參數(shù)資料
型號: XRT86VL3x
廠商: Exar Corporation
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): 42/153頁
文件大小: 1316K
代理商: XRT86VL3X
XRT86VL3X
35
T1/E1/J1 FRAMER/LIU COMBO - ARCHITECTURE DESCRIPTION
REV. 1.2.2
4.1.3
Configure the DS1 Transmit Overhead Input Interface module as source of the Signaling
Framing (Fs) bits in N or SLC96 framing format mode
The Fs bits in SLC96 and N framing format mode can be inserted from:
DS1 Transmit Overhead Input Interface Block
DS1 Transmit HDLC Controller
DS1 Transmit Serial Input Interface.
The Transmit Data Link Source Select bits of the Transmit Data Link Select Register (TDLSR) controls the
insertion of data link bits into the Fs bits in N or SLC96 framing format mode. The table below shows
configuration of the Transmit Data Link Source Select bits of the Transmit Data Link Select Register (TDLSR).
If the Transmit Data Link Source Select bits of the Transmit Data Link Select Register are set to 10, the
Transmit Overhead Input Interface Block becomes input source of the Fs bits.
F
IGURE
35. DS1 T
RANSMIT
O
VERHEAD
I
NPUT
I
NTERFACE
T
IMING
IN
ESF F
RAMING
F
ORMAT
MODE
TRANSMIT DATA LINK SELECT REGISTER (TDLSR) (ADDRESS = 0XN10AH)
B
IT
N
UMBER
B
IT
N
AME
B
IT
T
YPE
B
IT
D
ESCRIPTION
1-0
Transmit Data Link
Source Select
R/W
00 - The Signaling Framing bits are inserted into the framer through either
the LAPD controller or the SLC96 buffer.
01 - The Signaling Framing bits are inserted into the framer through the
Transmit Serial Data input Interface via the TxSer_n pins.
10 - The Signaling Framing bits are inserted into the framer through the
Transmit Overhead Input Interface via the TxOH_n pins.
11 - The Signaling Framing bits are forced to one by the framer.
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