ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 306

• 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: -

23.3.2
• Counter A reference mode (RADMOD RADI = “0”)
• Counter B reference mode (RADMOD RADI = “1”)
(1) Operation in Counter A reference mode
Figure 23-6 shows the operation timing in Counter A reference mode.
Following is an example of operation procedure in Counter A reference mode:
There are the following two modes of RC-ADC conversion operation:
In this mode, a gate time is determined by Counter A and the base clock (BSCLK), which is used as the time
reference, then the RC oscillator clock (RCCLK) is counted by Counter B within the gate time to make the content of
Counter B an A/D conversion value.
The A/D conversion value is proportional to RC oscillation frequency.
In this mode, a gate time is determined by Counter B and the RC oscillator clock (RCCLK), and the base clock
(BSCLK), which is used as the time reference, is counted by Counter A within the gate time to make the content of
Counter A an A/D conversion value.
The /D conversion value is inversely proportional to RC oscillation frequency.
Preset to Counter A (RADCA2–0) the value obtained by subtracting the count value “nA0” from the maximum
value + 1 (1000000H). The product of the count value “nA0” and the BSCLK clock period indicates the gate
time.
Preset “000000H” to Counter B (RADCB2–0).
Set the OM3–OM0 bits of RADMOD to desired oscillation mode (see Table 23-1).
Set the RADI bit of RADMOD to “0” to specify generating of an interrupt request signal by Counter A overflow.
Set the RARUN bit of RADCON to “1” to start A/D conversion.
Counter A/Counter B Reference Modes
RS1
CS1
RT1
RI1
Figure 23-5 When RCOSC1 Is Used for Measurement with One Resistive Sensor
RT1
RS1
CS1
IN1
OM3
0
0
23 – 11
OM2
1
1
OM1
Chapter 23 RC Oscillation Type A/D Converter
0
1
OM0
ML610Q428/ML610Q429 User’s Manual
1
0
Oscillates with the reference
resistor RS1 and CS1
Oscillates with the sensor RT1
and CS1
Mode of oscillation