Fujitsu MB90460 Series Hardware Manual page 586

START:
AND
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
MOV
OR
LOOP: MOV
MOV
BRA
;-------Interrupt program-------------------------------------------------------------------------------------------------
ED_INT1:
MOV
CODE
;-------Vector setting------------------------------------------------------------------------------------------------------
VECT CSEG
ORG
DSLED_INT1
ORG
DSL
DB
VECT ENDS
ENDSTART
;Assumes that the stack pointer (SP) has already
CCR,#0BFH ;Disables interrupts
ICR10,#08H ;Interrupt level; 0 (highest priority). Enables
interrupts
BAPL,#00H ;Sets the address to which conversion data is stored
BAPM,#06H ;(Uses 600H to 60BH.)
BAPH,#00H ;
ISCS,#18H ;Transfers word data, adds 1 to the address, then
;transfers from I/O to memory
IOAL,#36H ;Sets the address of the analog data register as the
IOAH,#00H ;transfer source address pointer
DCTL,#06H ;Six transfers by EI
DDR5,#00000000B ;Sets P50 to P57 as input
ADER,#00111000B ;Sets P53/AN3 to P55/AN5 as analog input
DCTH,#00H ;
ADCS0,#9DH ;Continuous conversion mode. Converts
ADCS1,#0A8H ;Activates the 16-bit timer, starts A/D conversion,
WTMRD1,#0320H ;Sets the timer value to 800 (320H), 100µs
TMCSRH1,#00H ;Sets the clock source to 125 ns and disables
TMCSRL1,#12H ;Disables timer output, disables interrupts, and
enables reload
TMCSRL1,#13H ;Activates the 16-bit reload timer 1
ILM,#07H ;Sets ILM in PS to level 7
CCR,#40H ;Enables interrupts
A,#00H ;Endless loop
A,#01H
LOOP
I:ADCS1,#80H ;Does not stop A/D conversion. Clears and disables
the interrupt flag
RETI ;Returns from interrupt
ENDS
ABS=0FFH
0FFD0H ;Sets vector for interrupt #11 (0BH)
0FFDCH ;Sets reset vector
START
00H ;Sets single-chip mode
CHAPTER 20 8/10-BIT A/D CONVERTER
been initialized
2
OS (two transfers each for three
channels)
AN3 to AN5 CH
and enables interrupts
external trigger
567