UPD784938 Datasheet, PDF (109/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 4 CLOCK GENERATOR
4.2.2 Oscillation stabilization time specification register (OSTS)
OSTS is a register used to select the oscillation stabilization time.
OSTS can be written to only by an 8-bit transfer instruction.
RESET input clears OSTS to 00H.
The format of OSTS is shown in Figure 4-4.
Figure 4-4. Oscillation Stabilization Time Specification Register (OSTS) Format
7
6
5
4
3
2
1
0 Address After reset R/W
OSTS 0
0
0
0
0 OSTS2 OSTS1 OSTS0 0FFCFH
00H
R/W
Oscillation stabilization time selection
(see Figure 25-4 for details)
Caution When using the regulator (refer to CHAPTER 5 REGULATOR), set a value of at least 10.4 ms, taking in
consideration the regulator output stabilization time.
Preliminary User’s Manual U13987EJ1V0UM00
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