参数资料
型号: PMF18WE1
厂商: Microchip Technology
文件页数: 82/98页
文件大小: 0K
描述: PROCESSOR MODULE FOR ICE4000
标准包装: 1
模块/板类型: 处理器模块
适用于相关产品: ICE4000
MPLAB ? ICE 4000 User’s Guide
B.7
LOGIC PROBES
The 14-pin connector (Figure B-3) on the front panel of the MPLAB ICE 4000 emulator
(Figure B-2) provides power, ground, an external break input, a trigger input, a trigger
output and up to eight trace/trigger inputs.
FIGURE B-3:
LOGIC PROBE PINOUT
Logic Probe Pinout on Emulator
13
14
1
2
Logic probes may be attached to this connector to give the functionality described in
Table B-1. The probes are color-coded for easy identification.
TABLE B-1:
LOGIC PROBE PINOUT DESCRIPTION
Pin
1
2
I/O
O
O
Name
V DD
HLTOUT
Function
System Power. Will supply +5V ±5%, up to 250 mA
Processor Halted Signal. Indicates whether the
Color
Red
Gray
processor is halted (high) or running (low).
3
4
O
I
TRGOUT
TRGIN
Trigger/Break Out
Trigger In. Active-high input will freeze the trace
Gray
Gray
buffer without halting the processor or edge triggered
input will halt the processor.
5
6
7
8
9
10
11
12
13
14
I
I
I
I
I
I
I
I
Gnd
Gnd
EXT7
EXT6
EXT5
EXT4
EXT3
EXT2
EXT1
EXT0
GND
GND
External input bit 7 of the trace/trigger inputs.
External input bit 6 of the trace/trigger inputs.
External input bit 5 of the trace/trigger inputs.
External input bit 4 of the trace/trigger inputs.
External input bit 3 of the trace/trigger inputs.
External input bit 2 of the trace/trigger inputs.
External input bit 1 of the trace/trigger inputs.
External input bit 0 of the trace/trigger inputs.
System Ground
System Ground
White
White
White
White
White
White
White
White
Black
Black
The electrical specifications for logic probes are listed in Table B-2.
DS51490A-page 76
TABLE B-2:
Logic Inputs
Logic Outputs
TRGIN
TRGOUT
LOGIC PROBE ELECTRICAL SPECIFICATIONS
V IH = 3.2V min
V IL = 1.8V max
V OH = 2.4V min
V OL = 0.4V max
Minimum input pulse width = 15 nsec
The output pulse width of the filter trace is one bus cycle, which is ? the
clock speed (PICmicro MCU devices use four clocks for each
instruction).
? 2004 Microchip Technology Inc.
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