Datasheet 搜索 > 微控制器 > Microchip（微芯） > PIC18F13K50-I/MQ 数据手册 > PIC18F13K50-I/MQ 用户编程技术手册 3/40 页
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PIC18F13K50-I/MQ 用户编程技术手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
QFN-20
描述:
PIC18F1xK50 8-Bit Microcontrollers### PIC18 微控制器
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PIC18F13K50-I/MQ数据手册
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2010 Microchip Technology Inc. Advance Information DS41342E-page 3
PIC18F1XK50/PIC18LF1XK50
2.1.1 LOW-VOLTAGE ICSP
PROGRAMMING
In Low-Voltage ICSP mode, the PIC18F1XK50/
PIC18LF1XK50 devices can be programmed using a
single V
DD source in the operating range. The MCLR/
V
PP/RA3 does not have to be brought to a different volt-
age, but can instead be left at the normal operating
voltage. Refer to Section 8.1 “AC/DC Characteristics
Timing Requirements for Program/Verify Test
Mode” for additional hardware parameters.
2.1.1.1 Single-Supply ICSP Programming
The LVP bit in Configuration register, CONFIG4L,
enables single-supply (low-voltage) ICSP
programming. The LVP bit defaults to a ‘1’ (enabled)
from the factory.
If Single-Supply Programming mode is not used, the
LVP bit can be programmed to a ‘0’ and RC3/PGM
becomes a digital I/O pin. However, the LVP bit may
only be programmed by entering the High-Voltage
ICSP mode, where MCLR
/VPP/RA3 is raised to VIHH.
Once the LVP bit is programmed to a ‘0’, only the
High-Voltage ICSP mode is available and only the
High-Voltage ICSP mode can be used to program the
device.
Note 1: The High-Voltage ICSP mode is always
available, regardless of the state of the
LVP bit, by applying VIHH to the MCLR/
V
PP/RA3 pin.
2: While in Low-Voltage ICSP mode, the
RC3 pin can no longer be used as a
general purpose I/O.
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