- 您现在的位置：买卖IC网 > PDF目录16472 > XR68M752IB-0A-EVB (Exar Corporation)EVAL BOARD FOR 68M752 49BGA PDF资料下载
参数资料
| 型号： | XR68M752IB-0A-EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 20/54页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR 68M752 49BGA |
| 标准包装： | 1 |
| 系列： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页当前第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页
XR16M752/XR68M752
27
REV. 1.1.1
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
4.3.2
IER versus Receive/Transmit FIFO Polled Mode Operation
When FCR BIT-0 equals a logic 1 for FIFO enable; resetting IER bits 0-3 enables the XR16M752 in the FIFO
polled mode of operation. Since the receiver and transmitter have separate bits in the LSR either or both can
be used in the polled mode by selecting respective transmit or receive control bit(s).
A. LSR BIT-0 indicates there is data in RHR or RX FIFO.
B. LSR BIT-1 indicates an overrun error has occurred and that data in the FIFO may not be valid.
C. LSR BIT 2-4 provides the type of receive data errors encountered for the data byte in RHR, if any.
D. LSR BIT-5 indicates THR is empty.
E. LSR BIT-6 indicates when both the transmit FIFO and TSR are empty.
F. LSR BIT-7 indicates a data error in at least one character in the RX FIFO.
IER[0]: RHR Interrupt Enable
The receive data ready interrupt will be issued when RHR has a data character in the non-FIFO mode or when
the receive FIFO has reached the programmed trigger level in the FIFO mode.
Logic 0 = Disable the receive data ready interrupt (default).
Logic 1 = Enable the receiver data ready interrupt.
IER[1]: THR Interrupt Enable
This bit enables the Transmit Ready interrupt which is issued whenever the THR becomes empty in the non-
FIFO mode or when spaces in the FIFO is above the programmed trigger level in the FIFO mode. If the THR is
empty when this bit is enabled, an interrupt will be generated.
Logic 0 = Disable Transmit Ready interrupt (default).
Logic 1 = Enable Transmit Ready interrupt.
IER[2]: Receive Line Status Interrupt Enable
If any of the LSR register bits 1, 2, 3, 4 or 7 is a logic 1, it will generate an interrupt to inform the host controller
about the error status of the current data byte in FIFO. LSR bit-1 generates an interrupt immediately when the
character has been received. LSR bit-7 is set if any character in the RX FIFO has a parity or framing error, or is
a break character. LSR[4:2] always show the error status for the received character available for reading from
the RX FIFO. If IER[2] = 1, an LSR interrupt will be generated as long as LSR[7] = 1, ie. the RX FIFO contains
at lease one character with an error.
Logic 0 = Disable the receiver line status interrupt (default).
Logic 1 = Enable the receiver line status interrupt.
IER[3]: Modem Status Interrupt Enable
Logic 0 = Disable the modem status register interrupt (default).
Logic 1 = Enable the modem status register interrupt.
IER[4]: Sleep Mode Enable (requires EFR bit-4 = 1)
Logic 0 = Disable Sleep Mode (default).
Logic 1 = Enable Sleep Mode. See Sleep Mode section for further details.
IER[5]: Xoff Interrupt Enable (requires EFR bit-4=1)
Logic 0 = Disable the software flow control, receive Xoff interrupt (default).
Logic 1 = Enable the receive Xoff interrupt. See Software Flow Control section for details.
相关PDF资料 |
PDF描述 |
|---|---|
| A3967SLBTR | IC MOTOR DRIVER PWM FULL 24SOIC |
| VI-202-EX | CONVERTER MOD DC/DC 15V 75W |
| EB83-S0D1840V | CONN EDGEBOARD DUAL 36POS 5A |
| ECM22DRMI-S288 | CONN EDGECARD 44POS .156 EXTEND |
| VI-201-EX | CONVERTER MOD DC/DC 12V 75W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XR68M752IB-0B-EVB | 功能描述:界面开发工具 Eval Board for XR68M752IB Series 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 |
| XR68M752IB49 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR68M752IB49-F | 功能描述:UART 接口集成电路 W/64 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 |
| XR68M752IL-0B-EB | 功能描述:界面开发工具 Support XR68M752 32L QFN, PCI Interface 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 |
| XR68M752IL32 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
发布紧急采购，3分钟左右您将得到回复。