ML610Q428-NNNTBZ03A7 Rohm Semiconductor, ML610Q428-NNNTBZ03A7 Datasheet - Page 260

• Manufacturer Part Number: ML610Q428-NNNTBZ03A7
• Description: MCU 8BIT 48K FLASH 128-TQFP
• Manufacturer: Rohm Semiconductor

Specifications of ML610Q428-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: 14
• 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: -

19.3 Description of Operation
19.3.1
19.3.2
For each pin of Port 3, either output or input is selected by setting the Port 3 direction register (P3DIR).
In output mode, high-impedance output mode, P-channel open drain output mode, N-channel open drain output mode,
or CMOS output mode can be selected by setting the Port 3 control registers 0 and 1 (P3CON0 and P3CON1).
In input mode, high-impedance input mode, input mode with a pull-down resistor, or input mode with a pull-up resistor
can be selected by setting the Port 3 control registers 0 and 1 (P3CON0 and P3CON1).
At a system reset, high-impedance output mode is selected as the initial state.
In output mode, “L” or “H” level is output to each pin of Port 3 depending on the value set by the Port 3 data register
(P3D).
In input mode, the input level of each pin of Port 3 can be read from the Port 3 data register (P3D).
Secondary and tertiary functions are assigned to Port 3 as the RC-ADC (channel 0) oscillation pins (IN0, CS0, RS0,
RT0, CRT0, RCM), the PWM0 output pin (PWM0), the PWM1 output pin (PWM1) and the PWM2 output pin
(PWM2). These pins can be used in a secondary or tertiary function mode by setting the P35MD0 to P30MD0 bits and
the P35MD1 to P30MD1 bits of the Port 3 mode registers (P3MOD0, P3MOD1).
Note:
All the port 3 pins except P35/RCM are configured as pins dedicated to the RC-ADC function during A/D conversion.
Therefore, if there is any unused pin, that pin cannot be used as its primary function during A/D conversion. For the
RC-ADC, see Chapter 23, “RC Oscillation Type A/D Converter”.
Input/Output Port Functions
Secondary and Tertiary Functions
19 – 10
ML610Q428/ML610Q429 User’s Manual
Chapter 19 Port 3