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CHAPTER 21 CAN CONTROLLER
21.4.2
Function of Control Status Register (CSR)
The operating status of the register’s each bit is confirmed by following;
• Setting "0" or "1"
• Function control by writing
• Read
■
Control Status Register (CSR-lower)
Table 21.4-1 Function of Each Bit of the Control Status Register (CSR:L)
Bit Name
Function
bit7
TOE:
Transmit output
enable bit
This bit switches from a general-purpose I/O port to a transmit pin TX.
When setting to 0: Functions as general-purpose I/O port.
When setting to 1: Functions as transmit pin TX.
bit6 to
bit3
Undefined bits
When reading: Value is undefined.
When writing: No effect
bit2
NIE:
Node status
transition interrupt
output enable bit
This bit controls a node status transition interrupt generation (CSR: NT = 1) when a node
status is transferred.
When setting to 0: Interrupt generation is disabled.
When setting to 1: Interrupt generation is enabled.
bit1
Reserved:
Reserved bit
This bit is always set to 0.
When reading: The value is always 0.
bit0
HALT:
Bus operation halt
bit
This bit controls the bus halt. The halt state of the bus can be checked by reading this bit.
Writing to this bit:
0: Cancels bus halt
1: Halt bus
Reading from this bit:
0: Bus operation not in stop state
1: Bus operation in stop state
Note: After ensuring that 1 is written to this bit, write 0 to this bit if the node status is Bus
Off.
Example program:
switch ( IO_CANCT1.CSR.bit.NS )
{
case 0 : /* error active */
break;
case 1 : /* warning */
break;
case 2 : /* error passive */
break;
default : /* bus off */
for ( i=0; ( i <= 500 ) || ( IO_CANCT1.CSR.bit.HALT == 0); i++);
IO_CANCT1.CSR.word = 0x0084; /* HALT = 0 */
break;
}
*: The variable "i" is used for fail-safe.
For detail information, see "21.4.4 Notes on Using Bus Operation Stop Bit (HALT = 1)".
Содержание F2MCTM-16LX
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Страница 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Страница 4: ......
Страница 42: ...26 CHAPTER 1 OVERVIEW ...
Страница 66: ...50 CHAPTER 2 CPU MOV ILM imm8 The instruction is executed normally but the prefix affects the next instruction ...
Страница 70: ...54 CHAPTER 2 CPU ...
Страница 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Страница 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Страница 194: ...178 CHAPTER 10 I O PORTS ...
Страница 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Страница 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Страница 295: ...279 CHAPTER 15 WATCH TIMER ORG 00FFDCH Reset vector set DSL START DB 00H Set to single chip mode VECT ENDS END START ...
Страница 296: ...280 CHAPTER 15 WATCH TIMER ...
Страница 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Страница 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Страница 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Страница 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Страница 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Страница 635: ...619 APPENDIX B Instructions Table B 9 5 2 byte Instruction Map first byte 6FH MUL MULW DIVU A A A ...
Страница 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Страница 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Страница 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Страница 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Страница 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Страница 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Страница 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Страница 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Страница 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Страница 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Страница 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Страница 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Страница 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Страница 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Страница 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Страница 664: ...648 APPENDIX ...
Страница 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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