參數(shù)資料
型號: STLR4200
廠商: Electronic Theatre Controls, Inc.
英文描述: USB/lrDA Bridge Controller
中文描述: 的USB / lrDA橋控制器
文件頁數(shù): 10/21頁
文件大?。?/td> 308K
代理商: STLR4200
10
3-4200-D1-2.0-0403
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. IR FRAMING FORMATS
5.1.
Transmit Frame Format
5.1.1.
SIR Transmit Frame
The SIR rates include 2.4, 9.6, 19.2, 38.4, 57.6, and 115.2 Kbps. For SIR, the frame
presented to the USB bulk transmit interface must be organized in the following
fashion as shown in Figure 4.
0x55
0xAA
LSB size
MSB size
0xC0
0xC0
0xC0
0xC0
0xC0
Data
Data
Data
Data
Data
Data
Data
BOF = Beginning of frame characters
The number of beginning of frame
characters is determined during the
negotiation stage.
Header ID
A
C
I
Address/Control/Information Fields
Special characters must be escaped
Original Data
0xC0
0xC1
0x7D
Escaped Data
0x7D 0xE0
0x7D 0xE1
0x7D 0x5D
LSB CRC
MSB CRC
0xC1
FCS : 16 bit CRC-CCITT
EOF - End of frame
Number of following bytes
Figure 4. SIR Transmit Frame Format
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