PD178002_15 Datasheet, PDF (19/50 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD178002, 178003
5.4 Buzzer Output Control Circuit
Clocks with the following frequencies can be output as buzzer (BEEP) output.
• 1.5 kHz/3 kHz/6 kHz (4.5 MHz crystal resonator for system clock)
Figure 5-4. Block Diagram of Buzzer Output Control Circuit
1.5 kHz
3 kHz
6 kHz
3
BEEP/ P36
TCL27 TCL26 TCL25
Timer clock select register 2
(TCL2)
P36
output latch
Internal bus
PM36
Port mode register 3
(PM3)
Data Sheet U12628EJ3V0DS00
17