EM78P341N/342N/343N
8-Bit Microprocessor with OTP ROM
CLRRE:
MOV A,RE
AND A, @0BXX0XXXXX ; To clear the ADIF bit, “X” by application
MOV RE,A
BS ADCON, ADRUN
; To start to execute the next AD conversion
if necessary
RETI
INITIAL:
MOV A,@0B00000001
MOV AISR,A
; To define P50 as an analog input
MOV A,@0B00001000
; To select P50 as an analog input channel, and
AD power on
MOV ADCON,A
; To define P50 as an input pin and set clock
rate at fosc/16
En_ADC:
MOV A, @0BXXXXXXX1 ; To define P50 as an input pin, and the others
IOW PORT5 ; are dependent on applications
MOV A, @0BXXXX1XXX ; Enable the ADWE wake-up function of ADC, “X”
by application
MOV RE,A
MOV A, @0BXXXX1XXX ; Enable the ADIE interrupt function of ADC,
“X” by application
IOW C_INT
ENI
; Enable the interrupt function
; Start to run the ADC
BS ADCON, ADRUN
; If the interrupt function is employed, the following three lines
may be ignored
;If Sleep:
SLEP
;
;(User program section)
;
or
;If Polling:
POLLING:
JBC ADCON, ADRUN
JMP POLLING
; To check the ADRUN bit continuously;
; ADRUN bit will be reset as the AD conversion
is completed
;
;(User program section)
;
Product Specification (V1.0) 12.01.2006
(This specification is subject to change without further notice)
• 59
ELAN [ ELAN MICROELECTRONICS CORP ]
