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參數(shù)資料
| 型號(hào)： | DS21Q59LN+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 14/76頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX E1 QUAD 100-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 4/4 |
| 規(guī)程： | E1 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 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 |
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DS21Q59 Quad E1 Transceiver
21 of 76
8.2 Framer Loopback
When CCR1.7 is set to 1, the DS21Q59 enters a framer loopback (FLB) mode (Figure 3-1). This loopback is useful
in testing and debugging applications. In FLB mode, the SCT loops data from the transmitter back to the receiver.
When FLB is enabled, the following occurs:
1) Data is transmitted as normal at TPOSO and TNEGO.
2) Data input through RPOSI and RNEGI is ignored.
3) The RCLK output is replaced with the TCLK input.
Register Name:
CCR2
Register Description:
Common Control Register 2
Register Address:
13 Hex
Bit #
7
6
5
4
3
2
1
0
Name
ECUS
VCRFS
AAIS
ARA
RSERC
LOTCMC
RCLA
TCSS
NAME
BIT
FUNCTION
ECUS
7
Error Counter Update Select. See Section 10 for details.
0 = update error counters once a second
1 = update error counters every 62.5ms (500 frames)
VCRFS
6
VCR Function Select. See Section 10 for details.
0 = count bipolar violations (BPVs)
1 = count code violations (CVs)
AAIS
5
Automatic AIS Generation
0 = disabled
1 = enabled
ARA
4
Automatic Remote Alarm Generation
0 = disabled
1 = enabled
RSERC
3
RSER Control
0 = allow RSER to output data as received under all conditions
1 = force RSER to 1 under loss-of-frame alignment conditions
LOTCMC
2
Loss-of-Transmit Clock Mux Control. Determines whether the transmit
formatter should switch to the ever present RCLK if the TCLK should fail to
transition.
0 = do not switch to RCLK if TCLK stops
1 = switch to RCLK if TCLK stops
RCLA
1
Receive Carrier Loss (RCL) Alternate Criteria
0 = RCL declared upon 255 consecutive 0s (125
ms)
1 = RCL declared upon 2048 consecutive 0s (1ms)
TCSS
0
Transmit Clock Source Select. This function allows the user to internally
select RCLK as the clock source for the transmit formatter.
0 = source of transmit clock is determined by CCR2.2 (LOTCMC)
1 = forces transmitter to internally switch to RCLK as source of transmit clock;
signal at TCLK pin is ignored
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS21Q59LN+ | 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS21S07A | 制造商:Maxim Integrated Products 功能描述: |
| DS21S07AE | 功能描述:SCSI 接口集成電路 RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| DS21S07AE/T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:SCSI Terminator |
| DS21S07AE/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:IC TERMINATOR SCSI 20-TSSOP |
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