Microchip Technology MPLAB ICE, User Manual

Page: 164 / 192

MPLAB
®
ICE User’s Guide
DS51159B-page 164

2001 Microchip Technology Inc.
The electrical specifications for logic probes are listed in Table B.5.
Table B.4: Logic Probe Pinout Description
Pin I/O Name Function Color
1 O V
DD
System Power. Will 5V ±5%, up to
250 mA Red
2 O HLTOUT Processor Halted Signal. Indicates whether
the processor is halted (high) or running
(low). Gray
3 O TRGOUT Trigger/Break Out Gray
4 I TRGIN Trigger In. Active-high input will freeze the
trace buffer without halting the processor or
edge triggered input will halt the processor. Gray
5 I EXT7 External input bit 7 of the trace/trigger
inputs. White
6 I EXT6 External input bit 6 of the trace/trigger
inputs. White
7 I EXT5 External input bit 5 of the trace/trigger
inputs. White
8 I EXT4 External input bit 4 of the trace/trigger
inputs. White
9 I EXT3 External input bit 3 of the trace/trigger
inputs. White
10 I EXT2 External input bit 2 of the trace/trigger
inputs. White
11 I EXT1 External input bit 1 of the trace/trigger
inputs. White
12 I EXT0 External input bit 0 of the trace/trigger
inputs. White
13 Gnd GND System Ground Black
14 Gnd GND System Ground Black
Table B.5: Logic Probe Electrical Specifications
Logic Inputs V
IH
= 3.2V min
V
IL
= 1.8V max
Logic Outputs V
OH
= 2.4V min
V
OL
= 0.4V max
TRGIN Minimum input pulse width = 15 nsec
TRGOUT The output pulse width of the filter trace is one bus
cycle, which is ¼ the clock speed (PICmicro MCU
devices use four clocks for each instruction).