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參數(shù)資料
| 型號： | XR17L152CM |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 3.3V PCI BUS DUAL UART |
| 中文描述： | 2 CHANNEL(S), 3.125M bps, SERIAL COMM CONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 1 MM HEIGHT, TQFP-100 |
| 文件頁數(shù)： | 44/55頁 |
| 文件大?。?/td> | 318K |
| 代理商： | XR17L152CM |
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DISCONTINUED
XR17L152
3.3V PCI BUS DUAL UART
REV. 1.1.0
44
TXCNT[7:0]: Transmit FIFO Level Counter, read-only
Transmit FIFO level byte count from 0x00 (zero) to 0x40 (64). This 8-bit register gives an indication of the
number of characters in the transmit FIFO. The FIFO level Byte count register is read only. The user can take
advantage of the FIFO level byte counter for faster data loading to the transmit FIFO, which reduces CPU
bandwidth requirements.
TXTRG [7:0]: Transmit FIFO Trigger Level, write-only
An 8-bit value written to this register sets the TX FIFO trigger level from 0x00 (zero) to 0x40 (64). The TX FIFO
trigger level generates an interrupt whenever the data level in the transmit FIFO falls below this preset trigger
level.
RXCNT[7:0]: Receive FIFO Level Counter, read-only
Receive FIFO level byte count from 0x00 (zero) to 0x40 (64). It gives an indication of the number of characters
in the receive FIFO. The FIFO level byte count register is read only. The user can take advantage of the FIFO
level byte counter for faster data unloading from the receiver FIFO, which reduces CPU bandwidth
requirements.
RXTRG[7:0]: Receive FIFO Trigger Level, write only
An 8-bit value written to this register, sets the RX FIFO trigger level from 0x00 (zero) to 0x40 (64). The RX
FIFO trigger level generates an interrupt whenever the receive FIFO level rises to this preset trigger level.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR17L152IM | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS DUAL UART |
| XR17L154 | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS QUAD UART |
| XR17L154CV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| XR17L154IV | 制造商:EXAR 制造商全稱:EXAR 功能描述:3.3V PCI BUS QUAD UART |
| XR17V252 | 制造商:EXAR 制造商全稱:EXAR 功能描述:66 MHZ PCI BUS DUAL UART WITH POWER MANAGEMENT SUPPORT |
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