参数资料
型号: DS21354LN
厂商: Maxim Integrated Products
文件页数: 67/124页
文件大小: 0K
描述: IC TXRX E1 1-CHIP 3.3V 100-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
产品变化通告: Product Discontinuation 20/Feb/2012
标准包装: 90
功能: 单芯片收发器
接口: E1,HDLC
电路数: 1
电源电压: 3.14 V ~ 3.47 V
电流 - 电源: 75mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-LQFP
供应商设备封装: 100-LQFP(14x14)
包装: 托盘
包括: 远程和 AIS 警报检测器 / 发生器
DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
47 of 124
SR2: STATUS REGISTER 2 (Address = 07 Hex)
(MSB)
(LSB)
RMF
RAF
TMF
SEC
TAF
LOTC
RCMF
TSLIP
SYMBOL
POSITION
NAME AND DESCRIPTION
RMF
SR2.7
Receive CAS Multiframe. Set every 2ms (regardless if CAS signaling is
enabled or not) on receive multiframe boundaries. Used to alert the host
that signaling data is available.
RAF
SR2.6
Receive Align Frame. Set every 250ns at the beginning of align frames.
Used to alert the host that Si and Sa bits are available in the RAF and
RNAF registers.
TMF
SR2.5
Transmit Multiframe. Set every 2ms (regardless if CRC4 is enabled) on
transmit multiframe boundaries. Used to alert the host that signaling data
needs to be updated.
SEC
SR2.4
One Second Timer. Set on increments of one second based on RCLK. If
CCR2.7=1, then this bit will be set every 62.5ms instead of once a
second.
TAF
SR2.3
Transmit Align Frame. Set every 250ns at the beginning of align
frames. Used to alert the host that the TAF and TNAF registers need to
be updated.
LOTC
SR2.2
Loss of Transmit Clock. Set when the TCLK pin has not transitioned
for one channel time (or 3. ns). Will force the LOTC pin high if enabled
via TCR2.0.
RCMF
SR2.1
Receive CRC4 Multiframe. Set on CRC4 multiframe boundaries; will
continue to be set every 2ms on an arbitrary boundary if CRC4 is
disabled.
TSLIP
SR2.0
Transmit Elastic Store Slip. Set when the elastic store has either
repeated or deleted a frame of data.
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