upd78f0114m6gb-8es Renesas Electronics Corporation., upd78f0114m6gb-8es Datasheet - Page 352

• Manufacturer Part Number: upd78f0114m6gb-8es
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

352
Note Set P130 to high-level output by software.
Remark When reset is effected, P130 outputs a low level. If P130 is set to output a high level before reset is
Note Set P130 to high-level output by software.
Caution A watchdog timer internal reset resets the watchdog timer.
Remark When reset is effected, P130 outputs a low level. If P130 is set to output a high level immediately after
Ring-OSC clock
Port pin (P130)
Ring-OSC clock
Watchdog timer
Port pin (P130)
X1 input clock
(except P130)
X1 input clock
(except P130)
reset signal
reset signal
CPU clock
CPU clock
overflow
Port pin
RESET
Internal
Port pin
Internal
effected, the output signal of P130 can be dummy-output as the reset signal to the CPU.
reset is effected, the output signal of P130 can be dummy-output as the reset signal to the CPU.
Normal operation
Normal operation
Figure 18-3. Timing of Reset Due to Watchdog Timer Overflow
Figure 18-2. Timing of Reset by RESET Input
CHAPTER 18 RESET FUNCTION
Delay
User’s Manual U16227EJ3V0UD
(Oscillation stop)
(Oscillation stop)
Reset period
Reset period
Delay
Operation stop
Operation stop
(17/f
(17/f
R
R
)
)
Hi-Z
Hi-Z
Normal operation
(Reset processing, Ring-OSC clock)
Normal operation
(Reset processing, Ring-OSC clock)
Note
Note