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參數(shù)資料
| 型號： | XR21V1412IL32-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 19/32頁 |
| 文件大小： | 0K |
| 描述： | IC UART FIFO USB DUAL 32QFN |
| 產品培訓模塊： | UART Product Overview XR21V141x Full-Speed USB UART Family |
| 特色產品： | XR21V141x Full-Speed USB UART |
| 標準包裝： | 490 |
| 特點： | * |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 128 字節(jié)，384 字節(jié) |
| 規(guī)程： | USB 2.0 |
| 電源電壓： | 2.97 V ~ 3.63 V |
| 帶自動流量控制功能： | 是 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤 |
| 供應商設備封裝： | 32-QFN 裸露焊盤（5x5） |
| 包裝： | 托盤 |
| 配用： | 1016-1301-ND - EVAL BOARD FOR XR21V1412IL |
| 其它名稱： | 1016-1302 |
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XR21V1412
26
2-CH FULL-SPEED USB UART
REV. 1.3.0
CUSTOM[1]: Max Packet Size
Logic 0 = bMaxPacketSize = 64 bytes
Logic 1 = bMaxPacketSize = 63 bytes (this bit is automatically set to ’1’ if the XR21V1412 receives a
CDC_ACM USB command)
CUSTOM[7:2]: Reserved
These bits are reserved and should remain ’0’.
3.4.2
LOW_LATENCY Register Description - Chan A / B (Read/Write)
This register is automatically set to logic ’1’ for baud rates below 46921 bps, and can be manually set for baud
rates of 46921 bps and higher. This register enables the Low latency feature of the UART. Write to this
register following any desired baud rate setting change.
LOW_LATENCY[0]: Enable Low Latency mode
Logic 0 = Receive data is not forwarded from the Rx FIFO until bMaxPacketSize (64 bytes) or timeout (3
characters) has occurred.
Logic 1 = All data in the RX FIFO is provided to the USB host at the next BULK IN request irrespective of the
number of bytes in the FIFO.
LOW_LATENCY[7:1]: Reserved
These bits are reserved and should remain ’0’.
3.4.3
CUSTOM_INT_PACKET - Chan A / B (Read/Write)
This register is used to enable / disable GPIO status in the high data byte of the custom interrupt packet. See
Table 16, “Interrupt Packet Format,” on page 27 and Table 18, “Data Field of Customized Interrupt
Packet - Exar Vendor Specific,” on page 28.
CUSTOM_INT_PACKET[0]: GPIO1
Logic 0 = Disable GPIO1 status in custom interrupt packet.
Logic 1 = Enable GPIO1 status in custom interrupt packet.
CUSTOM_INT_PACKET[1]: GPIO2
Logic 0 = Disable GPIO2 status in custom interrupt packet.
Logic 1 = Enable GPIO2 status in custom interrupt packet.
CUSTOM_INT_PACKET[2]: Reserved
This bit is reserved and should remain ’0’.
CUSTOM_INT_PACKET[3]: GPIO0
Logic 0 = Disable GPIO0 status in custom interrupt packet.
Logic 1 = Enable GPIO0 status in custom interrupt packet.
CUSTOM_INT_PACKET[4]: GPIO3
Logic 0 = Disable GPIO3 status in custom interrupt packet.
Logic 1 = Enable GPIO3 status in custom interrupt packet.
CUSTOM_INT_PACKET[5]: GPIO4
Logic 0 = Disable GPIO4 status in custom interrupt packet.
Logic 1 = Enable GPIO4 status in custom interrupt packet.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| XR21V1414IM-0A-EB | 功能描述:界面開發(fā)工具 Eval Board for XR21V1414IM48-F RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR21V1414IM-0B-EB | 功能描述:界面開發(fā)工具 For XR21V1414 TQFP48 USB, RS232;No Cables RoHS:否 制造商:Bourns 產品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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