参数资料
型号: XRT83SL34IV
厂商: Exar Corporation
文件页数: 64/80页
文件大小: 0K
描述: IC LIU T1/E1/J1 QUAD 128TQFP
标准包装: 72
类型: 线路接口装置(LIU)
驱动器/接收器数: 4/4
规程: T1,E1,J1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-TQFP(14x20)
包装: 托盘
XRT83SL34
QUAD T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.0
64
D3
MCLKRATE
Master clock Rate Select: The state of this bit programs the
Master Clock Synthesizer to generate the T1/J1 or E1 clock.
The Master Clock Synthesizer will generate the E1 clock when
MCLKRATE = “0”, and the T1/J1 clock when MCLKRATE =
“1”.
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
(175+75 bits for T1 and 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 37: MICROPROCESSOR REGISTER #66, BIT DESCRIPTION
REGISTER ADDRESS
1000010
NAME
FUNCTION
REGISTER
TYPE
RESET
VALUE
BIT #
D7
GAUGE1
Wire Gauge Selector Bit 1:
This bit together with bit D6 are used to select wire gauge size
as shown in the table below.
R/W
0
D6
GAUGE0
Wire Gauge Selector Bit 0:
See bit D7.
R/W
0
D5
TXONCNTL
Transmit On Control:
In Host mode, setting this bit to “1” transfers the control of the
Transmit On/Off function to the TXON_n Hardware control
pins.
NOTE: This provides a faster On/Off capability for redundancy
application.
R/W
0
D4
TERCNTL
Termination Control.
In Host mode, setting this bit to “1” transfers the control of the
RXTSEL to the RXTSEL Hardware control pin.
NOTE: This provides a faster On/Off capability for redundancy
application.
R/W
0
TABLE 36: MICROPROCESSOR REGISTER #65, BIT DESCRIPTION
GAUGE1
0
1
0
GAUGE0
0
1
0
1
Wire Size
22 and 24 Gauge
26 Gauge
24 Gauge
22 Gauge
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