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参数资料
型号： DS3112N
厂商： DALLAS SEMICONDUCTOR
元件分类： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PBGA256
封装： 27 X 27 MM, PLASTIC, BGA-256
文件页数： 89/134页
文件大小： 900K
代理商： DS3112N
DS3112
58 of 134
E3 Alarm Criteria Table 5.3B
Alarm/
Condition
Definition
Set Criteria
Clear Criteria
AIS
Alarm Indication Signal
Unframed all ones
4 or less zeros in 2
consecutive 1536 bit
frames
5 or more zeros in 2
consecutive 1536 bit frames
LOS
Loss Of Signal
192 consecutive zeros
No EXZ events over a 192
bit window that starts with
the first one received
LOF
Loss Of Frame
Too many FAS errors
4 consecutive bad FAS
3 consecutive good FAS
RAI
Remote Alarm Indication
inactive: bit 11 of the frame = 0
active: bit 11 of the frame = 1
Bit 11 = 1 for 4
consecutive frames
(6144 bits / 179 us)
Bit 11 = 0 for 4 consecutive
frames (6144 bits / 179 us)
Register Name:
T3E3INFO
Register Description:
T3/E3 Information Register
Register Address:
16h
Bit #
765
43210
Name
n/a
SEFE
EXZ
MBE
FBE
ZSCD
COFA
Default
---
-----
Bit #
151413
121110
9
8
Name
n/a
RAIC
AISC
LOFC
LOSC
T3AIC
E3Sn
Default
---
-----
Note: Bits that are underlined are read only; all other bits are read-write.
Note: The status bits in the T3E3INFO cannot cause a hardware interrupt to occur.
Bit 0 / Change Of Frame Alignment Detected (COFA). This latched read only event status bit will be
set to a one when the T3/E3 framer has experienced a Change Of Frame Alignment (COFA). A COFA
occurs when the device achieves synchronization in a different alignment than it had previously. If the
device has never acquired synchronization before, then this status bit is meaningless. This bit will be
cleared when read and will not be set again until the framer has lost synchronization and reacquired
synchronization in a different alignment.
Bit 1 / Zero Suppression Codeword Detected (ZSCD). This latched read only event status bit will be
set to a one when the T3/E3 framer has detected a B3ZS/HDB3 codeword. This bit will be cleared when
read and will not be set again until the framer has detected another B3ZS/HDB3 codeword.
相关PDF资料
PDF描述
DS3112 DATACOM, FRAMER, PBGA256
DS3131 SPECIALTY TELECOM CIRCUIT, PBGA256
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DS3150QN DATACOM, PCM TRANSCEIVER, PQCC28
DS3150Q DATACOM, PCM TRANSCEIVER, PQCC28
相关代理商/技术参数
参数描述
DS3112N+ 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS3112N+W 功能描述:网络控制器与处理器 IC TEMPE T3/E3 MUX FRMR & M13/E13/G.747 MUX RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS3112NC1 制造商:Maxim Integrated Products 功能描述:T3 E3 MULTIPLEXER, 3.3V T3/E3 FRAMER AND M13/E13/G.747 MUX - Rail/Tube
DS3112ND1E 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS3112RD 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
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