PIC16F84A-04E/SO Microchip Technology, PIC16F84A-04E/SO Datasheet - Page 109

• Manufacturer Part Number: PIC16F84A-04E/SO
• Description: IC MCU CMOS 4MHZ 1K FLASH 18SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F84A-04E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• 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 ~ 125°C
• Package / Case: 18-SOIC (7.5mm Width)
• For Use With: I3-DB16F84A - BOARD DAUGHTER ICEPIC3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Connectivity: -

1997 Microchip Technology Inc.
Example 6-4: RAM Initialization
Bank0_LP
;
; Next Bank (Bank1)
; (** ONLY REQUIRED IF DEVICE HAS A BANK1 **)
;
Bank1_LP
;
; Next Bank (Bank2)
; (** ONLY REQUIRED IF DEVICE HAS A BANK2 **)
;
Bank2_LP
;
; Next Bank (Bank3)
; (** ONLY REQUIRED IF DEVICE HAS A BANK3 **)
;
Bank3_LP
:
CLRF
MOVLW
MOVWF
CLRF
INCF
BTFSS
GOTO
MOVLW
MOVWF
CLRF
INCF
BTFSS
GOTO
BSF
MOVLW
MOVWF
CLRF
INCF
BTFSS
GOTO
MOVLW
MOVWF
CLRF
INCF
BTFSS
GOTO
Section 6. Memory Organization
STATUS
0x20
FSR
INDF0
FSR
FSR, 7
Bank0_LP
0xA0
FSR
INDF0
FSR
STATUS, C
Bank1_LP
STATUS, IRP
0x20
FSR
INDF0
FSR
FSR, 7
Bank2_LP
0xA0
FSR
INDF0
FSR
STATUS, C
Bank3_LP
; Clear STATUS register (Bank0)
; 1st address (in bank) of GPR area
; Move it to Indirect address register
; Clear GPR at address pointed to by FSR
; Next GPR (RAM) address
; End of current bank ? (FSR = 80h, C = 0)
; NO, clear next location
; 1st address (in bank) of GPR area
; Move it to Indirect address register
; Clear GPR at address pointed to by FSR
; Next GPR (RAM) address
; End of current bank? (FSR = 00h, C = 1)
; NO, clear next location
; Select Bank2 and Bank3
;
; 1st address (in bank) of GPR area
; Move it to Indirect address register
; Clear GPR at address pointed to by FSR
; Next GPR (RAM) address
; End of current bank? (FSR = 80h, C = 0)
; NO, clear next location
; 1st address (in bank) of GPR area
; Move it to Indirect address register
; Clear GPR at address pointed to by FSR
; Next GPR (RAM) address
; End of current bank? (FSR = 00h, C = 1)
; NO, clear next location
; YES, All GPRs (RAM) is cleared
for Indirect addressing
DS31006A-page 6-15
6