- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1974 > XR16L651IM-F (Exar Corporation)IC UART FIFO 32B 48TQFP PDF資料下載
參數(shù)資料
| 型號： | XR16L651IM-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 30/56頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC UART FIFO 32B 48TQFP |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 特點(diǎn)： | * |
| 通道數(shù)： | 1，UART |
| FIFO's： | 32 字節(jié) |
| 規(guī)程： | 打印機(jī)，RS232，RS422，RS485 |
| 電源電壓： | 2.25 V ~ 5.5 V |
| 帶并行端口： | 是 |
| 帶自動流量控制功能： | 是 |
| 帶IrDA 編碼器/解碼器： | 是 |
| 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(yīng)商設(shè)備封裝： | 48-TQFP（7x7） |
| 包裝： | 托盤 |
第1頁第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頁當(dāng)前第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁
XR16L651
á
2.25V TO 5.5V UART WITH 32-BYTE FIFO
REV. 1.3.0
36
EFR[3:0]: Software Flow Control Select
Combinations of software flow control can be selected by programming these bits.
EFR[4]: Enhanced Function Bits Enable
Enhanced function control bit. This bit enables IER bits 4-7, ISR bits 4-5, FCR bits 4-5, MCR bits 5-7, XFR bits
0-7 and IRPW bits 0-7 to be modified. After modifying any enhanced bits, EFR bit-4 can be set to a logic 0 to
latch the new values. This feature prevents legacy software from altering or overwriting the enhanced functions
once set. Normally, it is recommended to leave it enabled, logic 1.
Logic 0 = modification disable/latch enhanced features. IER bits 4-7, ISR bits 4-5, FCR bits 4-5, MCR bits 5-
7, XFR bits 0-7 and IRPW bits 0-7 are saved to retain the user settings. After a reset, the IER bits 4-7, ISR
bits 4-5, FCR bits 4-5, MCR bits 5-7, XFR bits 0-7 and IRPW bits 0-7 are set to a logic 0 to be compatible
with ST16C550 mode. (default).
Logic 1 = Enables the above-mentioned register bits to be modified by the user.
EFR[5]: Special Character Detect Enable
Logic 0 = Special Character Detect Disabled. (default)
Logic 1 = Special Character Detect Enabled. The UART compares each incoming receive character with
data in Xoff-2 register. If a match exists, the received data will be transferred to FIFO and ISR bit-4 will be set
to indicate detection of the special character. Bit-0 corresponds with the LSB bit for the receive character. If
flow control is set for comparing Xon1, Xoff1 (EFR [1:0]=10) then flow control and special character work
normally. However, if flow control is set for comparing Xon2, Xoff2 (EFR[1:0]=01) then flow control works
normally, but Xoff2 will not go to the FIFO, and will generate an Xoff interrupt and a special character
interrupt.
TABLE 12: SOFTWARE FLOW CONTROL FUNCTIONS
EFR BIT-3
EFR BIT-2
EFR BIT-1
EFR BIT-0
TRANSMIT AND RECEIVE SOFTWARE FLOW CONTROL
0
No TX and RX flow control (default and reset)
0
X
No transmit flow control
1
0
X
Transmit Xon1/Xoff1
0
1
X
Transmit Xon2/Xoff2
1
X
Transmit Xon1 and Xon2/Xoff1 and Xoff2
X
0
No receive flow control
X
1
0
Receiver compares Xon1/Xoff1
X
0
1
Receiver compares Xon2/Xoff2
1
0
1
Transmit Xon1/ Xoff1,
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
0
1
Transmit Xon2/Xoff2,
Receiver compares Xon1 or Xon2, Xoff1 or Xoff2
1
Transmit Xon1 and Xon2/Xoff1 and Xoff2,
Receiver compares Xon1 and Xon2/Xoff1 and Xoff2
0
1
No transmit flow control,
Receiver compares Xon1 and Xon2/Xoff1 and Xoff2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XR16L784IV-F | IC UART 8B 3.3V QUAD 64LQFP |
| XR16L788IQ-F | IC UART 64B 3.3V OCTAL 100QFP |
| XR16M2550IL32-F | IC UART FIFO 16B 1.8V DUAL 32QFN |
| XR16M2551IL32-F | IC UART FIFO 16B DUAL 32QFN |
| XR16M2650IM48-F | IC UART FIFO 32B DUAL 48TQFP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XR16L651IMTR-F | 制造商:Exar Corporation 功能描述:UART 1-CH 32Byte FIFO 2.5V/3.3V/5V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XR16L651IMTR-F |
| XR16L784 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART |
| XR16L784_05 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART |
| XR16L784_08 | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART |
| XR16L78464-TQFP | 制造商:EXAR 制造商全稱:EXAR 功能描述:HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。