PIC16F886-I/SS Microchip Technology, PIC16F886-I/SS Datasheet - Page 121

• Manufacturer Part Number: PIC16F886-I/SS
• Description: IC PIC MCU FLASH 8KX14 28SSOP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F886-I/SS

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 28-SSOP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 24
• Eeprom Size: 256 x 8
• Ram Size: 368 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 368 B
• Interface Type: MSSP/EUSART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM164123, DM164120-3, DV164122
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 11-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: DM164123 - KIT MANAGEMENT SYSTEM PICDEMAC164307 - MODULE SKT FOR PM3 28SSOPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

An example of the complete eight-word write sequence
is shown in Example 10-4. The initial address is loaded
into the EEADRH and EEADR register pair; the eight
words of data are loaded using indirect addressing.
EXAMPLE 10-4:
© 2009 Microchip Technology Inc.
LOOP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; This write routine assumes the following:
;
;
;
;
BANKSEL
MOVF
MOVWF
MOVF
MOVWF
MOVF
MOVWF
MOVF
MOVWF
INCF
MOVF
MOVWF
INCF
BANKSEL
BSF
BSF
BCF
BTFSC
GOTO
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
MOVLW
MOVWF
MOVLW
MOVWF
BSF
NOP
NOP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
BCF
BSF
BANKSEL
MOVF
INCF
ANDLW
SUBLW
BTFSS
GOTO
A valid starting address (the least significant bits = '000')
is loaded in ADDRH:ADDRL
ADDRH, ADDRL and DATADDR are all located in data memory
EEADRH
ADDRH,W
EEADRH
ADDRL,W
EEADR
DATAADDR,W
FSR
INDF,W
EEDATA
FSR,F
INDF,W
EEDATH
FSR,F
EECON1
EECON1,EEPGD ; Point to program memory
EECON1,WREN ; Enable writes
INTCON,GIE
INTCON,GIE
$-2
55h
EECON2
0AAh
EECON2
EECON1,WR
EECON1,WREN ; Disable writes
INTCON,GIE
EEADR
EEADR, W
EEADR,F
0x0F
0x0F
STATUS,Z
LOOP
WRITING TO FLASH PROGRAM MEMORY
; Load initial address
;
;
;
; Load initial data address
;
; Load first data byte into lower
;
; Next byte
; Load second data byte into upper
;
;
; Disable interrupts (if using)
; See AN576
; Start of required write sequence:
; Write 55h
;
; Write 0AAh
; Set WR bit to begin write
; Required to transfer data to the buffer
; registers
; Enable interrupts (comment out if not using interrupts)
; Increment address
; Indicates when sixteen words have been programmed
;
;
;
;
; Exit on a match,
; Continue if more data needs to be written
Required Sequence
0x0F = 16 words
0x0B = 12 words (PIC16F884/883/882 only)
0x07 = 8 words
0x03 = 4 words(PIC16F884/883/882 only)
PIC16F882/883/884/886/887
DS41291F-page 119