PIC16F MICROCHIP [Microchip Technology], PIC16F Datasheet - Page 18

• Manufacturer Part Number: PIC16F
• Description: PIC16F/LF182X/PIC12F/LF1822 Memory Programming Specification
• Manufacturer: MICROCHIP [Microchip Technology]

PIC16F/LF182X/PIC12F/LF1822
4.3.9
A Load Configuration, Load Data for Program Memory
or Load Data for Data Memory command must be given
before every Begin Programming command. Program-
ming of the addressed memory will begin after this
command is received. To complete the programming
the End Externally Timed Programming command
must be sent in the specified time window defined by
T
EEPROM, therefore, the device should be erased prior
to executing this command.
The Begin Externally Timed Programming command
cannot be used for programming the Configuration
Words (see Figure 4-9).
FIGURE 4-9:
4.3.10
This command is required after a Begin Externally
Timed
command must be sent within the time window
specified by T
Programming command is sent.
After sending the End Externally Timed Programming
command, an additional delay (T
sending the next command. This delay is longer than
the delay ordinarily required between other commands
(see Figure 4-10).
FIGURE 4-10:
DS41390C-page 18
PEXT
. No internal erase is performed for the data
Programming
ICSPCLK
ICSPDAT
ICSPDAT
BEGIN EXTERNALLY TIMED
PROGRAMMING
END EXTERNALLY TIMED
PROGRAMMING
ICSPCLK
PEXT
after the Begin Externally Timed
BEGIN EXTERNALLY TIMED PROGRAMMING
END EXTERNALLY TIMED PROGRAMMING
command
1
0
1
0
DIS
) is required before
2
is
2
1
0
given.
3
Advance Information
3
0
0
This
4
4
1
1
5
5
1
1
6
6
X
X
T
PEXT
T
End Externally Timed Programming
DIS
Command
1
0
1
2
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Next Command
X
1
2
3
0
X
3
X