RL78/G1P
CHAPTER 16 STANDBY FUNCTION
R01UH0895EJ0100 Rev.1.00
603
Nov 29, 2019
Remarks
1.
The clock supply stop time varies depending on the temperature conditions and STOP mode period.
2.
The broken lines indicate the case when the interrupt request that has released the standby mode is
acknowledged
.
Figure 16-5. STOP Mode Release by Interrupt Request Generation (2/2)
(2) When high-speed system clock (external clock input) is used as CPU clock
Interrupt
request
STOP
instruction
Standby release signal
Note 1
Status of CPU
High-speed
system clock
(external clock input)
Oscillates
Normal operation
(high-speed
system clock)
STOP mode
Oscillation stopped
Oscillates
Normal operation
(high-speed
system clock)
Wait
Supply of the
clock is stopped
STOP mode release time
Note 2
(3) When high-speed on-chip oscillator clock is used as CPU clock
Standby release signal
Note 1
Status of CPU
High-speed on-chip
oscillator clock
Normal operation
(high-speed on-chip
oscillator clock)
Oscillates
STOP mode
Oscillation stopped
Wait for oscillation
accuracy stabilization
Interrupt
request
STOP
instruction
Normal operation
(high-speed on-chip
oscillator clock)
Oscillates
Wait
Supply of the
clock is stopped
STOP mode release time
Note 2
Notes 1.
For details of the standby release signal, see
Figure 15-1
.
2.
STOP mode release time
Supply of the clock is stopped:
18
s to 65
s
Wait:
When vectored interrupt servicing is carried out:
7 clocks
When vectored interrupt servicing is not carried out: 1 clock
Remarks
1.
The clock supply stop time varies depending on the temperature conditions and STOP mode period.
2.
The broken lines indicate the case when the interrupt request that has released the standby mode is
acknowledged
.