Renesas RL78/G1P Hardware User Manual page 626

RL78/G1P
(2) Timing diagram when the interrupt request signal is generated in the SNOOZE mode
Figure 16-7. When the Interrupt Request Signal is Generated in the SNOOZE Mode
Standby release
Note 1
signal
Normal operation
(high-speed
on-chip
oscillator clock)
Status of CPU
High-speed
Oscillates
on-chip oscillator
clock
Notes 1. For details of the standby release signal, see Figure 15-1.
2. Transition time from STOP mode to SNOOZE mode
3. Transition time from SNOOZE mode to normal operation
4. Enable the SNOOZE mode (AWC = 1 or SWC = 1) immediately before switching to the STOP mode.
5. Be sure to release the SNOOZE mode (AWC = 0 or SWC = 0) immediately after return to the normal
operation.
(3) Timing diagram when the interrupt request signal is not generated in the SNOOZE mode
Figure 16-8. When the Interrupt Request Signal is not Generated in the SNOOZE Mode
Standby release
Note 1
signal
Normal operation
(high-speed
on-chip
oscillator clock)
Status of CPU
Oscillates
High-speed
on-chip oscillator
clock
Notes 1. For details of the standby release signal, see Figure 15-1.
2. Transition time from STOP mode to SNOOZE mode
3. Enable the SNOOZE mode (AWC = 1 or SWC = 1) immediately before switching to the STOP mode.
Remark For details of the SNOOZE mode function, see CHAPTER 9 A/D CONVERTER and CHAPTER 11 SERIAL
ARRAY UNIT.
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
STOP Trigger
instruction detection
Note 4
(A/D conversion, UART, CSI)
STOP mode Note 2
Oscillation
stopped
Wait for oscillation accuracy stabilization
STOP
Trigger
instruction
detection
Note 3
STOP mode Note 2
Oscillation
stopped
Wait for oscillation accuracy stabilization
CHAPTER 16 STANDBY FUNCTION
Interrupt request
SNOOZE mode
Note 3
Oscillates
SNOOZE mode
(A/D conversion,
UART)
(Waiting for a trigger to switch to the SNOOZE mode)
Oscillates
Note 5
Normal operation
(high-speed on-chip oscillator clock)
STOP mode
Oscillation stopped
H
L
L
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