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PIC16C770-04/SS Datasheet(PDF) 28 Page - Microchip Technology

Part # PIC16C770-04/SS
Description  18/20-Pin, 8-Bit CMOS Microcontrollers with 10/12-Bit A/D
PDF  200 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16C770-04/SS Datasheet(HTML) 28 Page - Microchip Technology

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PIC16C717/770/771
DS41120A-page 28
Advanced Information
© 1999 Microchip Technology Inc.
EXAMPLE 3-1:
INITIALIZING PORTA
BCF
STATUS, RP0
; Select Bank 0
CLRF
PORTA
; Initialize PORTA by
; clearing output
; data latches
BSF
STATUS, RP0
; Select Bank 1
MOVLW
0Fh
; Value used to
; initialize data
; direction
MOVWF
TRISA
; Set RA<3:0> as inputs
; RA<7:4> as outputs. RA<7:6>availability depends on oscillator selection.
MOVLW
03
; Set RA<1:0> as analog inputs, RA<7:2> are digital I/O
MOVWF
ANSEL
BCF
STATUS, RP0
; Return to Bank 0
FIGURE 3-1:
BLOCK DIAGRAM OF RA0/AN0, RA1/AN1/LVDIN
Data
Bus
Q
D
Q
CK
Q
D
Q
CK
QD
EN
P
N
WR
PORT
WR
TRIS
Data Latch
TRIS Mode
VSS
VDD
Schmitt
Trigger
To A/D Converter input or LVD Module input
RD
TRIS
Q
D
Q
CK
Analog Select
WR
ANSEL
RD
PORT
VDD
VSS



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