参数资料
型号: DS21Q42T+
厂商: Maxim Integrated Products
文件页数: 52/116页
文件大小: 0K
描述: IC FRAMER ENHANCED T1 4X 128TQFP
标准包装: 72
控制器类型: T1 调帧器
接口: 并行/串行
电源电压: 2.97 V ~ 3.63 V
电流 - 电源: 75mA
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-LQFP(14x20)
包装: 管件
DS21Q42
40 of 116
RIR2: RECEIVE INFORMATION REGISTER 2 (Address=31 Hex)
(MSB)
(LSB)
RLOSC
RCLC
TESF
TESE
TSLIP
RBLC
RPDV
TPDV
SYMBOL
POSITION
NAME AND DESCRIPTION
RLOSC
RIR2.7
Receive Loss of Sync Clear. Set when the framer achieves
synchronization; will remain set until read.
RCLC
RIR2.6
Receive Carrier Loss Clear. Set when the carrier signal is
restored; will remain set until read. See Table 7-1.
TESF
RIR2.5
Transmit Elastic Store Full. Set when the transmit elastic
store buffer fills and a frame is deleted.
TESE
RIR2.4
Transmit Elastic Store Empty. Set when the transmit elastic
store buffer empties and a frame is repeated.
TSLIP
RIR2.3
Transmit Elastic Store Slip Occurrence. Set when the
transmit elastic store has either repeated or deleted a frame.
RBLC
RIR2.2
Receive Blue Alarm Clear. Set when the Blue Alarm (AIS)
is no longer detected; will remain set until read. See Table 7-
1.
RPDV
RIR2.1
Receive Pulse Density Violation. Set when the receive data
stream does not meet the ANSI T1.403 requirements for pulse
density.
TPDV
RIR2.0
Transmit Pulse Density Violation. Set when the transmit
data stream does not meet the ANSI T1.403 requirements for
pulse density.
RIR3: RECEIVE INFORMATION REGISTER 3 (Address=10 Hex)
(MSB)
(LSB)
---
LORC
-
RAIS-CI
SYMBOL
POSITION
NAME AND DESCRIPTION
RIR3.7
Not Assigned. Could be any value when read.
RIR3.6
Not Assigned. Could be any value when read.
RIR3.5
Not Assigned. Could be any value when read.
LORC
RIR3.4
Loss of Receive Clock. Set when the RCLK pin has not
transitioned for at least 2 us (3 us 1 us).
RIR3.3
Not Assigned. Could be any value when read.
RIR3.2
Not Assigned. Could be any value when read.
RIR3.1
Not Assigned. Could be any value when read.
RAIS-CI
RIR3.0
Receive AIS-CI Detect. Set when the AIS-CI pattern is
detected.
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