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参数资料
| 型号： | STIR4200S |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB/lrDA Bridge Controller |
| 中文描述： | 的USB / lrDA桥控制器 |
| 文件页数： | 13/21页 |
| 文件大小： | 308K |
| 代理商： | STIR4200S |
3-4200-D1-2.0-0403
13
STIr4200
USB/IrDA Bridge Controller
O F F I C I A L P R O D U C T D O C U M E N T A T I O N
5.1.3.2.
FIR Receive Frame
The FIR encoding scheme is modified slightly from the standard scheme. The char-
acter 0x7E is used to delineate the BOF and EOF. The STIr4200 escapes three
characters in the data field on receive, 0x7F, 0x7E and 0x7D, which allows the 0x7E
characters used as BOF and EOF to be unique. The 0x7E character can then be
used to delineate the infrared frame boundaries. This hardware escaping in the
data portion is specific to the STIr4200, and the software must un-escape the data
portion of the received frame to restore the original data. Figure 7 summarizes the
FIR receive frame format encoding scheme.
0x7E
0x7E
Data
Data
Data
Data
Data
Data
Data
Data
BOF = Beginning of frame
A
C
I
Address/Control/Information Fields
Special characters must be un-escaped
Escaped Data
Original Data
0x7D 0x5D
0x7D
0x7D 0x5E
0x7E
0x7D 0x5F
0x7F
…
…
MSB CRC
0x7E
0x7E
FCS : 32 bit CRC-IEEE802
EOF - End of frame
…
LSB CRC
Figure 7. FIR Receive Frame Format
相关PDF资料 |
PDF描述 |
|---|---|
| STLR4200 | USB/lrDA Bridge Controller |
| STLR4200S | USB/lrDA Bridge Controller |
| STIR4210 | USB 2.0 Hi-Speed to irDA Bridge |
| STIR4210N | USB 2.0 Hi-Speed to irDA Bridge |
| STIR4220 | USB 2.0 Hi-Speed to irDA Bridge |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STIR4210 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB 2.0 Hi-Speed to irDA Bridge |
| STIR4210N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB 2.0 Hi-Speed to irDA Bridge |
| STIR4220 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB 2.0 Hi-Speed to irDA Bridge |
| STIR4220N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:USB 2.0 Hi-Speed to irDA Bridge |
| STI-SD/128 | 功能描述:存储卡 128MB 2.7 to 3.6V Operation RoHS:否 制造商:Olimex Ltd. 产品:SD 存储容量: 连续读取: 连续写入: 有源模式电流: 工作电源电压: 最大工作温度: 尺寸: |
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