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参数资料
| 型号： | XR16V654DIV-0A-EB |
| 厂商： | Exar Corporation |
| 文件页数： | 26/58页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR16V654D 64LQFP |
| 标准包装： | 1 |
| 系列： | * |
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XR16V654/654D
32
2.25V TO 3.6V QUAD UART WITH 64-BYTE FIFO
REV. 1.0.1
FCR[1]: RX FIFO Reset
This bit is only active when FCR bit-0 is a ‘1’.
Logic 0 = No receive FIFO reset (default)
Logic 1 = Reset the receive FIFO pointers and FIFO level counter logic (the receive shift register is not
cleared or altered). This bit will return to a logic 0 after resetting the 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 = one)
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 12 below shows the selections.
FCR[7:6]: Receive FIFO Trigger Select
(logic 0 = default, RX trigger level =1)
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 12 shows the complete selections.
TABLE 12: TRANSMIT AND RECEIVE FIFO TRIGGER LEVEL SELECTION
FCR
BIT-7
FCR
BIT-6
FCR
BIT-5
FCR
BIT
-4
RECEIVE
TRIGGER
LEVEL
TRANSMIT
TRIGGER
LEVEL
0
1
0
1
0
1
0
1
0
1
0
1
8
16
56
60
8
16
32
56
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相关代理商/技术参数 |
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| XR16V654DIV-F | 功能描述:UART 接口集成电路 UART 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 |
| XR16V654DIVTR-F | 制造商:Exar Corporation 功能描述:UART 4-CH 64Byte FIFO 2.5V/3.3V 64-Pin LQFP T/R 制造商:Exar Corporation 功能描述:XR16V654DIVTR-F |
| XR16V654IJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| XR16V654IJ-0A-EVB | 功能描述:UART 接口集成电路 Supports V654 68 ld PLCC, ISA Interface 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 |
| XR16V654IJ-F | 功能描述:UART 接口集成电路 UART 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 |
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