant = 0
R: Recessive = 1
(3)
Description of fields
(a) Start of frame (SOF)
The start of frame field is located at the start of a data frame or remote frame.
Figure 18-5:
Start of frame (SOF)
Note:
D: Dominant = 0
R: Recessive = 1
•
If dominant level is detected in the bus idle state, a hard-synchronization is performed (the
current TQ is assigned to be the SYNC segment).
•
If dominant level is sampled at the sample point following such a hard-synchronization, the bit is
assigned to be a SOF. If recessive level is detected, the protocol layer returns to the bus idle
state and regards the preceding dominant pulse as a disturbance only. No error frame is
generated in such case.
R
D
Interframe space
End of frame (EOF)
ACK field
CRC field
Control field
Arbitration field
Start of frame (SOF)
Remote frame
<1>
<2>
<3>
<5>
<6>
<7>
<8>
R
D
1 bit
Start of frame
(Interframe space or bus idle)
(Arbitration field)
Содержание MuPD70F3187
Страница 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
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Страница 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Страница 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Страница 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
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