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參數(shù)資料
| 型號： | XR21V1412IL-0B-EB |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 15/32頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR21V1412IL |
| 產(chǎn)品培訓模塊： | UART Product Overview XR21V141x Full-Speed USB UART Family |
| 標準包裝： | 1 |
| 主要目的： | 接口，USB 2.0 至 UART |
| 嵌入式： | 否 |
| 已用 IC / 零件： | XR21V1412IL |
| 已供物品： | 板 |
| 其它名稱： | 1016-1426 |
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XR21V1412
22
2-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. If the V1412 is configured in multidrop mode, the XON_CHAR and
XOFF_CHAR registers are instead used for address matching.
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 12.
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 12.
3.3.8
LOOPBACK_CTL Register Descriptions (Read/Write)
LOOPBACK_CTL[0]: Channel
Logic 0 = UART Channel A
Logic 1 = UART Channel B
LOOPBACK_CTL[1]: Reserved
This bit is reserved and should remain ’0’.
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 |
|---|---|
| XR21V1412IL32 | 制造商:EXAR 制造商全稱:EXAR 功能描述:2-CH FULL-SPEED USB UART |
| XR21V1412IL32-F | 功能描述:USB 接口集成電路 2-Ch 12Mbps 48MHz Internal clock; UART RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| XR21V1412IL32TR-F | 功能描述:USB 接口集成電路 2 Chan FS USB UART w/ 256 Byte FIFO RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| XR21V1414 | 制造商:EXAR 制造商全稱:EXAR 功能描述:4-CH FULL-SPEED USB UART |
| XR21V1414_10 | 制造商:EXAR 制造商全稱:EXAR 功能描述:4-CH FULL-SPEED USB UART |
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