MCP1631RD-MCC2 Microchip Technology, MCP1631RD-MCC2 Datasheet - Page 121

• Manufacturer Part Number: MCP1631RD-MCC2
• Description: REFERENCE DESIGN MCP1631HV
• Manufacturer: Microchip Technology

Specifications of MCP1631RD-MCC2

• Main Purpose: Power Management, Battery Charger
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP1631HV, PIC16F883
• Primary Attributes: 1 ~ 2 Cell- Li-Ion, 1 ~ 5 Cell- NiCd/NiMH, 1 ~ 2 1W LEDs
• Secondary Attributes: Status LEDs
• Silicon Manufacturer: Microchip
• Application Sub Type: Battery Charger
• Kit Application Type: Power Management - Battery
• Silicon Core Number: MCP1631HV, PIC16F883
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 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