PIC16F1516 datasheet(99/344 Pages) MICROCHIP

tên linh kiện	PIC16F1516

Giải thích chi tiết về linh kiện	28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology

PDF	344 Pages

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nhà sản xuất	MICROCHIP [Microchip Technology]

Trang chủ	http://www.microchip.com

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 2011 Microchip Technology Inc.

Preliminary

DS41452B-page 99

PIC16(L)F1516/7/8/9

FIGURE 11-2:

FLASH PROGRAM MEMORY READ CYCLE EXECUTION

EXAMPLE 11-1:

FLASH PROGRAM MEMORY READ

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

BSF PMCON1,RD

executed here

INSTR(PC + 1)

executed here

PC + 1

PMADRH,PMADRL

PC+3

PC + 5

Flash ADDR

RD bit

PMDATH,PMDATL

PC + 3

PC + 4

INSTR (PC + 1)

INSTR(PC - 1)

executed here

INSTR(PC + 3)

executed here

INSTR(PC + 4)

executed here

Flash Data

PMDATH

PMDATL

INSTR (PC)

INSTR (PC + 3)

INSTR (PC + 4)

instruction ignored

Forced NOP

INSTR(PC + 2)

executed here

instruction ignored

Forced NOP

* This code block will read 1 word of program

* memory at the memory address:

PROG_ADDR_HI : PROG_ADDR_LO

data will be returned in the variables;

PROG_DATA_HI, PROG_DATA_LO

BANKSEL

PMADRL

; Select Bank for PMCON registers

MOVLW

PROG_ADDR_LO

;

MOVWF

PMADRL

; Store LSB of address

MOVLW

PROG_ADDR_HI

;

MOVWL

PMADRH

; Store MSB of address

BCF

PMCON1,CFGS

; Do not select Configuration Space

BSF

PMCON1,RD

; Initiate read

NOP

; Ignored (Figure 11-2)

NOP

; Ignored (Figure 11-2)

MOVF

PMDATL,W

; Get LSB of word

MOVWF

PROG_DATA_LO

; Store in user location

MOVF

PMDATH,W

; Get MSB of word

MOVWF

PROG_DATA_HI

; Store in user location

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