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參數(shù)資料
| 型號： | DS21554LN |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Digital Transmission Interface |
| 英文描述： | DATACOM, PCM TRANSCEIVER, PQFP100 |
| 封裝： | 14 X 14 MM, LQFP-100 |
| 文件頁數(shù)： | 73/117頁 |
| 文件大?。?/td> | 698K |
| 代理商： | DS21554LN |
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DS21354 & DS21554
59 of 117
Note:
Bit 2 of the TNAF register must be programmed to one; the DS21354/554 does not automatically set this
bit
14.3 Internal Register Scheme Based On CRC4 Multiframe
On the receive side, there is a set of eight registers (RSiAF, RSiNAF, RRA, RSa4 to RSa8) that report the
Si and Sa bits as they are received. These registers are updated with the setting of the Receive CRC4
Multiframe bit in Status Register 2 (SR2.1). The host can use the SR2.1 bit to know when to read these
registers. The user has 2 ms to retrieve the data before it is lost. The MSB of each register is the first
received. Please see the register descriptions below for more details.
On the transmit side, there is also a set of eight registers (TSiAF, TSiNAF, TRA, TSa4 to TSa8) that via
the Transmit Sa Bit Control Register (TSaCR), can be programmed to insert both Si and Sa data. Data is
sampled from these registers with the setting of the Transmit Multiframe bit in Status Register 2 (SR2.5).
The host can use the SR2.5 bit to know when to update these registers. It has 2 ms to update the data or
else the old data will be retransmitted. The MSB of each register is the first bit transmitted. Please see the
register descriptions below and Figure 19-15 for more details.
REGISTER
ADDRESS (HEX) FUNCTION
RSiAF
58
The eight Si bits in the align frame
RSiNAF
59
The eight Si bits in the non–align frame
RRA
5A
The eight reportings of the receive remote alarm (RA)
RSa4
5B
The eight Sa4 reported in each CRC4 multiframe
RSa5
5C
The eight Sa5 reported in each CRC4 multiframe
RSa6
5D
The eight Sa6 reported in each CRC4 multiframe
RSa7
5E
The eight Sa7 reported in each CRC4 multiframe
RSa8
5F
The eight Sa8 reported in each CRC4 multiframe
TSiAF
50
The eight Si bits to be inserted into the align frame
TSiNAF
51
The eight Si bits to be inserted into the non–align frame
TRA
52
The eight settings of remote alarm (RA)
TSa4
53
The eight Sa4 settings in each CRC4 multiframe
TSa5
54
The eight Sa5 settings in each CRC4 multiframe
TSa6
55
The eight Sa6 settings in each CRC4 multiframe
TSa7
56
The eight Sa7 settings in each CRC4 multiframe
TSa8
57
The eight Sa8 settings in each CRC4 multiframe
TSaCR: TRANSMIT Sa BIT CONTROL REGISTER (Address=1C Hex)
(MSB)
(LSB)
SiAF
SiNAF
RA
Sa4
Sa5
Sa6
Sa7
Sa8
SYMBOL
POSITION NAME AND DESCRIPTION
SiAF
TSaCR.7
International Bit in Align Frame Insertion Control Bit.
0 = do not insert data from the TSiAF register into the transmit data
stream
1 = insert data from the TSiAF register into the transmit data stream
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2155G | DATACOM, FRAMER, PBGA100 |
| DS21600SN | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| DS21600N | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDIP8 |
| DS2155LN | DATACOM, FRAMER, PQFP100 |
| DS21602N | PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDIP8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21554LN+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3/5V E1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2155DK | 功能描述:網(wǎng)絡(luò)開發(fā)工具 RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V |
| DS2155G | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1/E1/J1 Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2155G/T&R | 制造商:Maxim Integrated Products 功能描述:DS2155 T1/E1/J1 SCT 100P CSBGA T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC LIU T1/E1/J1 SCT 100P CSBGA 制造商:Maxim Integrated Products 功能描述:Network Controller & Processor ICs T1/E1/J1 Transceiver |
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