upd78f0124hgba1-8et-a Renesas Electronics Corporation., upd78f0124hgba1-8et-a Datasheet - Page 213

• Manufacturer Part Number: upd78f0124hgba1-8et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

10.2 Configuration of Watchdog Timer
Watchdog timer enable
register (WDTE)
The watchdog timer includes following hardware.
f
XP
f
R
/2
/2
4
2
Control registers
controller
Clock
input
2
Item
Watchdog timer mode
register (WDTM)
0
Figure 10-1. Block Diagram of Watchdog Timer
Table 10-3. Configuration of Watchdog Timer
counter
16-bit
1
Clear
CHAPTER 10 WATCHDOG TIMER
Watchdog timer mode register (WDTM)
Watchdog timer enable register (WDTE)
1
2
2
or
2
2
Internal bus
13
20
11
18
User’s Manual U16962EJ3V0UD
/f
/f
/f
/f
XP
XP
R
R
WDCS4
to
to
Selector
WDCS3
3
WDCS2
Configuration
WDCS1 WDCS0
controller
Output
Internal reset signal
Option byte
(to set “internal oscillator
cannot be stopped” or
“internal oscillator can be
stopped by software”)
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