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參數(shù)資料
| 型號： | XR-88C681 |
| 廠商： | Exar Corporation |
| 英文描述： | () |
| 中文描述： | （） |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 64K |
| 代理商： | XR-88C681 |
TAN - 011
A Comparison between Exar’s XR-88C681 and Motorola’s MC2681 DUART Devices
Both Tables 3 and 4 call for Table 5 where the Bit Formats for the Miscellaneous
Commands are defined for both the XR-88C681 and the MC2681 devices. Please note
that the XR-88C681 uses four bits out of the Command Registers for the Miscellaneous
Commands; whereas, the MC2681 only uses three bits out of the Command Register.
When writing to one of the Command Registers of the MC2681 device, the Most
Significant Bit (MSB) is interpreted as a “Don’t Care”. Consequently only 8 different
Miscellaneous Commands are available from the MC2681. In contrast, 14 different
Miscellaneous Commands are available with the XR-88C681 device. The commands
listed in Table 5 applies to both Channels A and B, unless otherwise specified.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| XR-88C681/24CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART |
| XR-88C681/24N | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART |
| XR-88C681/28CN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART |
| XR-88C681/28CP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART |
| XR-88C681/28M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART |
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