NEC 78K0S/KA1+ Preliminary User's Manual page 259

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DEFOSTS1 DEFOSTS0
0 0 2
0 1 2
1 0 2
1 1 2
Caution The setting of this option is valid only when the crystal/ceramic oscillation clock is selected
as the system clock source. No wait time elapses if the high-speed Ring-OSC or external
clock input is selected as the system clock source.
Remarks 1. ( ): f = 10 MHz
X
2. For the oscillation stabilization time of the resonator, refer to the characteristics of the resonator
to be used.
CHAPTER 17 OPTION BYTE
Figure 17-2. Format of Option Byte (2/2)
Oscillation stabilization time on power application or reset input
µ
10
/fx (102.4 s)
µ
12
/fx (409.6 s)
15
/fx (3.27 ms)
17
/fx (13.1 ms)
Preliminary User's Manual U16898EJ1V0UD
259