參數(shù)資料
型號： XR19L220IL40-0B-EB
廠商： Exar Corporation
文件頁數(shù)： 21/43頁
文件大小： 0K
描述： EVAL BOARD FOR XR19L202 40QFN
標準包裝： 1
系列： *
XR19L220
28
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.2
LSR[7]: Receive FIFO Data Error Flag
Logic 0 = No FIFO error (default).
Logic 1 = A global indicator for the sum of all error bits in the RX FIFO. At least one parity error, framing error
or break indication is in the FIFO data. This bit clears when there is no more error(s) in any of the bytes in the
RX FIFO.
4.10
Modem Status Register (MSR) - Read Only
This register provides the current state of the modem interface input signals. Lower four bits of this register are
used to indicate the changed information. These bits are set to a logic 1 whenever a signal from the modem
changes state. These bits may be used for general purpose inputs when they are not used with modem
signals.
MSR[0]: Delta CTS Input Flag
Logic 0 = No change on CTS input (default).
Logic 1 = The CTS input has changed state since the last time it was monitored. A modem status interrupt
will be generated if MSR interrupt is enabled (IER bit-3).
MSR[1]: Delta DSR Input Flag
Logic 0 = No change on DSR input (default).
Logic 1 = The DSR input has changed state since the last time it was monitored. A modem status interrupt
will be generated if MSR interrupt is enabled (IER bit-3).
MSR[2]: Delta RI Input Flag
Logic 0 = No change on RI input (default).
Logic 1 = The RI input has changed from LOW to HIGH, ending of the ringing signal. A modem status
interrupt will be generated if MSR interrupt is enabled (IER bit-3).
MSR[3]: Delta CD Input Flag
Logic 0 = No change on CD input (default).
Logic 1 = Indicates that the CD input has changed state since the last time it was monitored. A modem status
interrupt will be generated if MSR interrupt is enabled (IER bit-3).
MSR[4]: CTS Input Status
CTS pin may function as automatic hardware flow control signal input if it is enabled and selected by Auto CTS
(EFR bit-7). Auto CTS flow control allows starting and stopping of local data transmissions based on the
modem CTS signal. A HIGH on the CTS pin will stop UART transmitter as soon as the current character has
finished transmission, and a LOW will resume data transmission. Normally MSR bit-4 bit is the complement of
the CTS input. However in the loopback mode, this bit is equivalent to the RTS bit in the MCR register. The
CTS input may be used as a general purpose input when the modem interface is not used.
MSR[5]: DSR Input Status
Normally this bit is the complement of the DSR input. In the loopback mode, this bit is equivalent to the DTR bit
in the MCR register. The DSR input may be used as a general purpose input when the modem interface is not
used.
MSR[6]: RI Input Status
Normally this bit is the complement of the RI input. In the loopback mode this bit is equivalent to bit-2 in the
MCR register. The RI input may be used as a general purpose input when the modem interface is not used.
MSR[7]: CD Input Status
Normally this bit is the complement of the CD input. In the loopback mode this bit is equivalent to bit-3 in the
MCR register. The CD input may be used as a general purpose input when the modem interface is not used.
4.11
Scratchpad Register (SPR) - Read/Write
This is a 8-bit general purpose register for the user to store temporary data. The content of this register is
preserved during sleep mode but becomes 0xFF (default) after a reset or a power off-on cycle.
相關PDF資料
PDF描述
XR17C152CM-0A-EVB EVAL BOARD FOR XR17C152 100TQFP
VE-J52-EX CONVERTER MOD DC/DC 15V 75W
SI3056SSI2-EVB BOARD EVAL SI3056/SI3010 SSI
6828281-2 CA 62.5 SC DUP-MTRJ OR SECURE
RHS0E152MCN1GS CAP ALUM 1500UF 2.5V 20% SMD
相關代理商/技術參數(shù)
參數(shù)描述
XR19L220IL40-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR19L222 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L222IL64 制造商:EXAR 制造商全稱:EXAR 功能描述:TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
XR19L222IL64-0B-EB 功能描述:界面開發(fā)工具 Supports L222 64 pin QFN, pci Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
XR19L222IL64-F 功能描述:UART 接口集成電路 UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*