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EM78P458AP Datasheet(PDF) 37 Page - ELAN Microelectronics Corp

Part # EM78P458AP
Description  8-BIT MICRO-CONTROLLER
PDF  76 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P458AP Datasheet(HTML) 37 Page - ELAN Microelectronics Corp

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EM78P458/459
OTP ROM
MOV A, @0BXXXXXXX1
; To define P60 as an input pin, and the others are dependent
IOW PORT6
; on applications
MOV A, @0B01000101
; To enable the OP1, and set the gain as 32
IOW GCON
BS ADCONR, ADPD
; To disable the power-down mode of ADC
ENI
; Enable the interrupt function
BS ADCONR, ADRUN
; Start to run the ADC
; If the interrupt function is employed, the following three lines may be ignored
POLLING:
JBC ADCONR, ADRUN
; To check the ADRUN bit continuously;
JMP POLLING
; ADRUN bit will be reset as the AD conversion is completed
(User program)
:
:
:
4.8 Dual Sets of PWM ( Pulse Width Modulation )
1. Overview
In PWM mode, both PWM1 and PWM2 pins produce up to a 10-bit resolution PWM output (see. Fig.
13 for the functional block diagram). A PWM output has a period and a duty cycle, and it keeps the
output in high. The baud rate of the PWM is the inverse of the period. Fig. 14 depicts the relationships
between a period and a duty cycle.
This specification is subject to change without prior notice.
06.25.2004 (V1.4)
37



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