ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 70

• 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: -

5.2.8
• QWDT (bit 0)
• QNMI (bit 1)
Address: 0F018H
Access: R/W
Access size: 8 bits
Initial value: 00H
IRQ0 is a special function register (SFR) to request an interrupt for each interrupt source.
The watchdog timer interrupt (WDTINT) and the NMI interrupt (NMINT) are non-maskable interrupts that do not
depend on MIE. In this case, an interrupt is requested to the CPU regardless of the value of the Mask Interrupt Enable
flag (MIE).
Each IRQ0 request flag is set to “1” regardless of the MIE value when an interrupt is generated. By setting the IRQ0
request flag to “1” by software, an interrupt can be generated.
The corresponding flag of IRQ0 is set to “0” by hardware when the interrupt request is accepted by the CPU.
[Description of Bits]
Note:
When an interrupt is generated by the write instruction to the interrupt request register (IRQ0), the interrupt shift cycle
starts after the next 1 instruction is executed.
Initial value
QWDT is the request flag for the watchdog timer interrupt (WDTINT).
QNMI is the request flag for the NMI interrupt (NMINT).
IRQ0
R/W
QWDT
QNMI
0
1
0
1
Interrupt Request Register 0 (IRQ0)
No request (initial value)
Request
No request (initial value)
Request
R/W
⎯
7
0
R/W
⎯
0
6
R/W
⎯
5
0
Description
Description
R/W
⎯
5 – 11
4
0
R/W
⎯
3
0
ML610Q428/ML610Q429 User’s Manual
R/W
⎯
2
0
Chapter 5 Interrupts (INTs)
QNMI
R/W
0
1
QWDT
R/W
0
0