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参数资料
| 型号： | MSM82C51A-2 |
| 厂商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Universal Synchronous Asynchronous Receiver Transmitter(通用同步/异步接收发送器,同步通讯最高可达64Kbps,异步通讯最高可达38.4Kbps) |
| 中文描述： | 通用同步异步收发器（通用同步/异步接收发送器，同步通讯最高可达64Kbps的，异步通讯最高可达38.4Kbps） |
| 文件页数： | 5/26页 |
| 文件大小： | 203K |
| 代理商： | MSM82C51A-2 |
5/26
Semiconductor
MSM82C51A-2RS/GS/JS
Control Words
There are two types of control word.
1. Mode instruction (setting of function)
2. Command (setting of operation)
1) Mode Instruction
Mode instruction is used for setting the function of the MSM82C51A-2. Mode instruction
will be in “wait for write” at either internal reset or external reset. That is, the writing of a
control word after resetting will be recognized as a “mode instruction.”
Items set by mode instruction are as follows:
Synchronous/asynchronous mode
Stop bit length (asynchronous mode)
Character length
Parity bit
Baud rate factor (asynchronous mode)
Internal/external synchronization (synchronous mode)
Number of synchronous characters (Synchronous mode)
The bit configuration of mode instruction is shown in Figures 2 and 3. In the case of
synchronous mode, it is necessary to write one-or two byte sync characters.
If sync characters were written, a function will be set because the writing of sync characters
constitutes part of mode instruction.
S
1
S
1
EP
PEN
L
2
L
1
B
2
B
1
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
0
1
0
1
0
0
1
1
Refer to
Fig. 3
SYNC
1
￥
16
￥
64
￥
Baud Rate Factor
0
1
0
0
0
1
5 bits
6 bits
7 bits
Charactor Length
1
1
8 bits
0
1
0
1
0
0
1
1
Disable
Odd
Parity
Disable
Even
Parity
Parity Check
0
1
0
0
0
1
Inhabit
1 bit
1.5
bits
Stop bit Length
1
1
2 bits
Fig. 2 Bit Configuration of Mode Instruction (Asynchronous)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MSM82C51A-2GS | 制造商:OKI 制造商全称:OKI electronic componets 功能描述:UNIVERSAL SYNCHRONOUS ASYNCHRONOUS RECEIVER TRANSMITTER |
| MSM82C51A-2GS-K | 制造商:OK International 功能描述:USART, 32 Pin, Plastic, SOP 制造商:OKI Semiconductor 功能描述:USART, 32 Pin, Plastic, SOP |
| MSM82C51A-2JS | 制造商:ROHM Semiconductor 功能描述: |
| MSM82C51A-2RS | 制造商:ROHM Semiconductor 功能描述: 制造商:ROHM Semiconductor 功能描述:USART,Programmable multifunction 制造商:ROHM Semiconductor 功能描述:USART, programmable multi-function communication interface |
| MSM82C53-2 GS-K | 制造商:ROHM Semiconductor 功能描述: |
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