参数资料
型号: DS21554L+
厂商: Maxim Integrated Products
文件页数: 80/124页
文件大小: 0K
描述: IC TXRX E1 1-CHIP 5V 100-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 90
功能: 单芯片收发器
接口: E1,HDLC,J1,T1
电路数: 1
电源电压: 4.75 V ~ 5.25 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: 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
产品目录页面: 1430 (CN2011-ZH PDF)
DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
59 of 124
9.2.2.
Transmit Side
Via the THSE control bit (CCR3.2), the DS21354/DS21554 can be set up to take the signaling data
presented at the TSIG pin and insert the signaling data into the PCM data stream that is being input at the
TSER pin. The hardware signaling insertion capabilities of each framer are available whether the
transmit-side elastic store is enabled or disabled. If the transmit-side elastic store is enabled, the
backplane clock (TSYSCLK) must be 2.048MHz/4.096MHz/8.192MHz.
When hardware signaling insertion is enabled on a framer (THSE = 1), then the user must enable the
Transmit Channel Blocking Register Function Select (TCBFS) control bit (CCR3.6 = 1). This is needed
so that the CAS multiframe alignment word, multiframe remote alarm, and spare bits can be added to
time slot 16 in frame 0 of the multiframe. The TS1 register should be programmed with the proper
information. If CCR3.6 = 1, then a zero in the TCBRs implies that signaling data is to be sourced from
TSER (or TSIG if CCR3.2 = 1) and a one implies that signaling data for that channel is to be sourced
from the Transmit Signaling (TS) registers. See definition below.
TCBR1/TCBR2/TCBR3/TCBR4: DEFINITION WHEN CCR3.6 = 1
(MSB)
(LSB)
CH18
CH3
CH17
CH2
CH16
CH1
1*
TCBR1(22)
CH22
CH7
CH21
CH6
CH20
CH5
CH19
CH4
TCBR2(23)
CH26
CH11
CH25
CH10
CH24
CH9
CH23
CH8
TCBR3(24)
CH30
CH15
CH29
CH14
CH28
CH13
CH27
CH12
TCBR4(25)
*These bits should be set to one to allow the internal TS1 register to create the CAS Multiframe Alignment Word and Spare/Remote Alarm bits.
The user can also take advantage of this functionality to intermix signaling data from the TSIG pin and
from the internal Transmit Signaling Registers (TS1 to TS16). As an example, assume that the user
wishes to source all the signaling data except for voice channels 5 and 10 from the TSIG pin. In this
application, the following bits and registers would be programmed as follows:
CONTROL BITS
REGISTER VALUES
THSE = 1 (CCR3.2)
TS1 = 0Bh (MF alignment word, remote alarm etc.)
TCBFS = 1 (CCR3.6)
TCBR1 = 03h (source time slot 16, frame 1 data)
T16S = 0 (TCR1.5)
TCBR2 = 01h (source voice Channel 5 signaling data from TS6)
CBR3 = 04h (source voice Channel 10 signaling data from TS11)
TCBR4 = 00h
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DS21554L+ 功能描述:网络控制器与处理器 IC 3.3/5V E1 Transceiver 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
DS21554LB 功能描述:网络控制器与处理器 IC 3.3/5V E1 Transceiver 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
DS21554LB+ 功能描述:网络控制器与处理器 IC 3.3/5V E1 Transceiver 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
DS21554LBN 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
DS21554LBN+ 功能描述:网络控制器与处理器 IC 3.3/5V E1 Transceiver 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