Fujitsu MB90460 Series Hardware Manual page 273

CHAPTER 12 16-BIT RELOAD TIMER
LOOP:
;-------Interrupt program--------------------------------------------------------------------------------------------
WARI:
;
;
;
CODE
;-------Vector setting------------------------------------------------------------------------------------------------
VECT
VECT
■ Sample Program in Event Count Mode
●
Processing
• When the rising edge of the pulse input to the external event input pin is counted 10,000 times with 16-
bit reload timer/counter 0, an interrupt is generated.
• The timer operates in single-shot mode.
• External trigger input selects the rising edge.
2
• EI OS is not used.
●
Coding example
ICR09
TMCSR
TMR
TMRD
DDR1
UF
CNTE
TRG
254
MOV A,#00H
MOV A,#01H
BRA LOOP
CLRB I:UF
:
User processing
:
RETI
ENDS
CSEG ABS=0FFH
ORG 0FF84H
DSL WARI
ORG 0FFDCH
DSL START
DB 00H
ENDS
END START
EQU 0000B9H
EQU 000082H
EQU 000084H
EQU 000084H
EQU 000011H
EQU TMCSR:2
EQU TMCSR:1
EQU TMCSR:0
;Endless loop
;
;
;Clears interrupt request flag
;Returns from interrupt
;Sets vector for interrupt #30 (1EH)
;Sets reset vector
;Sets single-chip mode
;Interrupt control register for the 16-bit reload timer
;Timer control status register
;16-bit timer register
;16-bit reload register
;Port data register
;Interrupt request flag bit
;Counter operation enable bit
;Software trigger bit