參數(shù)資料
型號: XRT86VL34_1
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): 23/63頁
文件大?。?/td> 402K
代理商: XRT86VL34_1
XRT86VL34
20
REV. V1.2.0
QUAD T1/E1/J1 FRAMER/LIU COMBO - HARDWARE DESCRIPTION
RxSERCLK0/
RxLINECLK0
RxSERCLK1/
RxLINECLK1
RxSERCLK2/
RxLINECLK2
RxSERCLK3/
RxLINECLK3
A7
D13
D15
T17
I/O
12
Receive Serial Clock Signal (RxSERCLKn) / Receive Line
Clock (RxLINECLKn):
The exact function of these pins depends on the mode of oper-
ation selected, as described below.
In Base-Rate Mode (1.544MHz/2.048MHz) - RxSERCLKn:
These pins are used as the receive serial clock on the system
side interface which can be configured as either input or output.
The receive serial interface outputs data on RxSERn on the ris-
ing edge of RxSERCLKn.
When RxSERCLKn is configured as Input:
These pins will be inputs if the slip buffer on the Receive path is
enabled. System side equipment must provide a 1.544MHz
clock rate to this input pin for T1 mode of operation, and
2.048MHz clock rate in E1 mode.
When RxSERCLKn is configured as Output:
These pins will be outputs if slip buffer is bypassed. The receive
framer will output a 1.544MHz clock rate in T1 mode of opera-
tion, and a 2.048MHz clock rate in E1 mode.
DS1/E1 High-Speed Backplane Modes* - (RxSERCLK as
INPUT ONLY)
In this mode, this pin must be used as the high-speed input
clock for the backplane interface to output high-speed or multi-
plexed data on the RxSERn pin. The frequency of RxSERCLK
is presented in the table below.
N
OTES
:
1.
*High-speed backplane modes include (For T1/E1)
2.048MVIP,
4.096MHz,
HMVIP, H.100, Bit-multiplexed modes, and (For T1
only) 12.352MHz Bit-multiplexed mode.
For DS1 high-speed modes, the DS-0 data is mapped
into an E1 frame by ignoring every fourth time slot
(don’t care).
8.192MHz,
16.384MHz
2.
RECEIVE SYSTEM SIDE INTERFACE
S
IGNAL
N
AME
B
ALL
#
T
YPE
O
UTPUT
D
RIVE
(
M
A)
D
ESCRIPTION
O
PERATION
M
ODE
F
REQUENCY
OF
R
X
SERCLK(MH
Z
)
2.048MVIP non-multiplexed
2.048
4.096MHz non-multiplexed
4.096
8.192MHz non-multiplexed
8.192
12.352MHz Bit-multiplexed
(DS1 ONLY)
12.352
16.384MHz Bit-multiplexed
16.384
16.384 HMVIP Byte-multiplexed
16.384
16.384 H.100 Byte-multiplexed
16.384
相關PDF資料
PDF描述
XRT86VL34 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL34_2 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL34IB Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL38_2 Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
XRT86VL38IB Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0
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