OPTION_REG datasheet(108/222 Pages) MICROCHIP

Il numero della parte	OPTION_REG

Spiegazioni elettronici	Digitally Enhanced Power Analog Controller with Integrated Synchronous Driver

PDF	222 Pages

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Produttore elettronici	MICROCHIP [Microchip Technology]

Homepage	http://www.microchip.com

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108 / 222 page

MCP19111

DS22331A-page 108

 2013 Microchip Technology Inc.

FIGURE 18-2:

BLOCK WRITES TO 4K FLASH PROGRAM MEMORY

FIGURE 18-3:

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 new row

sixteen words of

Flash are erased,

then four buffers

are transferred to

Flash automatically

after this word is

written

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

EE 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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