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參數(shù)資料
型號: XRT83SH314IB-F
廠商: Exar Corporation
文件頁數(shù): 78/101頁
文件大小: 0K
描述: IC LIU T1/E1/J1 14CH 304TBGA
標準包裝: 27
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 14/14
規(guī)程: T1,E1,J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 304-BBGA
供應(yīng)商設(shè)備封裝: 304-PBGA(31x31)
包裝: 托盤
XRT83SH314
74
14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.4
TABLE 28: MICROPROCESSOR REGISTER 0X02H BIT DESCRIPTION
CHANNEL 0-13 (0X02H-0XD2H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
INVQRSS
QRSS inversion
INVQRSS is used to invert the transmit QRSS pattern set by the
TxTEST[2:0] bits. By default, INVQRSS is disabled and the QRSS
will be transmitted with normal polarity.
0 = Disabled
1 = Enabled
R/W
0
D6
D5
D4
TxTEST2
TxTEST1
TxTEST0
Test Code Pattern
TxTEST[2:0] are used to select a diagnostic test pattern to the line
(transmit outputs).
0XX = No Pattern
100 = Tx QRSS
101 = Tx TAOS
110 = Reserved
111 = Reserved
R/W
0
D3
TxOn
Transmit ON/OFF
Upon power up, the transmitters are powered off. This bit is used
to turn the transmitter for this channel On or Off if the TxON pin is
pulled "High". If the TxON pin is pulled "Low", all 14 transmitters
are powered off and set to high-impedance.
0 = Transmitter is Powered OFF
1 = Transmitter is Powered ON
R/W
0
D2
D1
D0
LOOP2
LOOP1
LOOP0
Loopback Diagnostic Select
LOOP[2:0] are used to select the loopback mode.
0XX = No Loopback
100 = Dual Loopback
101 = Analog Loopback
110 = Remote Loopback
111 = Digital Loopback
R/W
0
TABLE 29: MICROPROCESSOR REGISTER 0X03H BIT DESCRIPTION
CHANNEL 0-13 (0X03H-0XD3H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
D6
Reserved
These bits are reserved
R/W
0
D5
CODES
Encoding/Decoding Select (Single Rail Mode Only)
0 = HDB3 (E1), B8ZS (T1)
1 = AMI Coding
R/W
0
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