- 您现在的位置：买卖IC网 > PDF目录98009 > MAX14830ETM+ (MAXIM INTEGRATED PRODUCTS INC) SERIAL COMM CONTROLLER, QCC48 PDF资料下载
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： | 55/68页 |
| 文件大小： | 2356K |
| 代理商： | MAX14830ETM+ |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页当前第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页
MAX14830
Quad Serial UART with 128-Word FIFOs
and Internal Oscillator
59
Fast Read Cycle
On the MAX14830 the four UART interrupts share the
single IRQ output. When operating in interrupt-based
mode, the microcontroller needs to locate the source of
the interrupt (i.e. which of the four UARTs generated the
interrupt) and clear the interrupt.
To locate the source of an interrupt more quickly, the
MAX14830 implements the SPI fast read cycle. This
means that the microcontroller can determine which
UART is the source of the interrupt (UART0, UART1,
UART2, or UART3) using only 8 clock cycles (Figure 20).
U1 and U0 bits are ignored during the fast read cycle.
I2C Interface
The MAX14830 contains an I2C-compatible interface
for data communication with a host processor (SCL and
SDA). The interface supports a clock frequency up to
1MHz. SCL and SDA require pullup resistors that are
connected to a positive supply.
START, STOP, and Repeated START Conditions
When writing to the MAX14830 using I2C, the master
sends a START condition (S) followed by the MAX14830
I2C address. After the address, the master sends
the register address of the register that is to be pro-
grammed. The master then ends communication by
Figure 19. SPI Read Cycle
Figure 20. SPI Fast Read Cycle
HIGH-Z
Ax = REGISTER ADDRESS
Dx = EIGHT-BIT REGISTER CONTENTS
SCLK
MOSI
MISO
R
U1
U0
A4
A3
A2
A1
A0
CS
IRQ3
IRQ2
IRQ1
IRQ0
D7
D6
D5
D4
D3
D2
D1
D0
MOSI
Ax = REGISTER ADDRESS
SCLK
CS
MISO
U1
HIGH-Z
R
U0
A4
A3
A2
A1
A0
IRQ3
IRQ2
IRQ1
IRQ0
相关PDF资料 |
PDF描述 |
|---|---|
| MAX3624AETJ+ | 312.5 MHz, OTHER CLOCK GENERATOR, QCC32 |
| MAX3638ETM+ | 800 MHz, OTHER CLOCK GENERATOR, QCC48 |
| MAX3679CTJ+ | 625 MHz, OTHER CLOCK GENERATOR, QCC32 |
| MAX7329AUP+ | 8 I/O, PIA-GENERAL PURPOSE, PDSO20 |
| MAX7329AAP+ | 8 I/O, PIA-GENERAL PURPOSE, PDSO20 |
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 |
发布紧急采购，3分钟左右您将得到回复。