AC244006 Microchip Technology, AC244006 Datasheet - Page 22

• Manufacturer Part Number: AC244006
• Description: KIT MPLAB REAL ICE TRACE
• Manufacturer: Microchip Technology

Specifications of AC244006

• Accessory Type: Interface Board
• Features: Instruction Trace Capability, Polarized Interface
• For Use With: PIC32MX Plug-in Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS51616A-page 18
®
• The target device must have its configuration words programmed correctly:
Once the above conditions are met, you may proceed to the following:
• Sequence of Operations Leading to Debug Mode
• Debug Mode Details
2.7.1
Given that the Requirements For Debug Mode are met, these actions can be
performed when the MPLAB REAL ICE in-circuit emulator is set as the current
debugger (Debugger>Select Tool):
• When Debugger>Program is selected, the application code is programmed into
• A small “debug executive” program is loaded into the high area of program
• Special “in-circuit debug” registers in the target device are enabled. These allow
• The target device is held in Reset by keeping the V
2.7.2
Figure 2-13 illustrates the MPLAB REAL ICE in-circuit emulator system when it is ready
for debugging.
FIGURE 2-13:
- The oscillator Configuration bits should correspond to RC, XT, etc., depending
- For some devices, the Watchdog Timer is enabled by default and needs to be
- The target device must not have code protection enabled.
- The target device must not have table read protection enabled.
the device’s memory via the ICSP protocol as described above.
memory of the target device. Since the debug executive must reside in program
memory, the application program must not use this reserved space. The debug
executive typically needs about 0x120 words of program memory. Some devices
have special memory areas dedicated to the debug executive. Check your device
data sheet for details.
the debug executive to be activated by the emulator.
upon the target design.
disabled.
Sequence of Operations Leading to Debug Mode
Debug Mode Details
+5V
™
+12V
Internal Circuits
MPLAB
DEBUGGING
4.7 kΩ
4.7 kΩ
®
REAL ICE™ IN-CIRCUIT EMULATOR READY FOR
Hardware
Stack Shared
by Debug Exec
Bytes Used by
Debug Exec
About 0x10
1
5
4
PGC
V
V
PGD
PP
DD
/MCLR
PP
Registers
/MCLR line low.
Executive
Registers
Program
Memory
Internal
Debug
Debug
File
© 2006 Microchip Technology Inc.
for Debug
Executive
to Function
Area
Reserved
for Debug
Executive
Running
Target
must
be