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| 型号： | ICE2000 |
| 厂商： | Microchip Technology |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | EMULATOR MPLAB-ICE 2000 POD |
| 产品培训模块： | Asynchronous Stimulus |
| 标准包装： | 1 |
| 系列： | MPLAB® ICE 2000 |
| 类型： | 微控制器 |
| 适用于相关产品： | Microchip 8 位 PICmicro? 微控制器 |
| 所含物品： | 仿真器转接板、MPLAB IDE 软件、平行缆线、电源与缆线、仿真器支座、逻辑探针与用户指南 |
| 产品目录页面： | 658 (CN2011-ZH PDF) |
| 相关产品： | XLT28SS2-1-ND - SOCKET TRANSITION 28DIP-28SSOP PCM18XQ2-ND - MODULE PROCESSOR FOR PIC18F8490 PIC16F723T-I/SOTR-ND - IC PIC MCU FLASH 4KX14 28SOIC PIC16F723-I/SO-ND - IC PIC MCU FLASH 4KX14 28-SOIC PIC16F723-E/SO-ND - IC PIC MCU FLASH 4KX14 28-SOIC PIC16F722T-I/SOTR-ND - IC PIC MCU FLASH 2KX14 28SOIC PIC16F722-I/SO-ND - IC PIC MCU FLASH 2KX14 28-SOIC PIC16F722-E/SO-ND - IC PIC MCU FLASH 2KX14 28-SOIC PCM16YR0-ND - MODULE PROC PIC16F88X PCM16XP1-ND - MODULE PROC PIC16F627,628 更多... |
MPLAB ? ICE 2000
4.3.2
CLOCK SOURCE FROM THE TARGET
4.5
Freeze Mode
APPLICATION
If the target application is selected to provide the clock
source, the target board must also be selected to
power the emulator processor (see the MPLAB ICE
2000 on-line help file in MPLAB IDE ( Help>Topics ) or
the “ MPLAB ? ICE 2000 In-Circuit Emulator User ’s
Guide” (DS51488), “Using a Target Board Clock”).
At low voltage, the maximum speed of the processor
will be limited to the rated speed of the device under
emulation.
An oscillator circuit on the device adapter generates a
clock to the processor module and buffers the clock
circuit on the target board. In this way, the MPLAB ICE
2000 emulator closely matches the oscillator options of
the actual device. All oscillator modes are supported
(as documented in the device’s data sheet) except as
noted in Section 3.0 “Emulator-Related Issues” . The
OSC1 and OSC2 inputs of the device adapter have a
5 pF to 10 pF load. Be aware of this when using a
crystal in HS, XT, LP or LF modes, or an RC network in
RC mode.
The frequency of the emulated RC network may vary
relative to the actual device due to emulator circuitry.
If a specific frequency is important, adjust the RC val-
ues to achieve the desired frequency. Another alterna-
tive would be to allow the emulator to provide the
When using the target board clock, the system’s
operating voltage is between 2.5V and 5.5V.
The MPLAB ICE 2000 system allows the option of
“freezing” peripheral operation or allowing them to
continue operating when the processor is halted. This
option is configured in the MPLAB IDE. The Freeze
function is available on all processor modules except
the PCM16XA0.
This function is useful to halt an on-board timer while at
a break point. At a break point and while single
stepping, interrupts are disabled.
5.0 DEVICE ADAPTER ISSUES
This section details processor-specific considerations
that have been made on device adapters. Only
adapters with special considerations are listed.
There will be a max of 10 mA of current draw from the
target system even when the emulator processor
module is being powered by the emulator system, and
running internal clock. This is due to components on
the device adapter being powered by the target board.
4.4
ESD Protection and Electrical
Overstress
All CMOS chips are susceptible to electrostatic
discharge (ESD). In the case of the processor modules,
the pins of the CMOS emulator are directly connected
to the target connector, making the chip vulnerable to
ESD. ESD can also induce latch-up in CMOS chips,
causing excessive current through the chip and
possible damage. MPLAB ICE 2000 has been
designed to minimize potential damage by implement-
ing overcurrent protection and transient suppressors.
However, care should be given to minimizing ESD
conditions while using the system.
During development, contention on an I/O pin is
possible (e.g., when an emulator pin is driving a ‘ 1 ’ and
the target board is driving a ‘ 0 ’). Prolonged contention
may cause latch-up and damage to the emulator chip.
One possible precaution is to use current limiting
resistors (~100 Ω ) during the development phase on
bidirectional I/O pins. Using limiting resistors can also
help avoid damage to modules, device adapters and
pods that occurs when a voltage source is accidentally
connected to an I/O pin on the target board.
DS51140M-page 4
? 2006 Microchip Technology Inc.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICE2000 | 制造商:Microchip Technology Inc 功能描述:MICROCONTROLLER DEVELOPMENT TOOL |
| ICE2000USERGUIDE | 制造商:未知厂家 制造商全称:未知厂家 功能描述:ICE 2000 User Guide |
| ICE-203-SD2-TG | 制造商:3M Electronic Products Division 功能描述: |
| ICE-203-S-TG | 功能描述:IC 与器件插座 20P OPN BDY SCRW MCH RoHS:否 制造商:Molex 产品:LGA Sockets 节距:1.02 mm 排数: 位置/触点数量:2011 触点电镀:Gold 安装风格:SMD/SMT 端接类型:Solder 插座/封装类型:LGA 2011 工作温度范围:- 40 C to + 100 C |
| ICE-203-S-TG30 | 功能描述:IC 与器件插座 20P OPN BDY SCRW MCH RoHS:否 制造商:Molex 产品:LGA Sockets 节距:1.02 mm 排数: 位置/触点数量:2011 触点电镀:Gold 安装风格:SMD/SMT 端接类型:Solder 插座/封装类型:LGA 2011 工作温度范围:- 40 C to + 100 C |
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