RX63N_15 Datasheet, PDF (142/210 Pages) Renesas Technology Corp – Renesas MCUs

RX63N Group, RX631 Group
5. Electrical Characteristics
Note 1.
Note 2.
Note 3.
Note 4.
This is the time until the clock is used after setting P36 and P37 as inputs, and then clearing the main clock oscillator stop bit
(MOSCCR.MOSTP) to 0 (selecting operation).
This is the time until the frequency of oscillation by the HOCO (fHOCO) reaches the range for guaranteed operation after
release from the reset state.
When using a main clock, ask the manufacturer of the oscillator to evaluate its oscillation. Refer to the results of evaluation
provided by the manufacturer for the oscillation stabilization time.
The number of cycles n selected by the value of the MOSCWTCR.MSTS[4:0] bits determines the main-clock oscillation
stabilization waiting time in accord with the formula below.
n +16384
t_MAINOSCWT = t_MAINOSC +
f_MAIN
Note 5. The number of cycles n selected by the value of the PLLWTCR.PSTS[4:0] bits determines the PLL-clock oscillation stabilization
waiting time in accord with the formula below.
n +131072
t_PLLWT1 = t_PLL1 +
f_PLL
n +131072
n +131072
t_PLLWT2 = t_PLL2 +
f_PLL
= tMAINOSC + tPLL1 +
f_PLL
R01DS0098EJ0180 Rev.1.80
May 13, 2014
Page 142 of 208