PIC16F870T-I/SS Microchip Technology, PIC16F870T-I/SS Datasheet - Page 190
![IC MCU FLASH 2KX14 EE 28SSOP](/photos/6/81/68119/150-28-ssop_sml.jpg)
PIC16F870T-I/SS
Manufacturer Part Number
PIC16F870T-I/SS
Description
IC MCU FLASH 2KX14 EE 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F870-ISO.pdf
(172 pages)
4.PIC16F870-ISO.pdf
(6 pages)
Specifications of PIC16F870T-I/SS
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
128 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-SSOP
For Use With
I3-DB16F871 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F870-ISO PDF datasheet #3
- PIC16F870-ISO PDF datasheet #4
- Current page: 190 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
12.11
DS31012A-page 12-10
Initialization
Since Timer1 has a software programmable clock source, there are three examples to show the
initialization of each mode.
Example 12-5
initialization of the external oscillator mode.
Example 12-4:
Example 12-5:
;
; The Timer1 interrupt is disabled, do polling on the overflow bit
;
T1_OVFL_WAIT
;
; Timer has overflowed
;
;
; The Timer1 interrupt is disabled, do polling on the overflow bit
;
T1_OVFL_WAIT
;
; Timer has overflowed
;
CLRF
CLRF
CLRF
CLRF
BSF
CLRF
BCF
CLRF
MOVLW
MOVWF
BSF
BTFSS
GOTO
BCF
CLRF
CLRF
CLRF
CLRF
BSF
CLRF
BCF
CLRF
MOVLW
MOVWF
BSF
BTFSS
GOTO
BCF
T1CON
TMR1H
TMR1L
INTCON
STATUS, RP0
PIE1
STATUS, RP0
PIR1
0x30
T1CON
T1CON, TMR1ON ; Timer1 starts to increment
PIR1, TMR1IF
T1_OVFL_WAIT
PIR1, TMR1IF
T1CON
TMR1H
TMR1L
INTCON
STATUS, RP0
PIE1
STATUS, RP0
PIR1
0x32
T1CON
T1CON, TMR1ON ; Timer1 starts to increment
PIR1, TMR1IF
T1_OVFL_WAIT
PIR1, TMR1IF
shows the initialization for the external clock source, and
Timer1 Initialization (Internal Clock Source)
Timer1 Initialization (External Clock Source)
Example 12-4
; Stop Timer1, Internal Clock Source,
;
; Clear Timer1 High byte register
; Clear Timer1 Low byte register
; Disable interrupts
; Bank1
; Disable peripheral interrupts
; Bank0
; Clear peripheral interrupts Flags
; Internal Clock source with 1:8 prescaler
;
; Stop Timer1, Internal Clock Source,
;
; Clear Timer1 High byte register
; Clear Timer1 Low byte register
; Disable interrupts
; Bank1
; Disable peripheral interrupts
; Bank0
; Clear peripheral interrupts Flags
; External Clock source with 1:8 prescaler
;
;
T1 oscillator disabled, prescaler = 1:1
Timer1 is stopped and T1 osc is disabled
T1 oscillator disabled, prescaler = 1:1
Clock source is synchronized to device
Timer1 is stopped and T1 osc is disabled
shows the initialization for the internal clock source,
1997 Microchip Technology Inc.
Example 12-6
shows the
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