Datasheet
Emulator User’s Guide for MPLAB X IDE
DS52085A-page 112 2013 Microchip Technology Inc.
12.5 STANDARD COMMUNICATION HARDWARE
For standard emulator communication with a target (Section 3.4.1 “Standard Com-
munication”), use the standard driver board.
To use this type of communication with a debug header, you may need a device-spe-
cific Processor Pak, which includes an 8-pin connector debug header containing the
desired ICE/ICD device and a standard adapter board (8-pin to 6-pin connection).
For more on available debug headers, see the “Debug Header Specification” in “Rec-
ommended Reading”.
12.5.1 Standard Driver Board
The standard driver board is the main interface to the target processor. It contains the
connections to the high voltage (V
PP), VDD 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 14 to 0
volts to satisfy the voltage requirements for the specific emulation processor.
The V
DD sense connection draws very little current from the target processor. The
actual power comes from the MPLAB REAL ICE in-circuit emulation system as the V
DD
sense line is used as a reference only to track the target voltage. The V
DD connection
is isolated with an optical switch.
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 MPLAB REAL ICE in-circuit emulator 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 faulty target systems
FIGURE 12-2: MODULAR CONNECTOR PINOUT OF STANDARD DRIVER
BOARD
Note: Older debug headers used a 6-pin (RJ-11) connector instead of an 8-pin
connector, so these headers may be connected directly to the emulator.
Note: When using the standard driver board, the rate for real-time streaming data
and tracing is limited to 15 MIPS.
1
6
Bottom view of Modular Connector
Pinout on Std Driver Board
16
Front view of Modular Connector
on Std Driver Board
35
24
Modular
Connector Pin
Microcontroller
Pin
1 Not Used
2 RB6
3RB7
4 Ground
5V
DD Targ et
6 VPP