ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 293

• Manufacturer Part Number: ML610Q429-NNNTBZ03A7
• Description: MCU 8BIT 48K FLASH 128-TQFP
• Manufacturer: Rohm Semiconductor

Specifications of ML610Q429-NNNTBZ03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 4.2MHz
• Connectivity: I²C, SSP, UART/USART
• Peripherals: LCD, Melody Driver, POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 48KB (24K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.1 V ~ 3.6 V
• Data Converters: A/D 2x12b, 2x24b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

22.3.6
A buzzer sound is output in the following procedure.
(1) Select a buzzer mode by setting the BZMD bit of the melody 0 control register (MD0CON) to “1”.
(2) Select a buzzer output mode using the melody 0 tempo code register (MD0TMP).
(3) Select a duty of the High level width of the buzzer output waveform using the melody 0 tone length code register
(4) Set the buzzer output frequency in the melody 0 scale code register (MD0TON).
(5) Set bit 2 (ENMLT) of the frequency control register 1(FCON1) to “1” to enable the 2×low-speed clock.
(6) When the M0RUN bit of the melody 0 control register (MD0CON) is set to “1”, the waveform equivalent to the
Figure 22-4 shows the output waveform of each buzzer output mode.
(MD0LEN).
buzzer sound that is set from the MD0 pin is output.
Operations of Buzzer Output
Buzzer output waveform
Buzzer output waveform
Buzzer output waveform
Buzzer output waveform
MD0CON.M0RUN
MD0CON.M0RUN
MD0CON.M0RUN
MD0CON.M0RUN
Figure 22-4 Output Waveform of Each Buzzer Output Mode
T8HZ
MD0*
T8HZ
T1HZ
MD0*
T8HZ
MD0*
MD0*
(1/4) Output waveform of intermittent sound 1
(2/4) Output waveform of intermittent sound 2
(4/4) Output waveform of continuous sound
(3/4) Output waveform of single sound
22 – 12
ML610Q428/ML610Q429 User’s Manual
Chapter 22 Melody Driver