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參數(shù)資料
| 型號： | R8820LV |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 16-BIT RISC MICROCONTROLLER |
| 中文描述： | 16位RISC微控制器 |
| 文件頁數(shù)： | 61/98頁 |
| 文件大?。?/td> | 1000K |
| 代理商： | R8820LV |
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R DC
RISC DSP Controller
R8820LV
RDC Semiconductor Co.
Rev:1.0
Subject to change without notice
61
14.3
Serial Port/DMA Transfer
The serial port data can be DMA transfer to or from memory( or IO) space. And the
B
/W bit of DMA control Register must
be set 1 for byte transfer. The map address of Transmit Data Register is written to the DMA Destination Address Register and
the memory (or I/O) address is written to the DMA Source Address Register, when transmit data. The map address of Receive
Data Register is written to the DMA Source Address Register and the memory (or I/O) address is written to the DMA
Destination Address Register, when receive data.
The software is programmed through the Serial Port Control Register to perform the serial port/ DMA transfer.
When a DMA channel is in use by a serial port, the corresponding external DMA request signal is deactivated. For DMA to the
serial port, the DMA channel should be configured as destination synchronized. For DMA from the serial port, the DMA
channel should be configured as source synchronized.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| R8821 | 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER |
| R8822 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RDC 16 Bit RISC MICRO-CONTROLLER |
| R8822I | 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER |
| R8830 | 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER |
| R8830I | 制造商:RDC 制造商全稱:RDC 功能描述:16-BIT RISC MICROCONTROLLER |
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