CHAPTER 11 BUZZER OUTPUT CONTROLLER
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User’s Manual U11302EJ4V0UM
11.3 Buzzer Output Function Control Registers
The following two registers are used to control the buzzer output function.
•
Timer clock select register 2 (TCL2)
•
Port mode register 3 (PM3)
(1) Timer clock select register 2 (TCL2)
This register sets the buzzer output frequency.
TCL2 is set with an 8-bit memory manipulation instruction.
RESET input sets TCL2 to 00H.
Remark
Besides setting the buzzer output frequency, TCL2 sets the watch timer count clock and the
watchdog timer count clock.
