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参数资料
| 型号： | DS21FT40N |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Digital Transmission Controller |
| 英文描述： | DATACOM, FRAMER, PBGA300 |
| 封装： | BGA-300 |
| 文件页数： | 41/87页 |
| 文件大小： | 386K |
| 代理商： | DS21FT40N |
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DS21FT40
46 of 87
TS1 TO TS16: TRANSMIT SIGNALING REGISTERS (Address=40 to 4F Hex)
(MSB)
(LSB)
0000
XYXX
TS1 (40)
A(1)
B(1)
C(1)
D(1)
A(16)
B(16)
C(16)
D(16)
TS2 (41)
A(2)
B(2)
C(2)
D(2)
A(17)
B(17)
C(17)
D(17)
TS3 (42)
A(3)
B(3)
C(3)
D(3)
A(18)
B(18)
C(18)
D(18)
TS4 (43)
A(4)
B(4)
C(4)
D(4)
A(19)
B(19)
C(19)
D(19)
TS5 (44)
A(5)
B(5)
C(5)
D(5)
A(20)
B(20)
C(20)
D(20)
TS6 (45)
A(6)
B(6)
C(6)
D(6)
A(21)
B(21)
C(21)
D(21)
TS7 (46)
A(7)
B(7)
B(22)
TS8 (47)
A(8)
B(8)
C(8)
D(8)
A(23)
B(23)
C(23)
D(23)
TS9 (48)
A(9)
B(9)
C(9)
D(9)
A(24)
B(24)
C(24)
D(24)
TS10 (49)
A(10)
B(10)
C(10)
D(10)
A(25)
B(25)
C(25)
D(25)
TS11 (4A)
A(11)
B(11)
C(11)
D(11)
A(26)
B(26)
C(26)
D(26)
TS12 (4B)
A(12)
B(12)
C(12)
D(12)
A(27)
B(27)
C(27)
D(27)
TS13 (4C)
A(13)
B(13)
C(13)
D(13)
A(28)
B(28)
C(28)
D(28)
TS14 (4D)
A(14)
B(14)
C(14)
D(14)
A(29)
B(29)
C(29)
D(29)
TS15 (4E)
A(15)
B(15)
C(15)
D(15)
A(30)
B(30)
C(30)
D(30)
TS16 (4F)
SYMBOLS
POSITION
NAME AND DESCRIPTION
X
TS1.0/1/3
Spare Bits.
Y
TS1.2
Remote Alarm Bit (integrated and reported in SR1.6).
A(1)
TS2.7
Signaling Bit A for Channel 1
D(30)
TS16.0
Signaling Bit D for Channel 30.
Each Transmit Signaling Register (TS1 to TS16) contains the CAS bits for two timeslots that will be
inserted into the outgoing stream if enabled to do so via TCR1.5. On multiframe boundaries, the framer
will load the values present in the Transmit Signaling Register into an outgoing signaling shift register
that is internal to the device. The user can utilize the Transmit Multiframe bit in Status Register 2
(SR2.5) to know when to update the signaling bits. The bit will be set every 2 ms and the user has 2 ms to
update the TSR’s before the old data will be retransmitted. ITU specifications recommend that the
ABCD signaling not be set to all zeros because they will emulate a CAS multiframe alignment word.
The TS1 register is special because it contains the CAS multiframe alignment word in its upper nibble.
The upper nibble must always be set to 0000 or else the terminal at the far end will lose multiframe
synchronization. If the user wishes to transmit a multiframe alarm to the far end, then the TS1.2 bit
should be set to a one. If no alarm is to be transmitted, then the TS1.2 bit should be cleared. The three
remaining bits in TS1 are the spare bits. If they are not used, they should be set to one. In CCS signaling
mode, TS1 to TS16 can also be used to insert signaling information. Via the SR2.5 bit, the user will be
informed when the signaling registers need to be loaded with data. The user has 2 ms to load the data
before the old data will be retransmitted.
Via the CCR3.6 bit, the user has the option to use the Transmit Channel Blocking Registers (TCBRs) to
determine on a channel by channel basis, which signaling bits are to be inserted via the TSRs (the
corresponding bit in the TCBRs=1) and which are to be sourced from the TSER pin. See the Transmit
Data Flow diagram in Section 16 for more details.
相关PDF资料 |
PDF描述 |
|---|---|
| DS21FT40 | DATACOM, FRAMER, PBGA300 |
| DS21FT42 | DATACOM, FRAMER, PBGA300 |
| DS21FT42N | DATACOM, FRAMER, PBGA300 |
| DS21FF42 | DATACOM, FRAMER, PBGA300 |
| DS21FF42N | DATACOM, FRAMER, PBGA300 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21FT42 | 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 |
| 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 |
| DS21FT44 | 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 |
| DS21FT44+ | 功能描述:网络控制器与处理器 IC 4X3 E1 Framer E1 Framer E1 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 |
| DS21FT44N | 功能描述:网络控制器与处理器 IC 4x4 16/4x3 12 Chnl E1/E1 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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