参数资料
型号: IDT82V2044EPFG
厂商: IDT, Integrated Device Technology Inc
文件页数: 35/73页
文件大小: 0K
描述: IC LIU T1/E1 QUAD SHORT 128-TQFP
标准包装: 15
类型: 线路接口装置(LIU)
规程: E1
电源电压: 3.13 V ~ 3.47 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
其它名称: 82V2044EPFG
40
INDUSTRIAL
TEMPERATURE RANGES
QUAD CHANNEL T1/E1/J1 SHORT HAUL LINE INTERFACE UNIT
4.2.4
RECEIVE PATH CONTROL REGISTERS
Table-32 RCF0: Receiver Configuration Register 0
(R/W, Address = 07H,47H,87H,C7H)
Symbol
Bit
Default
Description
-
7-5
000
Reserved
R_OFF
4
0
Receiver power down enable
= 0: Receiver power up
= 1: Receiver power down
RD_INV
3
0
Receive data invert
= 0: data on RDn or RDPn/RDNn is active high
= 1: data on RDn or RDPn/RDNn is active low
RCLK_SEL
2
0
Receive clock edge select (this bit is ignored in slicer mode)
= 0: data on RDn or RDPn/RDNn is updated on the rising edges of RCLKn
= 1: data on RDn or RDPn/RDNn is updated on the falling edges of RCLKn
R_MD[1:0]
1-0
00
Receiver path decoding selection
= 00: receive data is HDB3 (E1) / B8ZS (T1/J1) decoded and output on RDn with single rail NRZ format
= 01: receive data is AMI decoded and output on RDn with single rail NRZ format
= 10: decoder is bypassed, re-timed dual rail data with NRZ format output on RDPn/RDNn (dual rail mode with
clock recovery)
= 11: both CDR and decoder blocks are bypassed, slicer data with RZ format output on RDPn/RDNn (slicer mode)
Table-33 RCF1: Receiver Configuration Register 1
(R/W, Address = 08H,48H,88H,C8H)
Symbol
Bit
Default
Description
-7
0
Reserved
EQ_ON
6
0
= 0: receive equalizer off
= 1: receive equalizer on (LOS programming enabled)
-
5
0
Reserved. Should be 0 for normal operation.
LOS[4:0]
4-0
10101
LOS Clear Level (dB)
LOS Declare Level (dB)
00000
0
<-4
00001
>-2
<-6
00010
>-4
<-8
00011
>-6
<-10
00100
>-8
<-12
00101
>-10
<-14
00110
>-12
<-16
00111
>-14
<-18
01000
>-16
<-20
01001
>-18
<-22
01010
>-20
<-24
01011 - 11111
Reserved
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