upd78f0114m6gb-8es Renesas Electronics Corporation., upd78f0114m6gb-8es Datasheet - Page 217
upd78f0114m6gb-8es
Manufacturer Part Number
upd78f0114m6gb-8es
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0114M6GB-8ES.pdf
(534 pages)
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Cautions 1. If data is written to WDTM, a wait cycle is generated. Do not write data to WDTM
Remarks 1. f
2. Set bits 7, 6, and 5 to 0, 1, and 1, respectively (when “Ring-OSC cannot be stopped”
3. After reset is released, WDTM can be written only once by an 8-bit memory
4. WDTM cannot be set by a 1-bit memory manipulation instruction.
5. If “Ring-OSC can be stopped by software” is selected by the mask option and the
2. f
3. ×: Don’t care
4. Figures in parentheses apply to operation at f
grade products), f
R
XP
when the CPU is operating on the subsystem clock and the X1 input clock is
stopped. For details, see CHAPTER 31 CAUTIONS FOR WAIT.
is selected by a mask option, other values are ignored).
manipulation instruction. If writing is attempted a second time, an internal reset
signal is generated. If the source clock to the watchdog timer is stopped, however,
an internal reset signal is generated when the source clock to the watchdog timer
resumes operation.
watchdog timer is stopped by setting WDCS4 to 1, the watchdog timer does not
resume operation even if WDCS4 is cleared to 0. In addition, the internal reset signal
is not generated.
: Ring-OSC clock oscillation frequency
: X1 input clock oscillation frequency
CHAPTER 10 WATCHDOG TIMER
XP
= 10 MHz.
User’s Manual U16227EJ3V0UD
R
= 480 kHz (MAX.) (standard products, (A)
217
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