MPXM2102AS datasheet(112/670 Pages) MOTOROLA

112 / 670 page

AN1611

2–76

Motorola Sensor Device Data

www.motorola.com/semiconductors

STARTTEN

CLRX

; Start to search for ten digit

LOOP10

LDA

DECLO

; acceleration = acceleration – 10

SUB

TENLO

STA

DECLO

LDA

DECHI

SBC

TENHI

STA

DECHI

INCX

BCC

LOOP10

; if acceleration >= 10 continue the

DECX

; loop, otherwise end

LDA

DECLO

; acceleration = acceleration + 10

ADD

TENLO

STA

DECLO

LDA

DECHI

ADC

TENHI

STA

DECHI

LDA

$0300,X

; Output the last second digit

EOR

SIGN

; Display the sign

STA

PORTB

CLRX

; Start to search for the last digit

LDA

DECLO

; declo = declo – 1

TAX

LDA

$0300,X

; Output the last digit

EOR

#$01

; Add a decimal point in the display

STA

PORTA

CLI

; Enable Interrupt again !

RTS

******************************************

This subroutine provides services

for those unintended interrupts

******************************************

SWI

RTI

; Software interrupt return

IRQ

RTI

; Hardware interrupt

TIMERCAP

RTI

; Timer input capture

TIMERROV

RTI

; Timer overflow

SCI

RTI

; Serial communication Interface

; Interrupt

ORG

$3FF2

; For 68HC05B16, the vector location

FDB

SCI

; starts at 3FF2

FDB

TIMERROV

; For 68HC05B5, the address starts

FDB

TIMERCMP

; 1FF2

FDB

TIMERCAP

FDB

IRQ

FDB

SWI

FDB

RESET

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MPXM2102AS Datasheet(PDF) 112 Page - Motorola, Inc

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