UPD78F0500AMC-CAB-AX Renesas Electronics America, UPD78F0500AMC-CAB-AX Datasheet - Page 408

• Manufacturer Part Number: UPD78F0500AMC-CAB-AX
• Description: MCU 8BIT 30SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2r

Specifications of UPD78F0500AMC-CAB-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2
12.4 Operations of Clock Output/Buzzer Output Controller
12.4.1 Operation as clock output
12.4.2 Operation as buzzer output
R01UH0008EJ0401 Rev.4.01
Jul 15, 2010
The clock pulse is output as the following procedure.
<1> Select the clock pulse output frequency with bits 0 to 3 (CCS0 to CCS3) of the clock output selection register
<2> Set bit 4 (CLOE) of CKS to 1 to enable clock output.
Remark
The buzzer frequency is output as the following procedure.
<1> Select the buzzer output frequency with bits 5 and 6 (BCS0, BCS1) of the clock output selection register (CKS)
<2> Set bit 7 (BZOE) of CKS to 1 to enable buzzer output.
(CKS) (clock pulse output in disabled status).
(buzzer output in disabled status).
Clock output
The clock output controller is designed not to output pulses with a small width during output enable/disable
switching of the clock output. As shown in Figure 12-6, be sure to start output from the low period of the
clock (marked with * in the figure). When stopping output, do so after the high-level period of the clock.
CLOE
Figure 12-6. Remote Control Output Application Example
*
CHAPTER 12 CLOCK OUTPUT/BUZZER OUTPUT CONTROLLER
*
408