Microchip Technology MPLAB ICE, Руководство пользователя

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MPLAB
®
ICE User’s Guide
DS51159B-page 168

2001 Microchip Technology Inc.
C.7 External Inputs and Outputs
Similarities and differences between PICMASTER and MPLAB ICE logic
probes are listed in the table below.
PICMASTER vs. MPLAB ICE I/O
PICMASTER MPLAB ICE I/O Description
V
DD
V
DD
O +5V power (250mA Max)
GND GND I Common ground
Tr[0:7] EXT[0:7] I Eight (8) external trace inputs
BRKT TRGIN I External Trace Halt Signal. Halts the
trace buffer on a rising edge without
halting the processor.
BRK TRGIN I External Break Input Signal. Halts the
processor either on a rising or falling
edge, where the edge is software pro-
grammable.
TRIGO TRGOUT* O Trigger Output Signal. Use this signal
for triggering oscilloscopes, accurate
time measurement, etc.
TRIGT — O Trace Trigger Signal. This is the same
clock applied to the trace buffer for
incrementing trace address. Use this
clock to trigger instruments like logic
analyzers.
— HLTOUT O Processor Halted Signal. Indicates
whether the processor is halted (high)
or running (low).
* To get continuous triggers from MPLAB ICE 2000 like the PICMASTER
triggers, you should set up a filtered trace with Infinite Events and check the
box on Trigger In/Out Dialog.