115
CHAPTER 6 CLOCK SUPERVISOR
6.4
Operating Mode of Clock Supervisor
This section explains all the operating modes of the Clock Supervisor.
■
Operating Mode in Initialized State
The CR oscillation circuit, the main clock supervisor and the sub-clock supervisor are enabled before the
clock supervisor control register (CSVCR) is set by the user program.
•
After power-on reset or reset of the low voltage detection, the CR oscillation circuit is enabled with "T"
suffix product. After power-on reset or external reset, the CR oscillation circuit is enabled without "T"
suffix product.
•
If the main clock goes off after a lapse of the oscillation stability waiting time (2
11
/HCLK), the main
clock monitor function will be immediately enabled to cause reset to occur.
•
If the main clock goes off before a lapse of the oscillation stability waiting time after power-on reset,
the main clock monitor function will cause reset after a lapse of the 2
12
cycle of CR oscillation clock
(approximately 41 ms for the CR oscillation of 100 kHz).
•
If the main clock goes off during the period of power-on reset, the device will retain the reset state.
•
After it passes of 2
18
cycles of the CR oscillation clock (For about 2.6 s:CR oscillation 100 kHz), the
sub-clock supervisor is valid.
•
When the main clock is stopped on the main clock supervisor enable state, the main clock is replaced
with the CR oscillation clock, MM bit is set to one, and the reset is generated.
•
When the sub clock is stopped on the sub clock mode, the sub clock is replaced with the CR oscillation
two dividing frequency clock, SM bit is set to one, and the reset is generated. When the sub clock is
stopped on the main clock mode, the sub clock is replaced with the CR oscillation two dividing
frequency clock, SM bit is set to one. However, the reset is not generated at the sub-clock mode
transition because the initial value of SRST bit is "0".
■
Prohibition Setting of CR Oscillation Circuit and Clock Supervisor
In the following settings, it is assumptions that the CR oscillation circuit, the main clock supervisor, and the
sub-clock supervisor are operating.
•
MSVE(CSVCR:bit3) is set to 0 and the main clock supervisor is set disable.
•
SSVE(CSVCR:bit2) is set to 0 and the sub clock supervisor is set disable.
•
The RCE bit (bit4 of CSVCR) is set to 0 and the CR oscillation circuit is set disable. Please set it after
checking that the main clock and the sub-clock supervisor are disabled, and both SM and MM (bit4 of
CSVCR) are 0. Do not set RCE to 0 when either SM or MM is one.
■
Reoperating Setting of CR Oscillation Circuit and Clock Supervisor
In the following settings, it is assumptions that the CR oscillation circuit, the main clock supervisor, and the
sub-clock supervisor are stopped.
•
RCE(CSVCR:bit4) is set to 1 and the CR oscillation circuit is set enable.
•
MSVE(CSVCR:bit3) is set to 1 and the main clock supervisor is set enable. Please note the
programming of software to do after 10
µ
s or more has passed since the CR oscillation circuit was set
enable.
Содержание F2MCTM-16LX
Страница 2: ......
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 ...
Страница 682: ......