ML610Q429-NNNTBZ03A7 Rohm Semiconductor, ML610Q429-NNNTBZ03A7 Datasheet - Page 82

• 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: -

5.3.4
Notes are different in programming depending on whether a subroutine is called or not by the program in executing an
interrupt routine, whether multiple interrupts are enabled or disabled, and whether such interrupts are maskable or
non-maskable.
State A: Maskable interrupt is being processed
A-1: When a subroutine is not called by the program in executing an interrupt routine
Example of description: State A-1-1
Intrpt_A-1-1;
A-1-1: When multiple interrupts are disabled
A-1-2: When multiple interrupts are enabled
DI
RTI
:
:
:
• Processing immediately after the start of interrupt routine execution
• Processing at the end of interrupt routine execution
• Processing immediately after the start of interrupt routine execution
• Processing at the end of interrupt routine execution
No specific notes.
Specify the RTI instruction to return the contents of the ELR register to the PC and those of the EPSW register
to PSW.
Specify “PUSH ELR, EPSW” to save the interrupt return address and the PSW status in the stack.
Specify “POP PC, PSW” instead of the RTI instruction to return the contents of the stack to PC and PSW.
Notes on Interrupt Routine
; A-1-1 state
; Disable interrupt
; Return PC from ELR
; Return PSW form EPSW
; End
5 – 23
Example of description: State A-1-2
Intrpt_A-1-2;
PUSH ELR, EPSW
EI
POP PC, PSW
:
:
:
:
:
ML610Q428/ML610Q429 User’s Manual
Chapter 5 Interrupts (INTs)
; Start
; Save ELR and EPSW at the
; Enable interrupt
; Return PC from the stack
; Return PSW from the stack
; End
beginning