參數(shù)資料
型號: XRT75R12IB
廠商: Exar Corporation
文件頁數(shù): 80/90頁
文件大?。?/td> 0K
描述: IC LIU E3/DS3/STS-1 12CH 420TBGA
標準包裝: 40
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 12/12
規(guī)程: DS3,E3,STS-1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 420-LBGA 裸露焊盤
供應(yīng)商設(shè)備封裝: 420-TBGA(35x35)
包裝: 托盤
XRT75R12
78
REV. 1.0.4
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
4
RLB_n
R/W
Loop-Back Select - RLB Bit - Channel_n:
This READ/WRITE bit-field along with the corresponding LLB_n bit-field is
used to configure a given channel into various loop-back modes ass shown
by the following table.
3
LLB_n
R/W
Loop-Back Select - LLB Bit-field - Channel_n:
See the table (above) for RLB_n.
2
E3_n
R/W
E3 Mode Select - Channel_n:
This READ/WRITE bit-field, along with Bit 1 (STS-1/DS3_n) within this reg-
ister, is used to configure a given channel into either the DS3, E3 or STS-1
Modes.
0 - Configures Channel_n to operate in either the DS3 or STS-1 Modes,
depending upon the state of Bit 1 (STS-1/DS3_n) within this same register.
1- Configures Channel_n to operate in the E3 Mode.
TABLE 40: CHANNEL CONTROL REGISTER - CHANNEL n ADDRESS LOCATION = 0XM6
(n = [0:11] & M= 0-5 & 8-D)
BIT NUMBER
NAME
TYPE
DESCRIPTION
Loop-back M ode
Digital Local Loop-back Mode
Analog Local Loop-back Mode
R em ote Loop-back Mode
Norm al (No Loop-back) Mode
RLB_n
1
0
1
0
LLB_n
1
0
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