ML610Q409-NNNTBZ03A7 Rohm Semiconductor, ML610Q409-NNNTBZ03A7 Datasheet - Page 254

• 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

17.3 Description of Operation
17.3.1 Input/Output Port Functions
17.3.2 Secondary and Tertiary Functions
For each pin of Port 4, either output or input is selected by setting the Port 4 direction register (P4DIR).
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 4 control registers 0 and 1 (P4CON0 and P4CON1).
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 4 control registers 0 and 1 (P4CON0 and P4CON1).
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 4 depending on the value set by the Port 4 data register
(P4D).
In input mode, the input level of each pin of Port 4 can be read from the Port 4 data register (P4D).
The secondary and tertiary functions are assigned to Port 4 as the UART0 pins (RXD0, TXD0), RC-ADC (channel 1)
oscillation pins (IN1, CS1, RS1, RT1), synchronous serial port 0 pins (SIN0, SCK0, SOUT), and the PWM output pin
(PWM0). These pins can be used in a secondary or tertiary function mode by setting the P47MD0 to P40MD0 bits and
the P47MD1 to P40MD1 bits of the Port 4 mode registers (P4MOD0, P4MOD1).
Note:
The P44 to P47 pins of Port 4 are configured as pins dedicated to the RC-ADC function during A/D conversion.
Therefore, if any of them is unused, it cannot be used as the primary function (or as the port). For the RC-ADC, see
Chapter 21, “RC Oscillation Type A/D Converter”.
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ML610Q407/ML610Q408/ML610Q409 User's Manual
Chapter 17 Port 4