参数资料
型号: XRT91L34IV
厂商: Exar Corporation
文件页数: 20/38页
文件大小: 0K
描述: IC MULTIRATE CDR QUAD 128LQFP
标准包装: 72
类型: 时钟和数据恢复(CDR),扇出缓冲器(分配),多路复用器
PLL:
主要目的: SONET/SDH,STS,STM
输入: LVDS,LVPECL
输出: LVDS,LVPECL
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 是/是
频率 - 最大: 622.08MHz
电源电压: 1.71 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x14)
包装: 托盘
XRT91L34
27
REV. 1.0.1
QUAD CHANNEL MULTIRATE STS-12/3/1 AND STM-4/1/0 SONET/SDH CDR
COMMON CONTROL REGISTERS
TABLE 9: MICROPROCESSOR INTERFACE REGISTER 0X00 BIT DESCRIPTION
GLOBAL CONTROL REGISTER (0X00)
BIT
NAME
FUNCTION
Regis-
ter
Type
Default
Value
(HW Reset)
D7
Reserved
This Register Bit is Not Used
RO
0
D6
Reserved
This Register Bit is Not Used
RO
0
D5
Reserved
This Register Bit is Not Used
RO
0
D4
DLOSDIS
DLOS (Digital Loss of Signal) Disable
This global bit is used to disable the channelized internal DLOS
monitoring and automatic muting of RXDO[3:0]P/N recovered data
output pins upon DLOS detection.
"0" = Monitor & Mute recovered data upon LOS declaration
"1" = Disable internal DLOS monitoring
R/W
0
D3
Reserved
This Register Bit is Not Used
RO
0
D2
MINT_EN
Master Interrupt Enable
"0" = Disables Interrupt generation
"1" = Enables Interrupt generation
R/W
0
D1
CDRREFSEL Clock and Data Recovery Unit Reference Frequency Select
This bit is used to select the clock input reference.
"0" = 77.76 MHz reference frequency support
"1" = 19.44 MHz reference frequency support
R/W
0
D0
SWRST
Software Reset
A "0" to "1" transition will asynchronously reset the device and all
register bit settings to their default state. This bit will automatically
reset itself to "0". User does not have to write "0" to this bit to resume
normal operation.
"0" = Normal Operation
"1" = Resets all registers to default values
R/W
0
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