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參數(shù)資料
| 型號(hào)： | XR16C850IM-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 32/56頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART FIFO 128B 48TQFP |
| 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： | RS485 |
| 電源電壓： | 2.97 V ~ 5.5 V |
| 帶自動(dòng)流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 帶故障啟動(dòng)位檢測(cè)功能： | 是 |
| 帶調(diào)制解調(diào)器控制功能： | 是 |
| 帶CMOS： | 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 |
| 其它名稱： | 1016-1656 XR16C850IM-F-ND |
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XR16C850
xr
2.97V TO 5.5V UART WITH 128-BYTE FIFO
REV. 2.3.1
38
This register is accessible when LCR = 0xBF. Note that this register is not identical to the FIFO Level Register
which is located in the general register set when FCTR bit-6 = 1.
FC[7:0]: FIFO Data Count Register
Transmit/Receive FIFO Count. Number of characters in Transmit (FCTR[7] = 1) or Receive FIFO (FCTR[7] =
0) can be read via this register.
4.18
Feature Control Register (FCTR) - Read/Write
This register controls the XR16C2850 new functions that are not available in ST16C550 or ST16C650A.
FCTR[1:0]: Auto RTS Hysteresis
User selectable RTS# hysteresis levels for hardware flow control application. After reset, these bits are set to
“0” to select the next trigger level for hardware flow control. See Table 5 for more details.
FCTR[2]: IrDa RX Inversion
Logic 0 = Select RX input as encoded IrDa data (Idle state will be logic 0).
Logic 1 = Select RX input as inverted encoded IrDa data (Idle state will be logic 1).
FCTR[3]: Auto RS-485 Direction Control
Logic 0 = Standard ST16C550 mode. Transmitter generates an interrupt when transmit holding register
becomes empty and transmit shift register is shifting data out.
Logic 1 = Enable Auto RS485 Direction Control function. The direction control signal, RS485 pin, changes
its output logic state from low to high one bit time after the last stop bit of the last character is shifted out.
Also, the Transmit interrupt generation is delayed until the transmitter shift register becomes empty. The
RS485 output pin will automatically return to a logic low when a data byte is loaded into the TX FIFO.
FCTR[5:4]: Transmit/Receive Trigger Table Select
See Table 10 for more details.
FCTR[6]: Scratchpad Swap
Logic 0 = Scratch Pad register is selected as general read and write register. ST16C550 compatible mode.
Logic 1 = FIFO Count register (Read-Only), Enhanced Mode Select Register (Write-Only). Number of
characters in transmit or receive FIFO can be read via scratch pad register when this bit is set. Enhanced
Mode Select Register is selected when it is written into.
TABLE 13: TRIGGER TABLE SELECT
FCTR
BIT-5
FCTR
BIT-4
TABLE
0
Table-A (TX/RX)
0
1
Table-B (TX/RX)
1
0
Table-C (TX/RX)
1
Table-D (TX/RX)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16C850IMTR-F | 功能描述:UART 接口集成電路 UART W/128 BYTE FIFO 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 |
| XR16C850IP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART|CMOS|DIP|40PIN|PLASTIC |
| XR16C850IQ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:UART|CMOS|QFP|52PIN|PLASTIC |
| XR16C854 | 制造商:EXAR 制造商全稱:EXAR 功能描述:并轉(zhuǎn)串4串口擴(kuò)展芯片 |
| XR16C854CJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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