ML610Q428-NNNTBZ03A7 Rohm Semiconductor, ML610Q428-NNNTBZ03A7 Datasheet - Page 233

• 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: -

16.3 Description of Operation
16.3.1
16.3.2
For each pin of Port 0, the setting of the Port 0 control registers 0 and 1 (P0CON0 and P0CON1) allows selection of
high-impedance input mode, input mode with a pull-down resistor, or input mode with a pull-up resistor.
High-impedance input mode is selected at system reset.
The pin level of Port 0 can be read by reading the Port 0 data register (P0D)
The Port 0 pins (P00 to P07) can be used for P00 to P07 interrupts (P00INT to P07INT). The P00 to P07 interrupts
are maskable and interrupt enable or disable can be selected. For details of interrupts, see Chapter 5, “Interrupts”.
The P02 pin can be used as the RXD0 input pin of UART0, or the external clock input pin for PWM2.
For the UART function and the PWM function, see Chapter 13, “UART,” and Chapter 10, “PWM,” respectively.
When an interrupt edge selected with the external interrupt control register 0, 1, or 2 (EXICON0, EXICON1, or
EXICON2) occurs at a Port 0 pin, a maskable P00 (P01, P02, P03, P04, P05, P06, or P07) interrupt (P00INT, P01INT,
P02INT, P03INT, P04INT, P05INT, P06INT, or P07INT). Figure 16-2 shows the P00 to P07 interrupt generation
timing in rising-edge interrupt mode, in falling-edge interrupt mode, and in both-edge interrupt mode without sampling
and the P00 to P07 interrupt generation timing in rising-edge interrupt mode with sampling.
External Interrupt
Interrupt Request
Interrupt request
Interrupt request
(a) When Falling-Edge Interrupt Mode without Sampling is Selected
(b) When Rising-Edge Interrupt Mode without Sampling is Selected
SYSCLK
SYSCLK
P0n pin
P0nINT
P0nINT
P0n pin
QP0n
QP0n
16 – 9
ML610Q428/ML610Q429 User’s Manual
Chapter 16 Port 0