Fujitsu MB90335 Series Hardware Manual page 129

CHAPTER 3 INTERRUPT
3.11 Program Example of Interrupt Processing
LOOP:
;----------Interrupt Program------------------------------------------------------------
WARI
CODE
----------Vector Settings-------------------------------------------------------------------
VECT
VECT
108
MOV DCTL,#64H
MOV DCTH,#00H
MOV I:ICR00,#00001000B
MOV I:ELVR,#00000001B
MOV I:EIRR,#00H
MOV I:ENIR,#01H
MOV ILM,#07H
OR CCR,#40H
:
BRA LOOP
CLRB ER0
:
user processing
:
RETI
ENDS
CSEG ABS=0FFH
ORG 0FFB4H
DSL WARI
ORG 0FFDCH
DSL START
DB 00H
ENDS
END START
FUJITSU MICROELECTRONICS LIMITED
MB90335 Series
; Sets transfer byte count (100 bytes)
2 2
; EI OS ch.0, EI OS enable, interrupt level 0 (highest)
; Make INT0 "H" level request
; Clears interrupt cause for INT0.
; Enables INT0 interrupt.
; Sets ILM in PS to level 7
; Sets I flag of CCR in PS to enable interrupts.
; Infinite loop
; Interrupt/DTP request flag clear
; confirmation of the cause of the EI
; Processes data in buffer, resetting EI
; The vector is set in interruption #18(12
; Reset vector setting
; Single-chip mode setting
2
OS completion
2
OS etc.
).
H
CM44-10137-6E