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ST7MC1 データシート(PDF) 258 Page - STMicroelectronics

部品番号 ST7MC1
部品情報  8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI
PDF  308 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7MC1 データシート(HTML) 258 Page - STMicroelectronics

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CLOCK AND TIMING CHARACTERISTICS (Cont’d)
Figure 137. PLL And Clock Detector Signal Start Up Sequence
Notes:
1. Lock does not go low without resetting the PLLEN bit.
2. Before setting the CKSEL bit by software in order to switch to the PLL clock, a period of tlock must have
elapsed.
3. 2 clock cycles are missing after CKSEL = 1
4. CKSEL bit must be set before enabling the CSS interrupt (CSSIE=1).
OSCIN
PLLEN
PLL CLOCK
LOCK
fCLK
t lock
CSSD
CSSIE
INTERRUPT
t setup
t hold
16Mhz
6 Mhz
fVCO=
OSCIN Clock
PLL clock
1)
CKSEL
2)
3)
(PLL and CKD)
4)



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