upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 346

• Manufacturer Part Number: upd78f0114hgb-8es-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

346
(b) Release by RESET input
Internal oscillation clock
Standby release signal
Remarks 1. The broken lines indicate the case when the interrupt request that has released the standby
When the RESET signal is input, STOP mode is released and a reset operation is performed after the
oscillation stabilization time has elapsed.
Note Waiting for the oscillation stabilization time is not required when the external RC oscillation clock is
RESET signal
Status of CPU
system clock
High-speed
Status of CPU
(High-speed system clock)
selected as the high-speed system clock by the option byte. Therefore, the CPU clock can be
switched without reading the OSTC value.
2. f
Figure 17-6. STOP Mode Release by Interrupt Request Generation (2/2)
mode is acknowledged.
R
: Internal oscillation clock oscillation frequency
Operating mode
(1) When high-speed system clock is used as CPU clock
(2) When internal oscillation clock is used as CPU clock
(Internal oscillation
Figure 17-7. STOP Mode Release by RESET Input (1/2)
Oscillates
Operating mode
clock)
instruction
STOP
CHAPTER 17 STANDBY FUNCTION
instruction
STOP
Oscillation stopped
STOP mode
User’s Manual U16961EJ4V0UD
STOP mode
Interrupt
request
Oscillation stabilization time (2
Oscillation
stopped
period
Oscillates
Reset
Operation
stopped
(17/f
Operation
stopped
(17/f
R
)
R
)
Oscillates
(Internal oscillation clock)
(internal oscillation clock)
Operating mode
Operating mode
11
/f
XP
to 2
16
/f
XP
)
Note