Configuration Of Watch Timer; Register Controlling Watch Timer - NEC 78K0 User Manual

9.2 Configuration of Watch Timer

The watch timer includes the following hardware.
Counter
Prescaler
Control register

9.3 Register Controlling Watch Timer

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.
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CHAPTER 9 WATCH TIMER
Table 9-3. Watch Timer Configuration
Item
5 bits × 1
11 bits × 1
Watch timer operation mode register (WTM)
User's Manual U16227EJ2V0UD
Configuration