- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3761 > XR16L2450IM-F (Exar Corporation)IC UART FIFO 1B DUAL 48TQFP PDF資料下載
參數(shù)資料
| 型號： | XR16L2450IM-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 2/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART FIFO 1B DUAL 48TQFP |
| 標準包裝： | 250 |
| 特點： | * |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 1 字節(jié) |
| 規(guī)程： | RS232 |
| 電源電壓： | 2.25 V ~ 5.5 V |
| 帶故障啟動位檢測功能： | 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 |
| 供應商設(shè)備封裝： | 48-TQFP（7x7） |
| 包裝： | 托盤 |
第1頁當前第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
XR16L2450
xr
2.25V TO 5.5V DUART
REV. 1.1.1
10
2.11
Receiver
The receiver section contains an 8-bit Receive Shift Register (RSR) and 1 byte FIFO or Receive Holding
Register (RHR). The RSR uses the 16X clock for timing. It verifies and validates every bit on the incoming
character in the middle of each data bit. On the falling edge of a start or false start bit, an internal receiver
counter starts counting at the 16X clock rate. After 8 clocks the start bit period should be at the center of the
start bit. At this time the start bit is sampled and if it is still a logic 0 it is validated. Evaluating the start bit in this
manner prevents the receiver from assembling a false character. The rest of the data bits and stop bits are
sampled and validated in this same manner to prevent false framing. If there were any error(s), they are
reported in the LSR register bits 2-4. Once the data is received, the error tags are immediately updated to
reflect the status of the data byte in RHR register. RHR will generate a receive data ready interrupt upon
receiving a character if IER bit-0 has been enabled.
2.11.1
Receive Holding Register (RHR) - Read-Only
The Receive Holding Register is an 8-bit register that holds a receive data byte from the Receive Shift
Register. It provides the receive data interface to the host processor. The RHR register is part of the 1 byte
receive FIFO that is 11-bits wide, the 3 extra bits are for the 3 error tags to be reported in LSR register. After the
RHR is read, LSR bits 2-4 willl immediately be updated to reflect the errors for the next character byte
transferred from the RSR.
FIGURE 6. RECEIVER OPERATION
Receive Data Shift
Register (RSR)
Receive
Data Byte
and Errors
RHR Interrupt (ISR bit-2)
Receive Data
Holding Register
(RHR)
RXFIFO1
16X Clock
Receive Data Characters
Data Bit
Validation
Error
Tags in
LSR bits
4:2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR68C192CJTR-F | IC UART FIFI DUAL 44PLCC |
| ST16C2450IJ44-F | IC UART FIFO DUAL 44PLCC |
| ST16C452CJ68-F | IC UART W/PAR PORT DUAL 68PLCC |
| XR16L2750CJ-F | IC UART FIFO 64B DUAL 44PLCC |
| ST16C452IJ68PS-F | IC UART W/PAR PORT DUAL 68PLCC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16L2550 | 制造商:EXAR 制造商全稱:EXAR 功能描述:LOW VOLTAGE DUART WITH 16-BYTE FIFO |
| XR16L2550_07 | 制造商:EXAR 制造商全稱:EXAR 功能描述:LOW VOLTAGE DUART WITH 16-BYTE FIFO |
| XR16L2550IJ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| XR16L2550IJ-F | 功能描述:UART 接口集成電路 UART 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 |
| XR16L2550IL | 功能描述:UART 接口集成電路 UART 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。