PIC16F1824 View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16F1824 Datasheet PDF : 40 Pages
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PIC16F/LF182X/PIC12F/LF1822
4.3.9
BEGIN EXTERNALLY TIMED
PROGRAMMING
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
TPEXT. No internal erase is performed for the data
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:
ICSPCLK
BEGIN EXTERNALLY TIMED PROGRAMMING
123
End Externally Timed Programming
Command
456
12
3
TPEXT
ICSPDAT
00
0 11
X
0
10
4.3.10 END EXTERNALLY TIMED
PROGRAMMING
This command is required after a Begin Externally
Timed Programming command is given. This
command must be sent within the time window
specified by TPEXT after the Begin Externally Timed
Programming command is sent.
After sending the End Externally Timed Programming
command, an additional delay (TDIS) is required before
sending the next command. This delay is longer than
the delay ordinarily required between other commands
(see Figure 4-10).
FIGURE 4-10:
END EXTERNALLY TIMED PROGRAMMING
ICSPCLK
ICSPDAT
123
456
TDIS
0
10
1
1
X
Next Command
12
3
X
X
X
DS41390C-page 18
Advance Information
2010 Microchip Technology Inc.
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