参数资料
型号: DS21FF44N
厂商: DALLAS SEMICONDUCTOR
元件分类: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PBGA300
封装: 27 X 27 MM, BGA-300
文件页数: 40/110页
文件大小: 526K
代理商: DS21FF44N
DS21FT44/DS21FF44
35 of 110
TCR1: TRANSMIT CONTROL REGISTER 1 (Address=12 Hex)
(MSB)
(LSB)
ODF
TFPT
T16S
TUA1
TSiS
TSA1
TSM
TSIO
SYMBOL
POSITION
NAME AND DESCRIPTION
ODF
TCR1.7
Output Data Format.
0 = bipolar data at TPOS and TNEG
1 = NRZ data at TPOS; TNEG=0
TFPT
TCR1.6
Transmit Timeslot 0 Pass Through.
0 = FAS bits/Sa bits/Remote Alarm sourced internally from
the TAF and TNAF registers
1 = FAS bits/Sa bits/Remote Alarm sourced from TSER
T16S
TCR1.5
Transmit Timeslot 16 Data Select.
0 = sample timeslot 16 at TSER pin
1 = source timeslot 16 from TS0 to TS15 registers
TUA1
TCR1.4
Transmit Unframed All Ones.
0 = transmit data normally
1 = transmit an unframed all one’s code at TPOS and TNEG
TSiS
TCR1.3
Transmit International Bit Select.
0 = sample Si bits at TSER pin
1 = source Si bits from TAF and TNAF registers (in this
mode, TCR1.6 must be set to 0)
TSA1
TCR1.2
Transmit Signaling All Ones.
0 = normal operation
1 = force timeslot 16 in every frame to all ones
TSM
CR1.1
TSYNC Mode Select.
0 = frame mode (see the timing in Section 22)
1 = CAS and CRC4 multiframe mode (see the timing in
Section 22)
TSIO
TCR1.0
TSYNC I/O Select.
0 = TSYNC is an input
1 = TSYNC is an output
NOTE:
See Figure 22–15 for more details about how the Transmit Control Registers affect the operation of the
DS21Q44.
TCR2: TRANSMIT CONTROL REGISTER 2 (Address=13 Hex)
(MSB)
(LSB)
Sa8S
Sa7S
Sa6S
Sa5S
Sa4S
ODM
AEBE
PF
SYMBOL
POSITION
NAME AND DESCRIPTION
Sa8S
TCR2.7
Sa8 Bit Select. Set to one to source the Sa8 bit from the
TLINK pin; set to zero to not source the Sa8 bit. See Section
22 for timing details.
相关PDF资料
PDF描述
DS21FT40N DATACOM, FRAMER, PBGA300
DS21FT40 DATACOM, FRAMER, PBGA300
DS21FT42 DATACOM, FRAMER, PBGA300
DS21FT42N DATACOM, FRAMER, PBGA300
DS21FF42 DATACOM, FRAMER, PBGA300
相关代理商/技术参数
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DS21FT42N 功能描述:网络控制器与处理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer 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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