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参数资料
| 型号： | MAX14830ETM+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 49/68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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53
Maxim Integrated
Quad Serial UART with 128-Word FIFOs
MAX14830
CLKSource—Clock Source Register
Bit 7: CLKtoRTS
Set the CLKtoRTS bit to 1 to route the baud-rate generator (16x baud rate) output clock to RTS_. The clock frequency
is a factor of 16x, 8x, or 4x of the baud rate, depending on the BRGConfig[5:4] settings.
Bits 6, 5: No Function
Bit 4:
Bi 4 can be programmed to logic 0 or logic 1.
Bit 3: PLLBypass
Set the PLLBypass bit to 1 to enable bypassing the internal PLL and predivider.
Bit 2: PLLEn
Set the PLLEn bit to 1 to enable the internal PLL. Set PLLEn to 0 to disable the internal PLL.
Bit 1: CrystalEn
Set the CrystalEn bit to 1 to enable the crystal oscillator. When using an external clock source at XIN, set CrystalEn to 0.
Bit 0:
Always keep Bit 0 at logic 0.
GlobalIRQ—Global IRQ Register
Bits 7–4: No Function
Bits 3–0: IRQ[n]
The MAX14830 has a single IRQ output. The GlobalIRQ register bits report which of the UARTs have an interrupt pend-
ing, as enabled in the ISRIntEn registers.
The GlobalIRQ register can be read in two ways: either by reading register 0x1F of any of the four UARTs or by sam-
pling the 4 bits sent to the master on MISO during the command byte of a read cycle (full-duplex SPI) (see the Fast
Read Cycle section for more information).
IRQ[n] is set to 0 when the associated UART's internal IRQ is generated.
IRQ_ bits are cleared when the associated UART interrupt is cleared. UART interrupts are cleared by reading the UART
ISR register.
ADDRESS:
0x1E
MODE:
R/W
BIT
7
6
5
4
3
2
1
0
NAME
CLKtoRTS
—
PLLBypass
PLLEn
CrystalEn
—
RESET
0
1
0
ADDRESS:
0x1F
MODE:
R
BIT
7
6
5
4
3
2
1
0
NAME
—
IRQ3
IRQ2
IRQ1
IRQ0
RESET
0
1
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相关代理商/技术参数 |
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|---|---|
| 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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