PIC16F84A-04I/SS Microchip Technology, PIC16F84A-04I/SS Datasheet - Page 357

• Manufacturer Part Number: PIC16F84A-04I/SS
• Description: IC MCU FLASH 1KX14 EE 20SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F84A-04I/SS

• Core Size: 8-Bit
• Program Memory Size: 1.75KB (1K x 14)
• Core Processor: PIC
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Type: FLASH
• Eeprom Size: 64 x 8
• Ram Size: 68 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Controller Family/series: PIC16F
• No. Of I/o's: 13
• Eeprom Memory Size: 64Byte
• Ram Memory Size: 68Byte
• Cpu Speed: 4MHz
• No. Of Timers: 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPI3-DB16F84A - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPAC164018 - MODULE SKT PROMATEII 20SSOP
• Data Converters: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: PIC16F84A-04I/SSR; PIC16F84A-04I/SSR

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