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参数资料
| 型号： | XR17V352IB113-F |
| 厂商： | Exar Corporation |
| 文件页数： | 47/64页 |
| 文件大小： | 0K |
| 描述： | IC UART PCIE 256B DUAL 113FPBGA |
| 产品培训模块： | PCIe UARTs |
| 标准包装： | 260 |
| 特点： | * |
| 通道数： | 2，DUART |
| FIFO's： | 256 字节 |
| 规程： | RS485 |
| 电源电压： | 3.3V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 113-LFBGA |
| 供应商设备封装： | 113-FPBGA |
| 包装： | 托盘 |
| 其它名称： | 1016-1471 XR17V352IB113-F-ND |
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XR17V352
51
REV. 1.0.3
HIGH PERFORMANCE DUAL PCI EXPRESS UART
MCR[7]: Clock Prescaler Select (requires EFR bit [4]=1)
Logic 0 = Divide by one. The internal 125MHz clock is fed directly to the Programmable Baud Rate
Generator without further modification, i.e., divide by one (default).
Logic 1 = Divide by four. The prescaler divides the internal 125MHz clock by 4 and feeds it to the
Programmable Baud Rate Generator, hence, data rates become one forth.
MCR[6]: Infrared Encoder/Decoder Enable (requires EFR bit [4]=1)
The state of this bit depends on the sampled logic level of pin ENIR during power up, following a hardware
reset (rising edge of RST# input). Afterward user can override this bit for desired operation.
Logic 0 = Enable the standard modem receive and transmit character interface.
Logic 1 = Enable infrared IrDA receive and transmit inputs/outputs. While in this mode, the TX/RX output/
input are routed to the infrared encoder/decoder. The data input and output levels will conform to the IrDA
infrared interface requirement. As such, while in this mode the infrared TX output will be a LOW during idle
data conditions. FCTR bit [4] may be selected to invert the RX input signal level going to the decoder for
infrared modules that provide rather an inverted output. For exact 3/16 or 1/4 bit wide pulse, the 16X
sampling rate must be used and DLD[3:0] = ’0000’. If DLD[3:0] is not ’0000’, the pulse width can vary.
MCR[5]: Xon-Any Enable (requires EFR bit [4]=1)
Logic 0 = Disable Xon-Any function (default).
Logic 1 = Enable Xon-Any function. In this mode any RX character received will enable Xon, resume data
transmission.
MCR[4]: Internal Loopback Enable
Logic 1 = Disable loopback mode (default).
Logic 1 = Enable local loopback mode, see loopback section and Figure 12.
MCR[3]: Send Char Immediate (OP2 in Local Loopback Mode)
This bit is used to transmit a character immediately irrespective of the bytes currently in the transmit FIFO. The
data byte must be loaded into the transmit holding register (THR) immediately following the write to this bit (to
set it to a ’1’). In other words, no other register must be accessed between setting this bit and writing to the
THR. The loaded byte will be transmitted ahead of all the bytes in the TX FIFO, immediately after the character
currently being shifted out of the transmit shift register is sent out. The existing line parameters (parity, stop
bits) will be used when composing the character. This bit is self clearing, therefore, must be set before sending
a custom character each time. Please note that the Transmitter must be enabled for this function (MSR[3] = 0).
Also, if software flow control is enabled, the software flow control characters (Xon, Xoff) have higher priority
and will get shifted out before the custom byte is transmitted.
Logic 0 = Send Char Immediate disabled (default).
Logic 1 = Send Char Immediate enabled.
In Local Loopback Mode (MCR[4] = 1), this bit acts as the legacy OP2 output and controls the CD bit in the
MSR register as shown in Figure 12. Please make sure that this bit is a ’0’ when exiting the Local Loopback
Mode.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR17V354 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE QUAD PCI-EXPRESS UART |
| XR17V354IB-0A-EVB | 功能描述:界面开发工具 Eval Board for XR17V354IB-0A RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR17V354IB176-F | 功能描述:UART 接口集成电路 4 Channel PCIe UART w/256 Byte FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| XR17V354IB-E4-EVB | 功能描述:界面开发工具 Eval Board for XR17V354IB-E4 RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| XR17V354IB-E8-EVB | 功能描述:界面开发工具 Eval Board for XR17V354IB-E8 RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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