參數(shù)資料
型號(hào)： MAX14830ETM+
廠商： Maxim Integrated Products
文件頁數(shù)： 49/68頁
文件大?。?/td> 0K
描述： SEMICONDUCTOR OTHER
標(biāo)準(zhǔn)包裝： 43
系列： *
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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參數(shù)描述
MAX14830ETM+ 功能描述:UART 接口集成電路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX14830ETM+T 功能描述:UART 接口集成電路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
MAX14830EVKIT# 功能描述:界面開發(fā)工具 MAX14830 Eval Kit RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓: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 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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