upd78f0124hgba1-8et-a Renesas Electronics Corporation., upd78f0124hgba1-8et-a Datasheet - Page 206

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

9.2 Configuration of Watch Timer
9.3 Register Controlling Watch Timer
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The watch timer includes the following hardware.
The watch timer is controlled by the watch timer operation mode register (WTM).
• Watch timer operation mode register (WTM)
This register sets the watch timer count clock, enables/disables operation, prescaler interval time, and 5-bit
counter operation control.
WTM is set by a 1-bit or 8-bit memory manipulation instruction.
RESET input clears WTM to 00H.
Counter
Prescaler
Control register
Item
Table 9-3. Watch Timer Configuration
5 bits × 1
11 bits × 1
Watch timer operation mode register (WTM)
CHAPTER 9 WATCH TIMER
User’s Manual U16962EJ3V0UD
Configuration