參數(shù)資料
型號: XRT86VL34_2
廠商: Exar Corporation
元件分類: 通信及網(wǎng)絡
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): 31/156頁
文件大小: 816K
代理商: XRT86VL34_2
XRT86VL34
26
REV. V1.2.0
QUAD T1/E1/J1 FRAMER/LIU COMBO - T1 REGISTER DESCRIPTION
T
ABLE
11: R
ECEIVE
S
IGNALING
& D
ATA
L
INK
S
ELECT
R
EGISTER
(RSDLSR) H
EX
A
DDRESS
: 0
X
n10C
B
IT
F
UNCTION
T
YPE
D
EFAULT
D
ESCRIPTION
-O
PERATION
7
Reserved
-
-
Reserved
6
Reserved
-
-
Reserved
5-4
RxDLBW[1:0]
R/W
00
Receive Data Link Bandwidth[1:0]:
These two bits select the bandwidth for data link message reception.
Data Link messages can be received at a 4kHz rate or at a 2kHz rate
on odd or even framing bits depending on the configuration of these
bits. The table below specifies the different configurations.
N
OTE
:
This bit only applies to T1 ESF framing format. For SLC96 and
N framing formats, FDL is a 4kHz data link channel. For T1DM,
FDL is a 8kHz data link channel.
3-2
RxDE[1:0]
R/W
00
Receive D/E Time-Slot Destination Select[1:0]:
These bits permit the user to specify the “destination” circuitry that will
receive and process the D/E-Time-slot within the incoming T1 data-
stream.
R
X
DLBW[1:0]
R
ECEIVE
D
ATA
L
INK
B
ANDWIDTH
S
ELECTED
00
Received Data link bits are extracted in every
frame. Facility Data Link Bits (FDL) is a 4kHz data
link channel.
01
Received Data link bits are extracted in every
other frame. Facility Data Link Bits (FDL) is a 2kHz
data link channel carried by odd framing bits
(Frames 1,5,9.....)
10
Received Data link bits are extracted in every
other frame. Facility Data Link Bits (FDL) is a 2kHz
data link channel carried by even framing bits
(Frames 3,7,11.....)
11
Reserved
R
X
DE[1:0]
D
ESTINATION
C
IRCUITRY
FOR
R
ECEIVE
D/E T
IME
-S
LOT
00
RxSER_n output pin
- The D/E time slots are out-
put to the receive serial data output pin (RxSER_n)
pin.
01
Receive LAPD Controller Block
- The D/E time
slots are output to Receive LAPD Controller Block.
10
Reserved
11
RxFRTD_n output pin
- The D/E time slots are
output to the receive fractional output pin.
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