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參數(shù)資料
| 型號(hào)： | XR16M752IL-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 24/54頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD FOR 16M752-B 32QFN |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
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XR16M752/XR68M752
30
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
REV. 1.1.1
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 = 8)
These 2 bits set the trigger level for the transmit FIFO. The UART will issue a transmit interrupt when the
number of spaces in the FIFO is above 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 shows the selections. The UART will issue a
transmit interrupt when the number of available spaces in the FIFO is less than the transmit trigger level.
Table 10 shows the selections.
FCR[7:6]: Receive FIFO Trigger Select
(logic 0 = default, RX trigger level = 8)
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 is greater than the receive trigger level or when a receive data
timeout occurs (see “Section 2.10, Receiver” on page 17).
TABLE 10: TRANSMIT AND RECEIVE FIFO TRIGGER LEVEL SELECTION
BIT-7
BIT-6
BIT-5
BIT
-4
RECEIVE
TRIGGER LEVEL
(CHARACTERS)
TRANSMIT
TRIGGER LEVEL
(SPACES)
0
1
0
1
0
1
0
1
0
1
0
1
8
16
56
60
8
16
32
56
FCR
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16M752IL32 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR16M752IL32-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 |
| XR16M752IM-0B-EB | 功能描述:UART 接口集成電路 Supports 16M752 48ld TQFP, PCI Interface 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 |
| XR16M752IM48 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE DUART WITH 64-BYTE FIFO |
| XR16M752IM48-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 |
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