参数资料
型号: XRT75R12DIB-L
厂商: Exar Corporation
文件页数: 124/133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
86
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
REV. 1.0.3
Each channel contains a dedicated 16 bit PRBS error counter. When enabled this counter will accumulate
PRBS errors (as well as excess zeros and LCVs). The LS byte will "carry" a one over to the MS byte each time
it rolls over from 255 to zero until the MS byte also reaches 255. When both counters reach 255, no further
errors will be accumulated and "all ones" will signify an overflow condition.
The counter can be read while in the active count mode. Either register may be read "on the fly" and the other
byte will be simultaneously transferred into the channel’s Error Holding register. The holding register may then
be read to supply the Host with a correct 16 bit count (as of the instant of reading). With this mechanism, the
Host could rapidly cycle thru reading all twelve counters in order (storing the read byte in scratch RAM) and
then come back and read the second byte from each holding register to form the 16 bit accumulation in the
Host system.
0xE-
CIE
CIS
0xF-
TABLE 42: ERROR COUNTER HOLDING REGISTER - CHANNEL N ADDRESS LOCATION = 0XMC (M = 0-5 & 8-D)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Msb
Ls bit
R/W
TABLE 41: XRT75R12D REGISTER MAP SHOWING ERROR COUNTER HOLDING REGISTERS (EH_N) (N = [0:11])
ADDRESS
LOCATION
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
相关PDF资料
PDF描述
XRT75R12IB-L IC LIU E3/DS3/STS-1 12CH 420TBGA
XRT75VL00DIV IC LIU E3/DS3/STS-1 1CH 52TQFP
XRT75VL00IV-F IC LIU E3/DS3/STS-1 1CH 52TQFP
XRT79L71IB-F IC LIU/FRAMER DS3/E3 1CH 208BGA
XRT81L27IV-F IC LIU EI 7CH 3.3V 128TQFP
相关代理商/技术参数
参数描述
XRT75R12ES 功能描述:时钟合成器/抖动清除器 12CH T3/E3/STS1LIUJA 3.3V W/REDUNDANCY RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel
XRT75R12IB 功能描述:外围驱动器与原件 - PCI 12CH E3/DS3/STS W/JITTER R3 TECH 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
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
XRT75R12IB-L 功能描述:LIN 收发器 Attenuator RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8
XRT75VL00 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR