S128 Datasheet, PDF (54/107 Pages) Renesas Technology Corp – Microcontroller

S128
2.3.4
Wakeup Time
2. Electrical Characteristics
Table 2.23 Timing of recovery from low power modes (1)
Parameter
Symbol Min Typ
Test
Max Unit conditions
Recovery time High-speed Crystal
from Software mode
resonator
System clock source is t_SBYMC -
2
3
ms Figure 2.31
main clock oscillator
Standby mode^*1
connected to (20 MHz)^*2
main clock
oscillator
External clock System clock source is t_SBYEX -
14
25
μs
input to main main clock oscillator
clock oscillator (20 MHz)^*3
System clock source is HOCO^*4
(HOCO clock is 32 MHz)
t_SBYHO -
43
52
μs
System clock source is HOCO^*4
(HOCO clock is 48 MHz)
t_SBYHO -
44
52
μs
System clock source is HOCO^*5
(HOCO clock is 64 MHz)
t_SBYHO -
82
110 μs
System clock source is MOCO
t_SBYMO -
16
25
μs
Note 1. The division ratio of ICK and PCKx is the minimum division ratio within the allowable frequency range. The
recovery time is determined by the system clock source.
Note 2. The Main Clock Oscillator Wait Control Register (MOSCWTCR) is set to 05h.
Note 3. The Main Clock Oscillator Wait Control Register (MOSCWTCR) is set to 00h.
Note 4. The HOCO clock wait control register (HOCOWTCR) is set to 05h.
Note 5. The HOCO clock wait control register (HOCOWTCR) is set to 06h.
Table 2.24 Timing of recovery from low power modes (2)
Parameter
Test
Symbol Min Typ Max Unit conditions
Recovery time
from Software
Middle-speed Crystal
mode
resonator
System clock source is t_SBYMC -
2
3
main clock oscillator
Standby mode*¹
connected to
(12 MHz)*²
main clock
oscillator
ms Figure 2.31
External clock System clock source is t_SBYEX -
2.9 10
μs
input to main main clock oscillator
clock oscillator (12 MHz)*³
System clock source is HOCO*⁴
t_SBYHO -
38 50
μs
System clock source is MOCO (8 MHz)
t_SBYMO -
3.5 5.5
μs
Note 1. The division ratio of ICK and PCKx is the minimum division ratio within the allowable frequency range. The
recovery time is determined by the system clock source.
Note 2. The Main Clock Oscillator Wait Control Register (MOSCWTCR) is set to 05h.
Note 3. The Main Clock Oscillator Wait Control Register (MOSCWTCR) is set to 00h.
Note 4. The system clock is 12 MHz.
R01DS0309EU0100 Rev.1.00
Mar 10, 2017
Page 54 of 107