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参数资料
| 型号： | LICAL-ENC-MS001 |
| 厂商： | Linx Technologies Inc |
| 文件页数： | 7/24页 |
| 文件大小： | 0K |
| 描述： | IC ENCODER MS SERIES 20-SSOP |
| 标准包装： | 1,600 |
| 系列： | MS |
| 类型： | 数据编码器 |
| 应用： | 警报系统，通信系统 |
| 电压 - 电源，模拟： | 2.0 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
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11
Encoder Operation
Upon power up, the encoder will set the baud rate based on the state
of the SEL_BAUD lines and then check the SEND line. If it is high, the
encoder will go directly to Send Mode. Otherwise, it will pull the TX_CTNL
line low and go into low-power sleep mode. It will remain asleep until either
the CREATE_ADDR or SEND line goes high. These lines will place the
encoder in either Create Mode or Send Mode as described in the following
sections.
Create Mode
The Create Mode allows the generation of a unique address to ensure the
security of transmission and prevent unintentional operation of devices. The
MS encoder allows 16,777,216 (224 ) possible addresses. Creating the
address is remarkably straightforward.
When the CREATE_ADDR line is pulled high, the encoder randomizes
the Code Word continuously until the CREATE_ADDR line is pulled low.
Once the encoder registers the low line, the Code Word is saved and the
encoder will begin to toggle the MODE_IND line. This will indicate to the
user that the encoder is ready to accept the Control Permissions. Control
Permissions are set by activating the data lines that the user wants the
encoder to have the authority to operate. Pulling the CREATE_ADDR line
high again will cause the encoder to save the Control Permissions and go
back to sleep. The Code Word will be sent with every transmission when
the SEND line is pulled high, but the encoder can only activate the decoder
data lines that are authorized by the Control Permissions.
The Code Word is learned by an MS Series decoder by placing the
decoder into Learn Mode and sending a transmission from the encoder.
Please refer to the MS Series Decoder Data Guide for full details.
The CREATE_ADDR line can be tied to a button or contact point accessible
by the user. With a simple press, the user will generate a unique address
that should never again require changing. Some designers may prefer to
set a code during production and not provide for change by the user.
The MODE_IND line allows for the connection of a LED or other device to
indicate to the user that the encoder is in Create Mode. Once the CREATE_
ADDR line goes high and the encoder enters Create Mode, the MODE_IND
line will go high and stay high until the CREATE_ADDR line goes low. The
MODE_IND line is capable of sourcing up to 25mA of current.
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