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参数资料
| 型号： | MAX14830ETM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 41/68页 |
| 文件大小： | 0K |
| 描述： | IC UART |
| 产品培训模块： | Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
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46
Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
Bit 2: GPIAddr
The GPIAddr bit, when set, enables that the four GPIO_ inputs are used in conjunction with XOFF2 for the definition of
a special character. This can be used, for example, for defining the address of a RS-485 slave device through hard-
ware. The GPIO_ input logic levels define the four LSBs of the special character, while the four MSBs are defined by
the XOFF2[7:4] bits. If GPIAddr is set, the contents of the XOFF2[3:0] bits are neglected. In this case, the XOFF2[3:0]
bits, when read, also do not reflect the logic on GPIO_.
Bit 1: AutoCTS
The AutoCTS bit enables automatic CTS flow control by which the transmitter stops and starts sending data depend-
ing on the logic state at the CTS_ input. See the Auto Hardware Flow Control section for a description of AutoCTS
flow control. Logic changes at the CTS_ input result in an ISR[7]: CTSInt interrupt. The transmitter must be turned off,
(MODE1[1] = 1), before AutoCTS is enabled.
Bit 0: AutoRTS
The AutoRTS bit enables automatic RTS flow control by which the MAX14830 sets its RTS_ output dependent on the
Receive FIFO fill level. The FIFO thresholds at which RTS_ changes state are set in FlowLvl. See the Auto Hardware
Flow Control section for more information.
Table 4. SwFlow_ Truth Table
X = Don’t care.
SwFlow3
SwFlow2
SwFlow1
SwFlow0
DESCRIPTION
RECEIVER FLOW
CONTROL
TRANSMITTER FLOW
CONTROL/SPECIAL
CHARACTER
DETECTION
0
No flow control. No character detection.
0
X
No receiver flow control.
1
0
X
Transmitter generates XON1, XOFF1.
0
1
X
Transmitter generates XON2, XOFF2.
1
X
Transmitter generates XON1, XON2, XOFF1, and XOFF2.
X
0
No transmitter flow control.
X
1
0
Receiver compares XON1 and XOFF1 and controls the transmitter accord-
ingly. XON1 and XOFF1 special character detection.
X
0
1
Receiver compares XON2 and XOFF2 and controls the transmitter accord-
ingly. XON2 and XOFF2 special character detection.
X
1
Receiver compares XON1, XON2, XOFF1, and XOFF2 and controls the
transmitter accordingly. XON1, XON2, XOFF1, XOFF2 special character
detection.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX14830EVKIT# | 功能描述:界面开发工具 MAX14830 Eval Kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| MAX14830EVKIT+ | 制造商:Maxim Integrated Products 功能描述:QUAD UART EV-KIT WITH IO-LINK AND MULTIPROTOCOL - Boxed Product (Development Kits) |
| MAX1483C/D+ | 功能描述:RS-485接口IC low-power transceivers for RS-485 and RS-422 communication RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1483CPA | 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1483CPA+ | 功能描述:RS-422/RS-485 接口 IC Slew-Rate-Limited RS-485 Transceivers RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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