96
CHAPTER 5 CLOCKS
Table 5.3-2 PLL and Special Configuration Control Register (PSCCR)
Bit name
Function
bit15
to
bit9
Reserved:
Reserved bit
•
These bits are reserved bits.
•
Always write "0" to these bits.
•
Reading these bits always returns "X".
bit8
CS2:
Multiplier selection
bit2
•
This bit and CS1 and CS0 bits of the Clock selection register (CKSCR) select a PLL
clock multiplier.
•
About the relationship between setting CS2, CS1 and CS0 bits and the PLL clock
multiplier selection, please see Table 5.3-1.
•
This bit is initialized to "0" by all reset causes.
•
Reading this bit always returns "X".
Note:
When the MCS or MCM bit is "0", changing the setting of this bit is not allowed.
Change this bit only after setting the MCS bit to "1" and waiting for MCM = 1 (main
clock mode).
Note:
The PSCCR register is a write-only register, so the read value is different from the write value. Therefore, instructions
that perform a read-modify-write (RMW) instructions, such as the INC/DEC instruction, cannot be used.
Содержание MB90390 Series
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Страница 17: ...xiii APPENDIX D List of Interrupt Vectors 690 INDEX 695 ...
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Страница 132: ...104 CHAPTER 5 CLOCKS ...
Страница 152: ...124 CHAPTER 6 CLOCK MODULATOR ...
Страница 210: ...182 CHAPTER 11 TIME BASE TIMER ...
Страница 218: ...190 CHAPTER 12 WATCHDOG TIMER ...
Страница 264: ...236 CHAPTER 14 16 BIT RELOAD TIMER WITH EVENT COUNT FUNCTION ...
Страница 274: ...246 CHAPTER 15 WATCH TIMER ...
Страница 306: ...278 CHAPTER 17 DTP EXTERNAL INTERRUPTS ...
Страница 338: ...310 CHAPTER 18 8 10 BIT A D CONVERTER ...
Страница 364: ...336 CHAPTER 19 UART0 UART1 ...
Страница 398: ...370 CHAPTER 20 UART2 UART3 Figure 20 5 2 ORE Set Timing Receive data RDRF ORE ...
Страница 432: ...404 CHAPTER 20 UART2 UART3 ...
Страница 482: ...454 CHAPTER 22 SERIAL I O ...
Страница 560: ...532 CHAPTER 24 STEPPING MOTOR CONTROLLER ...
Страница 582: ...554 CHAPTER 27 ROM MIRRORING MODULE ...
Страница 632: ...604 CHAPTER 29 EXAMPLES OF SERIAL PROGRAMMING CONNECTION ...
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Страница 723: ...695 INDEX The index follows on the next page This is listed in alphabetic order ...
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