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參數(shù)資料

XR16M2752

REV. 1.0.0

1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

FCR[2]: TX FIFO Reset

This bit is only active when FCR bit-0 is a ‘1’.

Logic 0 = No transmit FIFO reset (default).

Logic 1 = Reset the transmit FIFO pointers and FIFO level counter logic (the transmit shift register is not

cleared or altered). This bit will return to a logic 0 after resetting the FIFO.

FCR[3]: DMA Mode Select

Controls the behavior of the TXRDY# and RXRDY# pins. See DMA operation section for details.

Logic 0 = Normal Operation (default).

Logic 1 = DMA Mode.

FCR[5:4]: Transmit FIFO Trigger Select (requires EFR bit-4 = 1)

(logic 0 = default, TX trigger level = 1)

These 2 bits set the trigger level for the transmit FIFO. The UART will issue a transmit interrupt when the

number of characters in the FIFO falls below the selected trigger level, or when it gets empty in case that the

FIFO did not get filled over the trigger level on last re-load. Table 10 below shows the selections. EFR bit-4

must be set to ‘1’ before these bits can be accessed. Note that the receiver and the transmitter cannot use

different trigger tables. Whichever selection is made last applies to both the RX and TX side.

FCR[7:6]: Receive FIFO Trigger Select

(logic 0 = default, RX trigger level =1)

The FCTR Bits 5-4 are associated with these 2 bits. These 2 bits are used to set the trigger level for the receive

FIFO. The UART will issue a receive interrupt when the number of the characters in the FIFO crosses the

trigger level. Table 10 shows the complete selections. Note that the receiver and the transmitter cannot use

different trigger tables. Whichever selection is made last applies to both the RX and TX side.

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
XR16M2752IL-0B-EB	功能描述:界面開(kāi)發(fā)工具 Eval Board for XR16M2752IL Series RoHS:否制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V
XR16M2752IL32	制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752IL32-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
XR16M2752IL32TR-F	制造商:Exar Corporation 功能描述:UART 2-CH 64Byte FIFO 1.8V/2.5V/3.3V 32-Pin QFN EP T/R 制造商:Exar Corporation 功能描述:XR16M2752IL32TR-F
XR16M554	制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO

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