参数资料
型号: ATICE50POD
厂商: Atmel
文件页数: 53/73页
文件大小: 0K
描述: REPLACEMENT POD FOR ICE40,ICE50
标准包装: 1
附件类型: POD 替代套件
适用于相关产品: AVR ICE40 和 ICE50
产品目录页面: 615 (CN2011-ZH PDF)

Section 6
Special Considerations
The ICE50 accurately emulates most AVR features. However, there are some differ-
ences worth noting.
Clock Options
A/D Converter Accuracy
Differences from actual part
Electrical Compatibility
Sleep mode
Target hardware requirements
If you experience problems not described in this section, please see the troubleshooting
section for more information.
6.1
6.1.1
Electrical
Compatibility
Power
ICE50 is created to emulate an actual AVR device in detail. When it comes to electrical
compatibility some issues must be considered. They are described in this section.
The POD is protected against wrong polarity from the target power. In addition the POD
will not be powered when ICE50 power is disabled. See Figure 6-1.
Figure 6-1. Power
ICE on
Target Power
POD Polarity
Protection
POD
6.1.2
I/O Lines
The I/O lines are current limited by a thermistor. Over voltage is suppressed by a schot-
tky diode. This circuit can be seen in Figure 6-2.
ICE50 User Guide
6-1
Rev. 2523A–AVR–11/02
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