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MAXQ610A-0000 Datasheet(PDF) 11 Page - Maxim Integrated Products |
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MAXQ610A-0000 Datasheet(HTML) 11 Page - Maxim Integrated Products |
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11 / 29 page  Detailed Description The MAXQ610 microcontroller provides integrated, low- cost solutions that simplify the design of IR communica- tions equipment such as universal remote controls. Standard features include the highly optimized, single- cycle, MAXQ 16-bit RISC core, 64KB of flash memory, 2KB data RAM, a soft stack, 16 general-purpose regis- ters, and three data pointers. The MAXQ core offers the industry’s best MIPS/mA rating, allowing developers to achieve the same performance as competing micro- controllers at substantially lower clock rates. Combining lower active-mode current with the MAXQ610 stop- mode current (0.2µA typical) results in increased bat- tery life. Application-specific peripherals include flexible timers for generating IR carrier frequencies and modulation, a high-current IR drive pin capable of sink- ing up to 25mA current, and output pins capable of sinking up to 5mA ideal for IR applications, general- purpose I/O pins ideal for keypad matrix input, and a power-fail-detection circuit to notify the application when the supply voltage is nearing the minimum oper- ating voltage of the microcontroller. At the heart of the MAXQ610 is the MAXQ 16-bit RISC core. The MAXQ610 operates from DC to 12MHz and almost all instructions execute in a single clock cycle (83.3ns at 12MHz), enabling nearly 12MIPS true code operation. When active device operation is not required, an ultra-low-power stop mode can be invoked from software resulting in quiescent current consump- tion of less than 0.2µA typical and 2.0µA maximum. The combination of high-performance instructions and ultra- low stop-mode current increases battery life over com- peting microcontrollers. An integrated POR circuit with brownout support resets the device to a known condi- tion following a power-up cycle or brownout condition. Additionally, a power-fail warning flag is set and a power-fail interrupt can be generated when the system voltage falls below the power-fail warning voltage, VPFW. The power-fail warning feature allows the appli- cation to notify the user that the system supply is low and appropriate action should be taken. Microprocessor The MAXQ610 is based on Maxim’s MAXQ core. The MAXQ is a low-power implementation of the new 16-bit MAXQ family of RISC cores. The core supports the Harvard memory architecture with separate 16-bit pro- gram and data address buses. A fixed 16-bit instruction word is standard, but data can be arranged in 8 or 16 bits. The MAXQ core in the MAXQ610 family is imple- mented as a pipelined processor with performance approaching 1MIPS per MHz. The 16-bit data path is implemented around register modules, and each regis- ter module contributes specific functions to the core. The accumulator module consists of sixteen 16-bit regis- ters and is tightly coupled with the arithmetic logic unit (ALU). A configurable soft stack supports program flow. Execution of instructions is triggered by data transfer between functional register modules or between a func- tional register module and memory. Because data movement involves only source and destination mod- ules, circuit-switching activities are limited to active modules only. For power-conscious applications, this approach localizes power dissipation and minimizes switching noise. The modular architecture also provides a maximum of flexibility and reusability that is important for a microprocessor used in embedded applications. The MAXQ instruction set is highly orthogonal. All arith- metical and logical operations can use any register in conjunction with the accumulator. Data movement is supported from any register to any other register. Memory is accessed through specific data-pointer reg- isters with automatic increment/decrement support. Memory The MAXQ610 incorporates several memory types that include the following: • 64KB program flash • 2KB SRAM data memory • 5.25KB utility ROM • Soft stack Block Diagram 16-BIT MAXQ RISC CPU 8kHz NANO RING 2KB SRAM IR TIMER SPI USART0 USART1 64KB FLASH SECURE MMU 16-BIT TIMER 16-BIT TIMER GPIO VOLTAGE MONITOR IR DRIVER REGULATOR WATCHDOG CLOCK 4KB ROM MAXQ610 16-Bit Microcontroller with Infrared Module ______________________________________________________________________________________ 11 |
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Similar Description - MAXQ610A-0000 |
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