ML610Q409-NNNTBZ03A7 Rohm Semiconductor, ML610Q409-NNNTBZ03A7 Datasheet - Page 286

• Manufacturer Part Number: ML610Q409-NNNTBZ03A7
• Description: MCU 8BIT 16K FLASH 4CH 100-TQFP
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of ML610Q409-NNNTBZ03A7

• Core Processor: nX-U8/100
• Core Size: 8-Bit
• Speed: 2MHz
• Connectivity: SSP, UART/USART
• Peripherals: LCD, Melody Driver, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.25 V ~ 3.6 V
• Data Converters: A/D 2x16b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 100-TFQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

ML610Q407/ML610Q408/ML610Q409 User's Manual
Chapter 20 Melody Driver
20.3.6 Operations of Buzzer Output
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
(MD0LEN).
(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 low-speed double clock.
(6) When the M0RUN bit of the melody 0 control register (MD0CON) is set to “1”, the waveform equivalent to the
buzzer sound that is set from the MD0 pin is output.
Figure 20-4 shows the output waveform of each buzzer output mode.
Buzzer output waveform
Buzzer output waveform
Buzzer output waveform
Buzzer output waveform
MD0CON.M0RUN
MD0CON.M0RUN
MD0CON.M0RUN
MD0CON.M0RUN
T8HZ
MD0*
T8HZ
T1HZ
MD0*
T8HZ
MD0*
MD0*
Figure 20-4 Output Waveform of Each Buzzer Output Mode
(1/4) Intermittent sound 1 output waveform
(2/4) Intermittent sound 2 output waveform
(4/4) Continuous sound output waveform
(3/4) Single sound output waveform
20-12