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參數(shù)資料
型號: XRT83VSH28IB-F
廠商: Exar Corporation
文件頁數(shù): 64/75頁
文件大?。?/td> 0K
描述: IC LIU SH E1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝: 84
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 8/8
規(guī)程: T1,E1,J1
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 225-BGA
供應(yīng)商設(shè)備封裝: 225-BGA(19x19)
包裝: 托盤
其它名稱: 1016-1482
XRT83VSH28IB-F-ND
XRT83VSH28
64
REV. 2.0.0
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
TABLE 31: MICROPROCESSOR REGISTER 0X81H, BIT DESCRIPTION
REGISTER ADDRESS
0X81H
NAME
FUNCTION
REGISTER
TYPE
RESET
VALUE
BIT #
D7
Reserved
R/W
0
D6
Reserved
R/W
0
D5
Reserved
R/W
0
D4
Reserved
R/W
0
D3
Reserved
R/W
0
D2
RXMUTE
Receive Output Mute: Writing a “1” to this bit, mutes receive
outputs at RPOS/RDATA and RNEG/LCV pins to a “0” state for
any channel that detects an RLOS condition.
NOTE: RCLK is not muted.
R/W
0
D1
EXLOS
Extended LOS: Writing a “1” to this bit extends the number of
zeros at the receive input of each channel before RLOS is
declared to 4096 bits. Writing a “0” reverts to the normal mode
(32 bits for E1).
R/W
0
D0
ICT
In-Circuit-Testing: Writing a “1” to this bit configures all the
output pins of the chip in high impedance mode for In-Circuit-
Testing. Setting the ICT bit to “1” is equivalent to connecting
the Hardware ICT pin 88 to ground.
R/W
0
TABLE 32: MICROPROCESSOR REGISTER 0X82H BIT DESCRIPTION
GLOBAL REGISTER (0X82H)
BIT
NAME
FUNCTION
Register
Type
Default
Value
(HW reset)
D7
TxONCNTL Transmit On Control
This register bit grants access to controlling the state of the trans-
mitter outputs.
0 = Control comes from the TxON Register Bits
1 = Control comes from the TxON Hardware Pins
R/W
0
D6
TERCNTL
Receive Termination Select Control
This bit sets the LIU to control the RxTSEL function with either the
individual channel register bit or the global hardware pin.
0 = Control of the receive termination is set to the register bits
1 = Control of the receive termination is set to the RxTSEL hard-
ware pin
R/W
0
D[5:0]
Reserved
These Register Bits are Not Used
R/W
0
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