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參數(shù)資料
| 型號： | MAXQ2000-RBX |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Low-Power LCD Microcontroller |
| 中文描述： | 16-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, QCC56 |
| 封裝： | 8 X 8 MM, 0.80 MM HEIGHT, MO-220, TQFN-56 |
| 文件頁數(shù)： | 30/39頁 |
| 文件大?。?/td> | 1798K |
| 代理商： | MAXQ2000-RBX |
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M
Low-Power LCD Microcontroller
30
____________________________________________________________________
The watchdog timer is controlled through bits in the
WDCN register. Its timeout period can be set to one of
four programmable intervals ranging from 2
12
to 2
21
system clocks in its default mode, allowing flexibility to
support different types of applications. The interrupt
occurs 512 system clocks before the reset, allowing the
system to execute an interrupt and place the system in
a known, safe state before the device performs a total
system reset. At 16MHz, watchdog timeout periods can
be programmed from 256μs to 33.5s, depending on the
system clock mode.
Serial Peripherals
The microcontroller incorporates several common seri-
al-peripheral interfaces for interconnection with popular
external devices. Multiple formats provide maximum
flexibility and lower cost when designing a system.
UARTs
Serial interfacing is provided through one (-RBX) or two
(-RAX) 8051-style universal synchronous/asynchronous
receiver/transmitters. The UART allows the device to
conveniently communicate with other RS-232 interface-
enabled devices, as well as PCs and serial modems
when paired with an external RS-232 line driver/receiv-
er. The dual independent UARTs can communicate
simultaneously at different baud rates with two separate
peripherals. The UART can detect framing errors and
indicate the condition through a user-accessible soft-
ware bit.
The time base of the serial ports is derived from either a
division of the system clock or the dedicated baud
clock generator. The following
table
summarizes the
operating characteristics as well as the maximum baud
rate of each mode:
1-Wire Bus Master
The MAXQ2000-RAX includes a Dallas Semiconductor
1-Wire bus master, which communicates to other 1-Wire
peripherals, including iButton
products, through a
simple bidirectional signaling scheme over a single
electrical connection. The bus master provides com-
plete control of the 1-Wire bus and transmit and receive
activities, and generates all timing and control
sequences of the 1-Wire bus. Communication between
the CPU and the bus master is achieved through
read/write access of the 1-Wire master address (OWA)
and 1-Wire master data (OWD) peripheral registers.
Detailed operation of the 1-Wire bus is described in the
Book of iButton Standards
(www.maxim-ic.com/
iButtonbook).
Serial-Peripheral Interface (SPI) Module
The SPI port is a common, high-speed, synchronous
peripheral interface that shifts a bit stream of variable
length and data rate between the microcontroller and
other peripheral devices. The SPI can be used to com-
municate with other microcontrollers, serial shift regis-
ters, or display drivers. Multiple master and slave
modes permit communication with multiple devices in
the same system. Programmable clock frequency,
character lengths, polarity, and error handling enhance
the usefulness of the peripheral. The maximum baud
rate of the SPI interface is 1/2 the system clock for mas-
ter mode operation and 1/8 the system clock for slave
mode operation.
MODE
TYPE
START BITS
DATA BITS
STOP BIT
MAX BAUD RATE
AT 16MHz
Mode 0
Mode 1
Mode 2
Mode 3
Synchronous
Asynchronous
Asynchronous
Asynchronous
N/A
1
1
1
8
8
N/A
1
1
1
4Mbps
500kbps
500kbps
500kbps
8 + 1
8 + 1
iButton is a registered trademark of Dallas Semiconductor Corp.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAXQ2000-RBX+ | 功能描述:16位微控制器 - MCU Low-Power LCD MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MAXQ2000-RBXX | 制造商:Maxim Integrated Products 功能描述:BLOOD GLUCOSE MICRO 56TQFN - Rail/Tube |
| MAXQ2000-RFX | 功能描述:16位微控制器 - MCU Low-Power LCD MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MAXQ2000-RFX+ | 功能描述:16位微控制器 - MCU Low-Power LCD MCU RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MAXQ-2000STK | 功能描述:開發(fā)板和工具包 - 其他處理器 STARTERKIT BRD FOR MAX2000-RAX RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
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