PIC16F873-04I/SO Microchip Technology, PIC16F873-04I/SO Datasheet - Page 199

• Manufacturer Part Number: PIC16F873-04I/SO
• Description: IC MCU FLASH 4KX14 EE 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F873-04I/SO

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 4MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 22
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Controller Family/series: PIC16F
• No. Of I/o's: 22
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 192Byte
• Cpu Speed: 4MHz
• No. Of Timers: 3
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 4 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI/USART
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL309-1073 - ADAPTER 28-SOIC TO 28-SOIC309-1024 - ADAPTER 28-SOIC TO 28-DIP309-1023 - ADAPTER 28-SOIC TO 28-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

13.8
1997 Microchip Technology Inc.
Initialization
Example 13-1
caler and postscaler.
Example 13-1:
;
; The Timer2 interrupt is disabled, do polling on the overflow bit
;
T2_OVFL_WAIT
;
; Timer has overflowed
;
CLRF
CLRF
CLRF
BSF
CLRF
BCF
CLRF
MOVLW
MOVWF
BSF
BTFSS
GOTO
BCF
shows how to initialize the Timer2 module, including specifying the Timer2 pres-
T2CON
TMR2
INTCON
STATUS, RP0
PIE1
STATUS, RP0
PIR1
0x72
T2CON
T2CON, TMR2ON ; Timer2 starts to increment
PIR1, TMR2IF
T2_OVFL_WAIT
PIR1, TMR2IF
Timer2 Initialization
; Stop Timer2, Prescaler = 1:1,
;
; Clear Timer2 register
; Disable interrupts
; Bank1
; Disable peripheral interrupts
; Bank0
; Clear peripheral interrupts Flags
; Postscaler = 1:15, Prescaler = 1:16
;
; Has TMR2 interrupt occurred?
; NO, continue loop
; YES, clear flag and continue.
Postscaler = 1:1
Timer2 is off
Section 13. Timer2
DS31013A-page 13-5
13