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参数资料
| 型号： | FR3-8M |
| 厂商： | TechTools |
| 文件页数： | 22/38页 |
| 文件大小： | 0K |
| 描述： | EMULATOR FLASH FLEXROM III 8MEG |
| 标准包装： | 1 |
| 系列： | FlexROM™ III |
| 类型： | 存储器 |
| 适用于相关产品： | 外部 FLASH、EPROM 或 SRAM 设备 |
| 所含物品： | 需要 FR3 FlexROM III 仿真器、缆线（菊花链、LPT、迷你型夹和目标）、软件、有源缆线模块 |
| 其它名称： | FR38M |
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collision since Flex ROM III will wait until it sees a valid target cycle end before starting its cycle. Also, we
will only collide if the target cycle time is less than 300ns. The down-side is that if the target stops
accessing the emulator’s memory space or accesses it infrequently, arbitration will time out. The other
option is to configure Flex ROM III for REQUEST/FE-GRANT arbitration and then short the REQUEST
line to the GRANT line; ensuring that Flex ROM III always receives an immediate grant. This method will
always allow Flex ROM III access to the memory, but will blindly disrupt any current target access.
RESET
Of course this is not arbitration, but it is always worth asking “Do I really need to arbitrate at all?” If the
changes that you will make to the EPROM/FLASH will require re-starting the target to take affect (like
code changes), arbitration is not required (or desired). Simply let Flex ROM III assert reset during the
modifications. Flex ROM III will then be guaranteed access to the emulation memory and the target will be
automatically re-started after the changes.
FlexROM III User’s Manual
20
Copyright ? 2001, TechTools
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| FR3A | 制造商:SEMIKRON 制造商全称:Semikron International 功能描述:Fast silicon rectifier diodes |
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