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L9803 데이터시트(PDF) 77 Page - STMicroelectronics

부품명 L9803
상세설명  Super smart power motor driver with 8-Bit MCU, RAM, EEPROM, ADC, WDG, Timers, PWM and H-bridge driver
PDF  126 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9803 데이터시트(HTML) 77 Page - STMicroelectronics

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L9803
On-Chip Peripherals
77/126
Figure 38.
CAN Frames
Modes of Operation
The CAN Core unit assumes one of the seven states described below:
●
STANDBY. Standby mode is entered either on a chip reset or on resetting the RUN bit
in the Control/Status Register (CSR). Any on-going transmission or reception operation
is not interrupted and completes normally before the Bit Time Logic and the clock
prescaler are turned off for minimum power consumption. This state is signalled by the
Data Field
8 * N
Control Field
6
Arbitration Field
12
CRC Field
16
Ack Field
7
ID
DLC
CRC
Data Frame
44 + 8 * N
Arbitration Field
12
ID
DLC
Remote Frame
44
CRC Field
16
7
CRC
Control Field
6
Overload Flag
6
Overload Delimiter
8
Overload Frame
Error Flag
6
Error Delimiter
8
Error Frame
Flag Echo
≤ 6
Bus Idle
Inter-Frame Space
Suspend
8
Intermission
3
Transmission
2
2
Inter-Frame Space
or Overload Frame
Inter-Frame Space
Inter-Frame Space
or Overload Frame
Inter-Frame Space
Inter-Frame Space
or Overload Frame
Data Frame or
Remote Frame
Notes:
• 0
<= N
<= 8
• SOF = Start Of Frame
• ID = Identifier
• RTR = Remote Transmission Request
• IDE = Identifier Extension Bit
• r0 = Reserved Bit
• DLC = Data Length Code
• CRC = Cyclic Redundancy Code
• Error flag: 6 dominant bits if node is error
active else 6 recessive bits.
• Suspend transmission: applies to error
passive nodes only.
• EOF = End of Frame
• ACK = Acknowledge bit
Data Frame or
Remote Frame
Any Frame
Inter-Frame Space
or Error Frame
End Of Frame or
Error Delimiter or
Overload Delimiter
Ack Field
End Of Frame
EOF



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