Table of Contents
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Chapter 4
(3)
Access
Address
Initial Value
Table 4-6
Bit position
Bit name
0
MSTS
Remarks
170
OSTC - Oscillation stabilization timer status register
The 8-bit OSTC register indicates the status of the main oscillator.
This register is read-only.
FFFF F6C2
.
H
00
. The register is initialized by any reset.
H
7
6
5
0
0
0
R
R
R
OSTC register contents
Oscillation stabilization status of MainOSC:
0: MainOSC stopped or waiting for oscillation stabilization.
1: MainOSC oscillation stabilization ended.
1.
The OSTC register does not monitor the main clock status but indicates
the process status, based on the oscillation stabilization time specified by
the OSTS register.
2.
When the main clock oscillator is stopped by the software (PCC.MCK bit =
1) or entered into STOP mode, the OSTC register is set to 00H. If it is
stopped due to abnormal oscillation, the status is maintained.
User's Manual U18743EE1V2UM00
4
3
2
0
0
0
R
R
R
Function
Clock Generator
1
0
0
MSTS
R
R
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