ML610Q409-NNNTBZ03A7 Rohm Semiconductor, ML610Q409-NNNTBZ03A7 Datasheet - Page 83

• 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

ML610Q407/ML610Q408/ML610Q409 User's Manual
Chapter 5 Interrupt
A-2: When a subroutine is called by the program in executing an interrupt routine
A-2-1: When multiple interrupts are disabled
A-2-2: When multiple interrupts are enabled
Example of description: Status A-2-2
Intrpt_A-2-2;
ELR,EPSW,LR
•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
PUSH
EI
:
:
:
BL Sub_1
:
POP PC,PSW,LR
Specify the “PUSH LR” instruction to save the subroutine return address in the stack.
Specify “POP LR” immediately before the RTI instruction to return from the interrupt processing after
returning the subroutine return address to LR.
Specify "PUSH LR, ELR, EPSW" to save the interrupt return address, the subroutine return address, and
the EPSW status in the stack.
Specify “POP PC, PSW, LR” instead of the RTI instruction to return the saved data of the interrupt return
address to PC, the saved data of EPSW to PSW, and the saved data of LR to LR.
; Start
; Save ELR, EPSW, and LR at
the beginning
; Enable interrupt
; Call subroutine Sub_1
; Return PC from the stack
; Return PSW from the stack
; Return LR from the stack
; End
5-22
Sub_1;
DI
RT
:
:
:
;
; Disable interrupt
; Return PC from LR
; End of subroutine