240CHAPTER 10 WATCH TIMER10.2 Watch Timer ConfigurationThe watch timer consists of the following hardware.Table 10-2. Watch Timer ConfigurationItem ConfigurationCounter 5 bits × 1Timer clock select register 2 (TCL2)Watch timer mode control register (TMC2)10.3 Watch Timer Control RegistersThe following two types of registers are used to control the watch timer.• Timer clock select register 2 (TCL2)• Watch timer mode control register (TMC2)(1) Timer clock select register 2 (TCL2) (Refer to Figure 10-2.)This register sets the watch timer count clock.TCL2 is set with an 8-bit memory manipulation instruction.RESET input sets TCL2 to 00H.Remark Besides setting the watch timer count clock, TCL2 sets the watchdog timer count clock and buzzeroutput frequency.Control register
