PIC16LF1906-E/SO View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LF1906-E/SO

28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology

Microchip Technology 

PIC16LF1904/6/7

FIGURE 10-6:

FLASH PROGRAM MEMORY WRITE FLOWCHART

Start

Write Operation

Determine number of words

to be written into Program or

Configuration Memory.

The number of words cannot

exceed the number of words

per row.

(word_cnt)

Enable Write/Erase

Operation (WREN = 1)

Load the value to write

(PMDATH:PMDATL)

Disable Interrupts

(GIE = 0)

Select

Program or Config. Memory

(CFGS)

Select Row Address

(PMADRH:PMADRL)

Select Write Operation

(FREE = 0)

Load Write Latches Only

(LWLO = 1)

Update the word counter

(word_cnt--)

Last word to Yes

write ?

No

Unlock Sequence

F(Figiguurere1x0-x3)

No delay when writing to

Program Memory Latches

Increment Address

(PMADRH:PMADRL++)

Write Latches to Flash

(LWLO = 0)

Unlock Sequence

F(Figiguurere1x0-x3)

CPU stalls while Write

operation completes

(2 ms typical)

Disable

Write/Erase Operation

(WREN = 0)

Re-enable Interrupts

(GIE = 1)

End

Write Operation

 2011 Microchip Technology Inc.

Preliminary

DS41569A-page 93

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