116
CHAPTER 6 CLOCK SUPERVISOR
•
The sub-clock supervisor is operated by setting SSVE(CSVCR:bit2) to 1. Please note the programming
of software to do after 10
µ
s or more has passed since the CR oscillation circuit was set enable.
■
Sub-clock Mode
The main clock supervisor automatically becomes disable at the sub-clock mode. The content of enable bit
MSVE never changes. If the main clock was lost after oscillation stability waiting time of 2
11
/HCLK
(about 0.51 ms: at external 4 MHz) or before the oscillation stability waiting time ends, the main clock
supervisor is valid after it passes of 2
12
cycles of the CR oscillation clock (about 41 ms: at CR oscillation
100 kHz) at transition from main clock mode to sub clock mode.
■
Sub-clock Mode Transition Operating When Sub-clock Has Already Stopped
The behavior that shifts to the sub-clock mode depends on the state of the SRST bit when the stop of the
sub-clock is detected by the sub-clock supervisor while the device is operating in the main clock mode.
•
When SRST is set to 0 (initial state), the reset is not generated at transition to the sub-clock mode. In
this case, the CR oscillation clock is used as a sub-clock at transition to the sub-clock mode.
•
When SRST is set to 1, the reset is generated at transition to the sub-clock mode.
■
Stop Mode
CR oscillation circuit, the main clock, and the sub-clock supervisor automatically become disable at
transition to the stop mode, when all of these functions are enable. Each enable bit of the clock supervisor
control register is not changed. Therefore, after it is released from the stop mode, each enable/disable state
of CR oscillation circuit and clock supervisor keep the state before they changes to the stop mode.
•
The CR oscillation circuit immediately becomes enable after released from the stop mode.
•
If the main clock was lost after oscillation stability waiting time of 2
11
/HCLK (about 0.51 ms: at
external 4 MHz) or before the oscillation stability waiting time ends, the main clock supervisor is
enabled after it passes of 2
12
cycles of the CR oscillation clock (about 41 ms: at CR oscillation 100
kHz).
•
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.
■
Sub-clock Mode with External Single Clock Product
In the sub-clock mode with external single clock product ("S" suffix product), the CR oscillation clock can
be used as a sub-clock.
To use this function, SCKS (bit7 of CSVCR) is set to 1 and SRST is set to 0 (initial value). This function
can not be used with the external dual clock products (no "S" suffix product).
Summary of Contents for F2MCTM-16LX
Page 2: ......
Page 3: ...FUJITSU LIMITED F2MCTM 16LX 16 BIT MICROCONTROLLER MB90360 Series HARDWARE MANUAL ...
Page 4: ......
Page 42: ...26 CHAPTER 1 OVERVIEW ...
Page 70: ...54 CHAPTER 2 CPU ...
Page 134: ...118 CHAPTER 6 CLOCK SUPERVISOR ...
Page 176: ...160 CHAPTER 8 LOW POWER CONSUMPTION MODE ...
Page 194: ...178 CHAPTER 10 I O PORTS ...
Page 252: ...236 CHAPTER 13 16 Bit I O TIMER ...
Page 282: ...266 CHAPTER 14 16 BIT RELOAD TIMER ...
Page 296: ...280 CHAPTER 15 WATCH TIMER ...
Page 386: ...370 CHAPTER 18 8 10 BIT A D CONVERTER ...
Page 426: ...410 CHAPTER 20 LIN UART Figure 20 5 2 ORE Flag Set Timing RDRF ORE Reception data ...
Page 540: ...524 CHAPTER 22 ADDRESS MATCH DETECTION FUNCTION ...
Page 568: ...552 CHAPTER 24 512K BIT FLASH MEMORY ...
Page 633: ...617 APPENDIX B Instructions Table B 9 3 Bit Operation Instruction Map first byte 6CH ...
Page 634: ...618 APPENDIX Table B 9 4 Character String Operation Instruction Map first byte 6EH ...
Page 637: ...621 APPENDIX B Instructions Table B 9 7 ea Instruction 2 first byte 71H ...
Page 638: ...622 APPENDIX Table B 9 8 ea Instruction 3 first byte 72H ...
Page 639: ...623 APPENDIX B Instructions Table B 9 9 ea Instruction 4 first byte 73H ...
Page 640: ...624 APPENDIX Table B 9 10 ea Instruction 5 first byte 74H ...
Page 641: ...625 APPENDIX B Instructions Table B 9 11 ea Instruction 6 first byte 75H ...
Page 642: ...626 APPENDIX Table B 9 12 ea Instruction 7 first byte 76H ...
Page 643: ...627 APPENDIX B Instructions Table B 9 13 ea Instruction 8 first byte 77H ...
Page 644: ...628 APPENDIX Table B 9 14 ea Instruction 9 first byte 78H ...
Page 645: ...629 APPENDIX B Instructions Table B 9 15 MOVEA RWi ea Instruction first byte 79H ...
Page 646: ...630 APPENDIX Table B 9 16 MOV Ri ea Instruction first byte 7AH ...
Page 647: ...631 APPENDIX B Instructions Table B 9 17 MOVW RWi ea Instruction first byte 7BH ...
Page 648: ...632 APPENDIX Table B 9 18 MOV Ri ea Instruction first byte 7CH ...
Page 649: ...633 APPENDIX B Instructions Table B 9 19 MOVW ea Rwi Instruction first byte 7DH ...
Page 650: ...634 APPENDIX Table B 9 20 XCH Ri ea Instruction first byte 7EH ...
Page 651: ...635 APPENDIX B Instructions Table B 9 21 XCHW RWi ea Instruction first byte 7FH ...
Page 664: ...648 APPENDIX ...
Page 665: ...649 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
Page 682: ......