upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 736

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

18.7 Securing Oscillation Stabilization Time
When the STOP mode is released, only the oscillation stabilization time set by the OSTS register
elapses. If the STOP mode has been released by RESET pin input, however, the reset value of the
OSTS register, 2
The timer for counting the oscillation stabilization time is shared with watchdog timer, so the oscillation
stabilization time equal to the overflow time of the watchdog timer elapses.
Figure 18-6 shows the operation performed when the STOP mode is released by an interrupt request.
Caution:
736
Oscillated waveform
Interrupt request
Software STOP
mode status
Main clock
For details of the OSTS register, refer to 6.3 (7)”Oscillation stabilization time select
register (OSTS)” on page 241.
16
/f
X
elapses.
Figure 18-6: Oscillation Stabilization Time
Chapter 18 Standby Function
User’s Manual U16702EE3V2UD00
oscillator stops
Main clock
Oscillation stabilization
time count