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参数资料
型号： XRT75R12DIB-L
厂商： Exar Corporation
文件页数： 119/133页
文件大小： 0K
描述： IC LIU E3/DS3/STS-1 12CH 420TBGA
标准包装： 40
类型： 线路接口装置（LIU）
驱动器/接收器数： 12/12
规程： DS3，E3，STS-1
电源电压： 3.135 V ~ 3.465 V
安装类型： 表面贴装
封装/外壳： 420-LBGA 裸露焊盘
供应商设备封装： 420-TBGA（35x35）
包装： 托盘
XRT75R12D
82
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
1
STS-1/
DS3_n
R/W
STS-1/DS3 Mode Select - Channel_n:
This READ/WRITE bit-field, along with Bit 2 (E3_n) is used to configure a
given channel into either the DS3, E3 or STS-1 Modes.
This bit-field is ignored if Bit 2 (E3_n) has been set to "1".
If Bit 2 (E3_n) is a 0:
0 - Configures Channel_n to operate in the DS3 Mode.
1 - Configures Channel_n to operate in the STS-1 Mode .
0
SR/DR_n
R/W
Single-Rail/Dual-Rail Select - Channel_n:
This READ/WRITE bit-field is used to configure Channel_n to operate in
either the Single-Rail or Dual-Rail Mode.
If the user configures the Channel to operate in the Single-Rail Mode, the
following will happen.
The B3ZS/HDB3 Encoder and Decoder blocks (within Channel_n) will be
enabled.
The Transmit Section of Channel_n will accept all of the outbound data
(from the System-side Equipment) via the TxPOS_n input pin.
The Receive Section of each channel will output all of the recovered data
(to the System-side Equipment) via the RxPOS_n output pin.
The corresponding RNEG/LCV_n output pin will now function as the LCV
(Line Code Violation or Excessive Zero Event) indicator output pin for
Channel_n.
If the user configures Channel_n to operate in the Dual-Rail Mode, the fol-
lowing will happen.
The B3ZS/HDB3 Encoder and Decoder blocks of Channel_n will be
disabled.
The Transmit Section of Channel_n will be configured to accept positive-
polarity data via the TxPOS_n input pin and negative-polarity data via the
TxNEG_n input pin.
The Receive Section of Channel_n will pulse the RxPOS_n output pin
"High" (for one period of RCLK_n) for each time a positive-polarity pulse is
received via the RTIP_n/RRING_n input pins.
Likewise, the Receive
Section of each channel will pulse the RxNEG_n output pin "High" (for
one period of RxCLK_n) for each time a negative-polarity pulse is
received via the RTIP_n/RRING_n input pins.
0 - Configures Channel_n to operate in the Dual-Rail Mode.
1 - Configures Channel_n to operate in the Single-Rail Mode.
CHANNEL CONTROL REGISTER - CHANNEL N ADDRESS LOCATION = 0XM6 (M = 0-5 & 8-D)
BIT NUMBER
NAME
TYPE
DESCRIPTION
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XRT75R12IB-F 功能描述:外围驱动器与原件 - PCI 12 Channel 3.3V-5V temp -45 to 85C RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray
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