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参数资料
型号： IDT82P2828BHG
厂商： IDT, Integrated Device Technology Inc
文件页数： 103/154页
文件大小： 0K
描述： IC LIU T1/J1/E1 28+1CH 640-PBGA
标准包装： 5
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： 640-BGA 裸露焊盘
供应商设备封装： 640-PBGA-EP（31x31）
包装： 托盘
其它名称： 82P2828BHG
IDT82P2828
28(+1) CHANNEL HIGH-DENSITY T1/E1/J1 LINE INTERFACE UNIT
Functional Description
52
February 6, 2009
3.5.7
RECEIVE /TRANSMIT MULTIPLEX FUNCTION (RMF / TMF)
INDICATION
3.5.7.1 RMFn Indication
In Receive Single Rail NRZ Format mode, the RDNn/RMFn pin is
used as RMFn. In Receive Dual Rail Sliced mode, the RCLKn/RMFn pin
is used as RMFn. Refer to Table-3 Multiplex Pin Used in Receive
System Interface for details.
RMFn can indicate the status of PRBS/ARB, LAIS, LEXZ, LBPV,
LEXZ + LBPV, LLOS, output recovered clock (RCLK) or XOR output of
positive and negative sliced data, as selected by the RMF_DEF[2:0] bits
(b7~5, RCF1,...). Refer to Table-21 for details.
Table-21 RMFn Indication
RMF_DEF[2:0]
Indication On RMF
Details
000
PRBS/ARB
RMFn is high if PRBS/ARB is detected in synchronization in the receive path. During the synchronization, RMFn goes
low for a T1/E1 clock cycle if a PRBS/ARB error is detected. RMFn is low if PRBS/ARB is out of synchronization.
Refer to Section 3.5.5 PRBS, QRSS, ARB and IB Pattern Generation and Detection.
001
Line Alarm Indication
Signal (LAIS)
RMFn is high if AIS is detected in the receive path and low if it is cleared. This indication corresponds to the LAIS_S
bit (b6, STAT1,...). Refer to Section 3.5.4 Alarm Indication Signal (AIS) Detection and Generation.
010
XOR result of positive
and negative sliced data
RMFn outputs XOR data of positive and negative sliced data.
011
recovered clock (RCLK) RMFn outputs the recovered clock as RCLKn. All the description about RCLKn is applicable for RMFn.
100
Line Excessive Zeroes
(LEXZ)
RMFn goes high for a T1/E1 clock cycle if an EXZ is detected in the receive path, otherwise it is low. Refer to
Section 3.5.2 Excessive Zeroes (EXZ) Detection.
101
Line Bipolar Violation
(LBPV)
RMFn goes high for a T1/E1 clock cycle if a BPV/CV is detected in the receive path, otherwise it is low. Refer to
Section 3.5.1 Bipolar Violation (BPV) / Code Violation (CV) Detection and BPV Insertion.
110
LEXZ + LBPV
RMFn goes high for a T1/E1 clock cycle if an EXZ or a BPV/CV is detected in the receive path, otherwise it is low.
111
Line Loss of Signal
(LLOS)
RMFn is high if LOS is detected in the receive path and low if it is cleared. This indication corresponds to the LLOS_S
bit (b0, STAT0,...). Refer to Section 3.5.3.1 Line LOS (LLOS).
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