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參數(shù)資料
| 型號： | XR19L402IL48-F |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 31/49頁 |
| 文件大小： | 0K |
| 描述： | IC UART/TXRX RS485 48QFN |
| 標(biāo)準(zhǔn)包裝： | 260 |
| 特點： | * |
| 通道數(shù)： | 2，DUART |
| FIFO's： | 64 字節(jié) |
| 規(guī)程： | RS485 |
| 電源電壓： | 3.3V，5V |
| 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-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 48-QFN-EP（7x7） |
| 包裝： | 托盤 |
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XR19L402
37
REV. 1.0.3
TWO CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
FCTR[7]: Programmable Trigger Register Select
If using both programmable TX and RX trigger levels, TX trigger levels must be set before RX trigger levels.
Logic 0 = Registers TRG and FC selected for RX.
Logic 1 = Registers TRG and FC selected for TX.
4.19
Enhanced Feature Register (EFR)
Enhanced features are enabled or disabled using this register. Bit 0-3 provide single or dual consecutive
character software flow control selection (see Table 15). When the Xon1 and Xon2 and Xoff1 and Xoff2 modes
are selected, the double 8-bit words are concatenated into two sequential characters. Caution: note that
whenever changing the TX or RX flow control bits, always reset all bits back to logic 0 (disable) before
programming a new setting.
EFR[3:0]: Software Flow Control Select
Single character and dual sequential characters software flow control is supported. Combinations of software
flow control can be selected by programming these bits.
TABLE 15: SOFTWARE FLOW CONTROL FUNCTIONS
EFR BIT-3
CONT-3
EFR BIT-2
CONT-2
EFR BIT-1
CONT-1
EFR BIT-0
CONT-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
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相關(guān)代理商/技術(shù)參數(shù) |
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| XR1AEX2NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Ope 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Operation:Off-On, Contact Current Max:18A, Contact Voltage AC Nom:125V, Switch Mounting:Panel, Actuator / Cap Color:Red, Illumination Color:Red , RoHS Compliant: Yes |
| XR1AEX3NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Ope |
| XR1AEX4NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPST, 18A, 125VAC, BLACK, Contact Configuration:SPST, Switch Operation:Off-On, Contact Current Max:18A, Contact Voltage AC Nom:125V, Switch Mounting:Panel, Actuator / Cap Color:Amber, Illumination Color:Amber , RoHS Compliant: Yes |
| XR1BG33NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPDT, 18A, 125VAC, BLACK, Contact Configuration:SPDT, Switch Ope |
| XR1BG44NV1XX | 制造商:Eaton Corporation 功能描述:SWITCH, ROCKER, SPDT, 18A, 125VAC, BLACK, Contact Configuration:SPDT, Switch Operation:On-Off-On, Contact Current Max:18A, Contact Voltage AC Nom:125V, Switch Mounting:Panel, Actuator / Cap Color:Amber, Illumination Color:Amber , RoHS Compliant: Yes |
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