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Hardware Specification
10.6
STANDARD COMMUNICATION HARDWARE
For standard debugger communication with a target ( Section 2.3 “Debugger to
Target Communication” , “Standard ICSP Device Communication“), use an adapter
with an RJ-11 connector.
To use this type of communication with a header board, you may need a device-specific
Processor Pak, which includes an 8-pin connector header board containing the desired
ICE/ICD device and a standard adapter board.
Note:
Older header boards used a 6-pin (RJ-11) connector instead of an 8-pin
connector, so these headers may be connected directly to the debugger.
For more on available header boards, see the “ Header Board Specification”
(DS51292).
10.6.1
Standard Communication
The standard communication is the main interface to the target processor. It contains
the connections to the high voltage (V PP ), V DD sense lines, and clock and data
connections required for programming and connecting with the target devices.
The V PP high-voltage lines can produce a variable voltage that can swing from 1.8 to
14 volts to satisfy the voltage requirements for the specific emulation processor.
The V DD sense connection draws current from the target processor.
The clock and data connections are interfaces with the following characteristics:
? Clock and data signals are in high-impedance mode (even when no power is
applied to the PICkit 3 programmer/debugger system)
? Clock and data signals are protected from high voltages caused by faulty targets
systems, or improper connections
? Clock and data signals are protected from high current caused from electrical
shorts in prototype or target systems
FIGURE 10-1:
6-PIN STANDARD PINOUT
Standard Socket
Pin
1
Name
MCLR/V PP
Power
Function
1
2
4 6
3 5
Bottom of
Target Board
2
3
4
5
V DD _TGT
GND
PGD (ICSPDAT)
PGC (ICSPCLK)
Power on target
Ground
Standard Com Data
Standard Com Clock
? 2009 Microchip Technology Inc.
6
LVP
Low Voltage Programming
DS51795A-page 61
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