參數(shù)資料
型號(hào): DS2196
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
中文描述: Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
文件頁數(shù): 116/157頁
文件大小: 734K
代理商: DS2196
DS2196
116 of 157
opening or closing flag (01111110) or an abort signal (11111111). If enabled via CCR2.0, the DS2196
will automatically look for five 1’s in a row, followed by a 0. If it finds such a pattern, it will
automatically remove the zero. If the zero destuffer sees six or more 1’s in a row followed by a 0, the 0 is
not removed. The CCR2.0 bit should always be set to a 1 when the DS2196 is extracting the FDL. More
on how to use the DS2196 in FDL applications in this legacy support mode is covered in a separate
Application Note.
RFDLA: RECEIVE FDL REGISTER from FRAMER A (Address = 28 Hex)
RFDLB: RECEIVE FDL REGISTER from FRAMER B (Address = C8 Hex)
(MSB)
RFDL7
(LSB)
RFDL0
RFDL6
RFDL5
RFDL4
RFDL3
RFDL2
RFDL1
SYMBOL
RFDL7
RFDL0
POSITION
RFDL.7
RFDL.0
NAME AND DESCRIPTION
MSB of the Received FDL Code
LSB of the Received FDL Code
The Receive FDL Register (RFDL) reports the incoming Facility Data Link (FDL) or the incoming Fs
bits. The LSB is received first.
RMTCH1A: RECEIVE FDL MATCH REGISTER 1 FRAMER A
(Address = 29 Hex)
RMTCH2A: RECEIVE FDL MATCH REGISTER 2 FRAMER A
(Address = 2A Hex)
RMTCH1B: RECEIVE FDL MATCH REGISTER 1 FRAMER B
(Address = C9 Hex)
RMTCH2B: RECEIVE FDL MATCH REGISTER 2 FRAMER B
(Address = CA Hex)
(MSB)
RMFDL7
(LSB)
RMFDL0
RMFDL6
RMFDL5
RMFDL4
RMFDL3
RMFDL2
RMFDL1
SYMBOL
RMFDL7
POSITION
RMTCH1A.7
RMTCH2A.7
RMTCH1B.7
RMTCH2B.7
RMTCH1A.0
RMTCH2A.0
RMTCH1B.0
RMTCH2B.0
NAME AND DESCRIPTION
MSB of the FDL Match Code
RMFDL0
LSB of the FDL Match Code
When the byte in the Receive FDL Register matches either of the two Receive Match Registers
(RMTCH1/RMTCH2), SR2.2 will be set to a 1 and the INT will go active if enabled via IMR2.2.
18.2.3 Transmit Section
The transmit section will shift out into the T1 data stream, either the FDL (in the ESF framing mode) or
the Fs bits (in the D4 framing mode) contained in the Transmit FDL register (TFDL). When a new value
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