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参数资料
| 型号： | MAX14830ETM+ |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SERIAL COMM CONTROLLER, QCC48 |
| 封装： | 7 X 7 MM, ROHS COMPLIANT, TQFN-48 |
| 文件页数： | 26/68页 |
| 文件大小： | 2356K |
| 代理商： | MAX14830ETM+ |
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MAX14830
Quad Serial UART with 128-Word FIFOs
and Internal Oscillator
32
ISR—Interrupt Status Register
The Interrupt Status Register provides an overview of all interrupts generated in the MAX14830. These interrupts are
cleared upon reading the ISR. When the MAX14830 is operated in polled mode, the ISR can be polled to establish
the UART’s status. In interrupt-driven mode, IRQ interrupts are enabled through the appropriate IRQEn bits. The ISR
contents give direct information on the cause for the interrupt or point to other registers that contain more detailed
information.
Bit 7: CTSInt
The CTSInt is set when a logic state transition occurs at the CTS_ input. This bit is cleared after ISR is read. The current
logic state of the CTS_ input can be read out through LSR[7]: CTS bit.
Bit 6: RFifoEmptyInt
The RFifoEmptyInt is set when the Receive FIFO is empty. This bit is cleared after ISR is read. Its meaning can be
inverted by setting the MODE2[3]: RxEmtyInt bit.
Bit 5: TFifoEmptyInt
The TFifoEmptyInt bit is set when the Transmit FIFO is empty. This bit is cleared once ISR is read.
Bit 4: TFifoTrigInt
The TFifoTrigInt bit is set when the number of characters in the Transmit FIFO is equal to or greater than the Transmit
FIFO trigger level defined in FIFOTrigLvl[3:0]. TFifoTrigInt is cleared when the Transmit FIFO level falls below the trigger
level or after the ISR is read. It can be used as a warning that the Transmit FIFO is nearing overflow.
Bit 3: RFifoTrigInt
The RFifoTrigInt bit is set when the Receive FIFO fill level reaches the Receive FIFO trigger level, as defined in
FIFOTrigLvl[7:4]. This can be used as an indication that the Receive FIFO is nearing overrun. It can also be used to
report that a known number of words are available that can be read out in one block. The meaning of RFifoTrigInt can
be inverted through MODE2[2]. RFifoTrigInt is cleared when ISR is read.
Bit 2: STSInt
The STSInt bit is set high when any bit in the STSInt register that is enabled through a STSIntEn bit is high. The STSInt
bit is cleared upon reading ISR.
Bit 1: SpCharInt
The SpCharInt bit is set high when a special character is received, a line BREAK is detected or an address character is
received in multidrop mode. The cause for the SpCharInt interrupt can be read from the SpclCharInt register, if enabled
through the SpclChrIntEn bits. The SpCharInt interrupt is cleared when the ISR is read.
Bit 0: LSRErrInt
The LSRErrInt bit is set high when any LSR bits, which are enabled through the LSRIntEn, are set. This bit is cleared
after the ISR is read.
ADDRESS:
0x02
MODE:
COR
BIT
7
6
5
4
3
2
1
0
NAME
CTSInt
RFifoEmptyInt
TFifoEmptyInt
TFifoTrigInt
RFifoTrigInt
STSInt
SpCharInt
LSRErrInt
RESET
0
1
0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX14830ETM+ | 功能描述:UART 接口集成电路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX14830ETM+T | 功能描述:UART 接口集成电路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| 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 |
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