收藏本站
General Description
Figure 3-25. External Clock
Enable
XTAL1
Enable
XTAL2
3.7.1.1
3.7.1.2
3.7.2
3.7.3
3-18
Available Clock
Options
ICE50 Probe version
A9902.3.1200.E
External Clock
Signal
Internal Clock Signal
Provided by AVR
Studio
The current version of the Probe has some restrictions with regards to clock options
support. The unsupported clock modes are quite easy to emulate with simple
workarounds as described in Section 3.7.6 and Section 3.7.7. The Probe version can be
found on top of the back side of the Probe (left side of the right picture above).
Version A9902.3.1200.E of the Probe supports the following clock options:
External Clock Signal
Internal Clock Signal provided by AVR Studio
External 32 kHz RTC Crystal
Internal Calibrated RC Oscillator
The following clock options are not supported by Probe version A9902.3.1200.C. A
description for workarounds for the unsupported clock modes can be found in section
“External Crystal and External Resonator” on page 19 and “External RC Oscillator” on
page 19.
An external clock signal can be applied to the XTAL1 pin on the emulator probe. The
Emulator can then be set up to use this signal as the system clock. See device selection
for a description of how to set up AVR Studio for this option. The clock signal must meet
the conditions as shown in Table 3-7.
Table 3-7. Clock Signal Conditions
Value
Frequency
5KHz to 20MHz
Duty cycle
50%
Absolute maximum input voltage
1.8 - 7.0V
Recommended input voltage
1.8 - 5.5V
Minimum high level input voltage
1.7V
Maximum low level input voltage
0.5V
The Emulator may be set up to run on an internal programmable clock. The frequency
range of this programmable clock is 5 kHz to 20 MHz. However, the maximum fre-
quency cannot be set higher than the speed limit of the actual part. Only certain output
frequencies are possible to generate with highest accuracy. However the clock genera-
tor generally produces an output frequency within 0.1% of the desired output frequency.
If the target application should run on the same clock as the AVR chip/emulator, the
internal programmable clock may be driven out on the XTAL2 pin. See section device
selection for a description of how to set up the internal programmable clock.
ICE50 User Guide
2523A–AVR–11/02
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
ATQT600IB BOARD INTERFACE ATQT600IB
ATSTK1000 KIT STARTER FOR AVR32AP7000
ATSTK501 ADAPTER KIT FOR 64PIN AVR MCU
ATSTK502 MOD EXPANSION AVR STARTER 500
ATSTK503 STARTER KIT AVR EXP MODULE 100P
ATSTK504 STARTER KIT AVR EXP MOD 100P LCD
ATSTK505 ADAPTER KIT FOR 14PIN AVR MCU
ATSTK520 ADAPTER KIT FOR 90PWM
相关代理商/技术参数
ATICE50PROBE 功能描述:处理器配件 ICE50 PROBE INC. FLEX CABLES RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
ATIHCTV5 制造商:Atrix International 功能描述:HCTV Series High Capacity ESD-Safe Vacuum - 5-Gallon Capacity
ATIHCTV5CT 制造商:Atrix International 功能描述:HCTV Series High Capacity ESD-Safe HEPA Vacuum - 5 Gallon Capacity
ATII04V 制造商:APEM 功能描述: 制造商:APEM 功能描述:Trinary DIP Switch
ATIO1-XPRO 功能描述:开发板和工具包 - ARM Xplained Pro I/O eval add-on wing RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V
ATIR 1610 功能描述:TOOL INS/REM TWEEZER 22GA 制造商:astro tool corp 系列:* 零件状态:有效 标准包装:1
ATIR 1610-A 功能描述:TWEEZER INS/REM 22GA AIRBORN 制造商:astro tool corp 系列:* 零件状态:有效 标准包装:1
ATIR 1610-L 制造商:Astro Tool Corp 功能描述:TOOL INS/REM TWEEZER 22GA