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參數(shù)資料
| 型號： | XR21V1414IM48-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 17/34頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART FIFO USB QUAD 48TQFP |
| 產(chǎn)品培訓(xùn)模塊： | UART Product Overview XR21V141x Full-Speed USB UART Family |
| 特色產(chǎn)品： | XR21V141x Full-Speed USB UART |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 特點(diǎn)： | * |
| 通道數(shù)： | 1，UART |
| FIFO's： | 128 字節(jié) |
| 規(guī)程： | USB 2.0 |
| 電源電壓： | 3.3V |
| 帶自動流量控制功能： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-TQFP |
| 供應(yīng)商設(shè)備封裝： | 48-TQFP（7x7） |
| 包裝： | 托盤 |
| 配用： | 1016-1303-ND - EVAL BOARD FOR XR21V1414IM |
| 其它名稱： | 1016-1304 |
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XR21V1414
24
4-CH FULL-SPEED USB UART
REV. 1.3.0
FLOW_CONTROL[2:0]: Flow control mode select
FLOW_CONTROL[3]: Half-Duplex Mode
Logic 0 = Normal (full-duplex) mode. The UART can transmit and receive data at the same time.
Logic 1 = Half-duplex Mode. In half-duplex mode, any data on the RX pin is ignored when the UART is
transmitting data.
FLOW_CONTROL[7:4]: Reserved
These bits are reserved and should remain ’0’.
3.3.7
XON_CHAR, XOFF_CHAR Register Descriptions (Read/Write)
The XON_CHAR and XOFF_CHAR registers store the XON and XOFF characters, respectively, that are used
in the Automatic Software Flow control.
XON_CHAR[7:0]: XON Character
In Automatic Software Flow control mode, the UART will resume data transmission when the XON character
has been received.
For behavior in the Address Match mode, see “Section 1.5.9, Multidrop Mode with address matching” on
page 14.
For behavior in the Address Match with TX Flow Control mode, see “Section 1.5.9, Multidrop Mode with
address matching” on page 14.
XOFF_CHAR[7:0]: XOFF Character
In Automatic Software Flow control mode, the UART will suspend data transmission when the XOFF character
has been received.
For behavior in the Address Match mode, see “Section 1.5.9, Multidrop Mode with address matching” on
page 14.
For behavior in the Address Match with TX Flow Control mode, see “Section 1.5.10, Programmable Turn-
Around Delay” on page 14.
TABLE 13: FLOW CONTROL MODE SELECTION
MODE
BIT-2 BIT-1 BIT-0
MODE DESCRIPTION
0
No flow control, no address matching.
1
0
1
HW flow control enabled. Auto RTS/CTS or DTR/DSR must be selected by
GPIO_MODE.
2
0
1
0
SW flow control enabled
3
0
1
Multidrop mode - RX only after address match, TX independent. (Typically
used with GPIO_MODE 3)
4
1
0
Multidrop mode - RX / TX only after address match. (Typically used with
GPIO_MODE 4)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR21V1414IM48-F | 制造商:Exar Corporation 功能描述:IC QUAD UART 12MBPS 3.63V 48-TQFP |
| XR21V1414IM48TR-F | 制造商:Exar Corporation 功能描述:USB-to-UART 4-CH 128Byte FIFO 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR21V1414 Series 12 Mbps 3.63 V Quad Channel USB UART SMT - TQFP-48 制造商:Exar Corporation 功能描述:XR21V1414IM48TR-F 制造商:EXAR 功能描述:USB-to-UART 4-CH 128Byte FIFO 48-Pin TQFP T/R |
| XR21V1414M48-F | 制造商:Exar Corporation 功能描述:UART 4-CH FULL SPEED USB I/F 48TQFP 制造商:Exar Corporation 功能描述:UART, 4-CH FULL SPEED, USB I/F, 48TQFP, No. of Channels:4, Data Rate:12Mbps, Sup |
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