UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 256

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

12.4 Operation of Clock Output/Buzzer Output Controller
12.4.1 Operation as clock output
12.4.2 Operation as buzzer output
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The clock pulse is output using the following procedure.
<1> Select the clock pulse output frequency using bits 0 to 3 (CCS0 to CCS3) of the clock output select register
<2> Set bit 4 (CLOE) of CKS to 1, and enable clock output.
Remark The clock output controller is designed not to output pulses with a small width during output enable/
The buzzer frequency is output using the following procedure.
<1> Select the buzzer output frequency using bits 5 and 6 (BCS0, BCS1) of the clock output select register (CKS)
<2> Set bit 7 (BZOE) of CKS to 1 to enable buzzer output.
(CKS) (clock pulse output in disabled state).
(buzzer output in disabled state).
Clock output
disable switching of the clock output. As shown in Figure 12-4, be sure to start output from the low period
of the clock (marked with * in the figure). When stopping output, do so after securing the high level of
the clock.
CLOE
CHAPTER 12 CLOCK OUTPUT/BUZZER OUTPUT CONTROLLER
Figure 12-4. Remote Control Output Application Example
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User’s Manual U14046EJ5V0UD
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