PIC16F753 datasheet(31/230 Pages) MICROCHIP

No de pièce	PIC16F753

Description	14/16-Pin, Flash-Based 8-Bit CMOS Microcontrollers

PDF	230 Pages

Scroll/Zoom	100%

Fabricant	MICROCHIP [Microchip Technology]

Site Internet	http://www.microchip.com

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31 / 230 page

 2013-2015 Microchip Technology Inc.

DS40001709C-page 31

PIC16F753/HV753

FIGURE 3-2:

BLOCK WRITES TO 1K FLASH PROGRAM MEMORY

FIGURE 3-3:

FLASH PROGRAM MEMORY LONG WRITE CYCLE EXECUTION

Program Memory

Buffer Register

PMADRL<1:0> = 00

Buffer Register

PMADRL<1:0> = 01

Buffer Register

PMADRL<1:0> = 10

Buffer Register

PMADRL<1:0> = 11

PMDATL

PMDATH

First word of block

to be written

If at a new row

to Flash

automatically

after this word

is written

are transferred

Flash are erased,

then four buffers

sixteen words of

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

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

BSF PMCON1,WR

Executed here

INSTR (PC + 1)

Executed here

PC + 1

Flash

INSTR

PMDATH,PMDATL

INSTR (PC+3)

INSTR

NOP

Executed here

Flash

PMWHLT

WR bit

Processor halted

PM Write Time

PMADRH,PMADRL

PC + 3

PC + 4

INSTR (PC + 3)

Executed here

ADDR

DATA

Memory

Location

ignored

read

PC + 2

INSTR (PC+2)

(INSTR (PC + 2)

NOP

Executed here

(PC)

(PC + 1)

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