參數(shù)資料
型號： DS21Q50L+
廠商： Maxim Integrated Products
文件頁數(shù)： 37/87頁
文件大?。?/td> 0K
描述： IC TXRX E1 QUAD 100-LQFP
產(chǎn)品培訓模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝： 90
功能： 收發(fā)器
接口： E1
電路數(shù)： 4
電源電壓： 3.14 V ~ 3.47 V
電流 - 電源： 230mA
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-LQFP（14x14）
包裝： 托盤
包括： AIS 警報檢測器和發(fā)生器，回送功能，PRBS 發(fā)生器 / 檢測器，遠程檢測器和發(fā)生器
DS21Q50
42 of 87
7. DS0 MONITORING FUNCTION
Each DS21Q50 framer can monitor one DS0 (64kbps) channel in the transmit direction and one DS0
channel in the receive direction at the same time. In the transmit direction, the user determines which
channel is to be monitored by properly setting the TCM0 to TCM4 bits in the CCR3 register. In the
receive direction, the RCM0–RCM4 bits in the CCR4 register need to be properly set. The DS0 channel
pointed to by the TCM0–TCM4 bits appear in the transmit DS0 monitor (TDS0M) register; the DS0
channel pointed to by the RCM0–RCM4 bits appear in the receive DS0 (RDS0M) register. The TCM4–
TCM0 and RCM4–RCM0 bits should be programmed with the decimal decode of the appropriate E1
channel. For example, if DS0 channel 6 in the transmit direction and DS0 channel 15 in the receive
direction need to be monitored, the following values are programmed into CCR4 and CCR5:
TCM4 = 0
RCM4 = 0
TCM3 = 0
RCM3 = 1
TCM2 = 1
RCM2 = 1
TCM1 = 0
RCM1 = 1
TCM0 = 1
RCM0 = 0
Register Name:
CCR3 (Repeated here from Section 3 for convenience.)
Register Description:
Common Control Register 3
Register Address:
14 Hex
Bit
7
6
5
4
3
2
1
0
Name
RLB
LLB
LIAIS
TCM4
TCM3
TCM2
TCM1
TCM0
NAME
BIT
FUNCTION
RLB
7
Remote Loopback
LLB
6
Local Loopback
LIAIS
5
Line Interface AIS Generation Enable
TCM4
4
Transmit Channel Monitor Bit 4. MSB of a channel decode that determines which transmit
channel data appears in the TDS0M register. See Section 6 or details.
TCM3
3
Transmit Channel Monitor Bit 3
TCM2
2
Transmit Channel Monitor Bit 2
TCM1
1
Transmit Channel Monitor Bit 1
TCM0
0
Transmit Channel Monitor Bit 0. LSB of the channel decode.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21Q50L+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q50L-C01 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
DS21Q50LN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q50LN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q50L-W+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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