PIC16F688-I/SL Microchip Technology Inc., PIC16F688-I/SL Datasheet - Page 72

• Manufacturer Part Number: PIC16F688-I/SL
• Description: 14 PIN, 7 KB FLASH, 256 RAM, 12 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F688-I/SL

• A/d Inputs: 8-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 12
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 14-pin SOIC-N
• Programmable Memory: 7K Bytes
• Ram Size: 256 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F688
EXAMPLE 8-1:
DS41203C-page 70
;This code block configures the ADC
;for polling, Vdd reference, Frc clock
;and AN0 input.
;
;Conversion start & polling for completion
; are included.
;
BANKSEL ADCON1
MOVLW
MOVWF
BANKSEL TRISA
BSF
BANKSEL ANSEL
BSF
BANKSEL ADCON0
MOVLW
MOVWF
CALL
BSF
BTFSC
GOTO
BANKSEL ADRESH
MOVF
MOVWF
BANKSEL ADRESL
MOVF
MOVWF
B’01110000’ ;ADC Frc clock
ADCON1
TRISA,0
ANSEL,0
B’10000001’ ;Right justify,
ADCON0
SampleTime
ADCON0,GO
ADCON0,GO
$-1
ADRESH,W
RESULTHI
ADRESL,W
RESULTLO
A/D CONVERSION
;
;
;
;Set RA0 to input
;
;Set RA0 to analog
;
;Vdd Vref, AN0, On
;Acquisiton delay
;Start conversion
;Is conversion done?
;No, test again
;
;Read upper 2 bits
;store in GPR space
;
;Read lower 8 bits
;Store in GPR space
© 2006 Microchip Technology Inc.