PIC16F872-E/SS Microchip Technology, PIC16F872-E/SS Datasheet - Page 357

• Manufacturer Part Number: PIC16F872-E/SS
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SSOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F872-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI
• 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 ~ 125°C
• Package / Case: 28-SSOP
• Package: 28SSOP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 20 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 22
• Interface Type: I2C/SPI
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.7
1997 Microchip Technology Inc.
Initialization
Example 18-2
Example 18-3
load into the SPBRG register is dependent on the desired baud rate and the device frequency.
Example 18-2:
Example 18-3:
BSF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
BSF
BCF
MOVLW
MOVWF
BSF
MOVLW
MOVWF
MOVLW
MOVWF
BSF
BSF
BCF
MOVLW
MOVWF
STATUS,RP0
<baudrate>
SPBRG
0x40
TXSTA
PIE1,TXIE
PIE1,RCIE
STATUS,RP0
0x90
RCSTA
STATUS,RP0
<baudrate>
SPBRG
0xB0
TXSTA
PIE1,TXIE
PIE1,RCIE
STATUS,RP0
0x90
RCSTA
is for the synchronous mode. In both examples the data is 8-bits, and the value to
is an initialization routine for asynchronous Transmitter/Receiver mode.
Asynchronous Transmitter/Receiver
Synchronous Transmitter/Receiver
; Go to Bank1
; Set Baud rate
; 8-bit transmit, transmitter enabled,
; asynchronous mode, low speed mode
; Enable transmit interrupts
; Enable receive interrupts
; Go to Bank 0
; 8-bit receive, receiver enabled,
; serial port enabled
; Go to Bank 1
; Set Baud Rate
; Synchronous Master,8-bit transmit,
; transmitter enabled, low speed mode
; Enable transmit interrupts
; Enable receive interrupts
; Go to Bank 0
; 8-bit receive, receiver enabled,
; continuous receive, serial port enabled
Section 18. USART
DS31018A-page 18-21
18