Fujitsu MB90460 Series Hardware Manual page 584

ADCR0 EQU
ADCR1 EQU
;-------Main program------------------------------------------------------------------------------------------------------
CODE CSEG
START:
AND
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
OR
LOOP: MOV
MOV
BRA
;-------Interrupt program--------------------------------------------------------------------------------------
ED_INT1:
MOV
RETI
CODE ENDS
;-------Vector setting------------------------------------------------------------------------------------------------------
VECT CSEG
ORG
DSL
ORG
DSL
DB
VECT ENDS
END
000036H ;A/D data register
000037H ;
;Assumes that the stack pointer (SP) has already
been initialized
CCR,#0BFH ;Disables interrupts
ICR00,#00H ;Interrupt level: 0 (highest priority)
BAPL,#00H ;Sets the address to which the conversion data is
transferred and stored
BAPM,#02H ;(Uses 200H to 205H.)
BAPH,#00H ;
ISCS,#18H ;Transfers word data, adds 1 to the address, then
transfers the data from I/O to memory
IOAL,#36H ;Sets the address of the analog data register as the
IOAH,#00H ;transfer source address pointer
DCTL,#03H ;Sets the EI
DDR5,#11110001B ;Sets P51 to P53 as input
ADER,#00001110B ;Sets P51/AN1 to P53/AN3 as analog inputs
DCTH,#00H ;
ADCS0,#0BH ;Single activation. Converts AN1 to AN3
ADCS1,#0A2H ;Software activation. Begins A/D conversion.
ILM,#07H ;Sets ILM in PS to level 7
CCR,#40H ;Enables interrupts
A,#00H ;Endless loop
A,#01H
LOOP
I:ADCS1,#00H ;Stops A/D conversion. Clears and disables the
interrupt flag
;Returns from interrupt
ABS=0FFH
0FFD0H ;Sets vector for interrupt #11 (0BH)
ED_INT1
0FFDCH ;Sets reset vector
START
00H ;Sets single-chip mode
START
CHAPTER 20 8/10-BIT A/D CONVERTER
2
OS transfer count to three, which is the
same value as the conversion count
Enables interrupts
565