参数资料
型号: DS2148T+
厂商: Maxim Integrated Products
文件页数: 32/73页
文件大小: 0K
描述: IC LIU E1/T1/J1 5V 44-TQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
类型: 线路接口装置(LIU)
驱动器/接收器数: 1/1
规程: T1/E1/J1
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 44-TQFP
供应商设备封装: 44-TQFP(10x10)
包装: 托盘
产品目录页面: 1429 (CN2011-ZH PDF)
DS2148/DS21Q48
38 of 73
RIR2 (09H): RECEIVE INFORMATION REGISTER 2
(MSB)
(LSB)
RL3
RL2
RL1
RL0
N/A
ARLB
SEC
SYMBOL
POSITION
DESCRIPTION
RL3
(real time)
RIR2.7
Receive Level Bit 3. See Table 5-2.
RL2
(real time)
RIR2.6
Receive Level Bit 2. See Table 5-2.
RL1
(real time)
RIR2.5
Receive Level Bit 1. See Table 5-2.
RL0
(real time)
RIR2.4
Receive Level Bit 0. See Table 5-2.
N/A
RIR2.3
Not Assigned. Could be any value when read.
N/A
RIR2.2
Not Assigned. Could be any value when read.
ARLB
(real time)
RIR2.1
Automatic Remote Loopback Detected. This bit will be set to
a one when the automatic Remote Loopback (RLB) circuitry
has detected the presence of a loop up code for 5 seconds. It
will remain set until the automatic RLB circuitry has detected
the loop down code for 5 seconds. See Section 4 for more
details. This bit will be forced low when the automatic RLB
circuitry is disabled (CCR6.5 = 0).
SEC
(latched)
RIR2.0
One-Second Timer. This bit will be set to a one on one-second
boundaries as timed by the device based on the RCLK. It will
be cleared when read.
Table 5-2. Receive Level Indication
RL3
RL2
RL1
RL0
RECEIVE LEVEL
(dB)
0
< -2.5
0
1
-2.5 to -5.0
0
1
0
-5.0 to -7.5
0
1
-7.5 to -10.0
0
1
0
-10.0 to -12.5
0
1
0
1
-12.5 to -15.0
0
1
0
-15.0 to -17.5
0
1
-17.5 to -20.0
1
0
-20.0 to -22.5
1
0
1
-22.5 to -25.0
1
0
1
0
-25.0 to -27.5
1
0
1
-27.5 to -30.0
1
0
-30.0 to -32.5
1
0
1
-32.5 to -35.0
1
0
-35.0 to -37.5
1
> -37.5
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